151
|
Segal SC, Gobin KC. Threat-biased attention in childhood anxiety: A cognitive-affective developmental model. JOURNAL OF AFFECTIVE DISORDERS REPORTS 2022. [DOI: 10.1016/j.jadr.2022.100315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
152
|
Inagaki M, Inoue KI, Tanabe S, Kimura K, Takada M, Fujita I. Rapid processing of threatening faces in the amygdala of nonhuman primates: subcortical inputs and dual roles. Cereb Cortex 2022; 33:895-915. [PMID: 35323915 PMCID: PMC9890477 DOI: 10.1093/cercor/bhac109] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 02/22/2022] [Accepted: 02/22/2022] [Indexed: 02/04/2023] Open
Abstract
A subcortical pathway through the superior colliculus and pulvinar has been proposed to provide the amygdala with rapid but coarse visual information about emotional faces. However, evidence for short-latency, facial expression-discriminating responses from individual amygdala neurons is lacking; even if such a response exists, how it might contribute to stimulus detection is unclear. Also, no definitive anatomical evidence is available for the assumed pathway. Here we showed that ensemble responses of amygdala neurons in monkeys carried robust information about open-mouthed, presumably threatening, faces within 50 ms after stimulus onset. This short-latency signal was not found in the visual cortex, suggesting a subcortical origin. Temporal analysis revealed that the early response contained excitatory and suppressive components. The excitatory component may be useful for sending rapid signals downstream, while the sharpening of the rising phase of later-arriving inputs (presumably from the cortex) by the suppressive component might improve the processing of facial expressions over time. Injection of a retrograde trans-synaptic tracer into the amygdala revealed presumed monosynaptic labeling in the pulvinar and disynaptic labeling in the superior colliculus, including the retinorecipient layers. We suggest that the early amygdala responses originating from the colliculo-pulvino-amygdalar pathway play dual roles in threat detection.
Collapse
Affiliation(s)
- Mikio Inagaki
- Laboratory for Cognitive Neuroscience, Graduate School of Frontier Biosciences, Osaka University, 1-4 Yamadaoka, Suita, Osaka 565-0871, Japan,Center for Information and Neural Networks, National Institute of Information and Communications Technology and Osaka University, 1-4 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ken-ichi Inoue
- Systems Neuroscience Section, Primate Research Institute, Kyoto University, 41-2 Kanrin, Inuyama, Aichi 484-8506, Japan
| | - Soshi Tanabe
- Systems Neuroscience Section, Primate Research Institute, Kyoto University, 41-2 Kanrin, Inuyama, Aichi 484-8506, Japan
| | - Kei Kimura
- Systems Neuroscience Section, Primate Research Institute, Kyoto University, 41-2 Kanrin, Inuyama, Aichi 484-8506, Japan
| | - Masahiko Takada
- Systems Neuroscience Section, Primate Research Institute, Kyoto University, 41-2 Kanrin, Inuyama, Aichi 484-8506, Japan
| | - Ichiro Fujita
- Corresponding author: Laboratory for Cognitive Neuroscience, Graduate School of Frontier Biosciences, Osaka University, 1-4 Yamadaoka, Suita, Osaka 565-0871, Japan.
| |
Collapse
|
153
|
Biswas R, Shlizerman E. Statistical Perspective on Functional and Causal Neural Connectomics: A Comparative Study. Front Syst Neurosci 2022; 16:817962. [PMID: 35308566 PMCID: PMC8924489 DOI: 10.3389/fnsys.2022.817962] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/19/2022] [Indexed: 11/13/2022] Open
Abstract
Representation of brain network interactions is fundamental to the translation of neural structure to brain function. As such, methodologies for mapping neural interactions into structural models, i.e., inference of functional connectome from neural recordings, are key for the study of brain networks. While multiple approaches have been proposed for functional connectomics based on statistical associations between neural activity, association does not necessarily incorporate causation. Additional approaches have been proposed to incorporate aspects of causality to turn functional connectomes into causal functional connectomes, however, these methodologies typically focus on specific aspects of causality. This warrants a systematic statistical framework for causal functional connectomics that defines the foundations of common aspects of causality. Such a framework can assist in contrasting existing approaches and to guide development of further causal methodologies. In this work, we develop such a statistical guide. In particular, we consolidate the notions of associations and representations of neural interaction, i.e., types of neural connectomics, and then describe causal modeling in the statistics literature. We particularly focus on the introduction of directed Markov graphical models as a framework through which we define the Directed Markov Property—an essential criterion for examining the causality of proposed functional connectomes. We demonstrate how based on these notions, a comparative study of several existing approaches for finding causal functional connectivity from neural activity can be conducted. We proceed by providing an outlook ahead regarding the additional properties that future approaches could include to thoroughly address causality.
Collapse
Affiliation(s)
- Rahul Biswas
- Department of Statistics, University of Washington, Seattle, WA, United States
| | - Eli Shlizerman
- Department of Applied Mathematics, Department of Electrical & Computer Engineering, University of Washington, Seattle, WA, United States
- *Correspondence: Eli Shlizerman
| |
Collapse
|
154
|
You see what you avoid: Fear of spiders and avoidance are associated with predominance of spiders in binocular rivalry. J Anxiety Disord 2022; 86:102513. [PMID: 34942504 DOI: 10.1016/j.janxdis.2021.102513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 11/26/2021] [Accepted: 12/06/2021] [Indexed: 11/21/2022]
Abstract
What we see is the result of an efficient selection of cues in the visual stream. In addition to physical characteristics this process is also influenced by emotional salience of the cues. Previously, we showed in spider phobic patients that fear-related pictures gain preferential access to consciousness in binocular rivalry. We set out to replicate this in an independent unselected sample and examine the relationship of this perceptual bias with a range of symptom clusters. To this end, we recruited 79 participants with variable degrees of fear of spiders. To induce binocular rivalry, a picture of either a spider or a flower was projected to one eye, and a neutral geometric pattern to the other eye. Participants continuously reported what they saw. We correlated indices of perceptual dominance (first percept, dominance duration) with individual fear of spiders and with scores on specific symptom clusters of fear of spiders (i.e., vigilance, fixation, and avoidance coping). Overall, higher fear of spiders correlates with more predominace of spider pictures. In addition, this perceptual bias is uniquely associated with avoidance coping. Interestingly, this demonstrates that a perceptual bias, which is not intentionally controlled, is linked with an instrumental coping behavior, that has been implicated in the maintenance of pathological fear.
Collapse
|
155
|
Pessoa L, Medina L, Desfilis E. Refocusing neuroscience: moving away from mental categories and towards complex behaviours. Philos Trans R Soc Lond B Biol Sci 2022; 377:20200534. [PMID: 34957851 PMCID: PMC8710886 DOI: 10.1098/rstb.2020.0534] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 10/01/2021] [Indexed: 11/12/2022] Open
Abstract
Mental terms-such as perception, cognition, action, emotion, as well as attention, memory, decision-making-are epistemically sterile. We support our thesis based on extensive comparative neuroanatomy knowledge of the organization of the vertebrate brain. Evolutionary pressures have moulded the central nervous system to promote survival. Careful characterization of the vertebrate brain shows that its architecture supports an enormous amount of communication and integration of signals, especially in birds and mammals. The general architecture supports a degree of 'computational flexibility' that enables animals to cope successfully with complex and ever-changing environments. Here, we suggest that the vertebrate neuroarchitecture does not respect the boundaries of standard mental terms, and propose that neuroscience should aim to unravel the dynamic coupling between large-scale brain circuits and complex, naturalistic behaviours. This article is part of the theme issue 'Systems neuroscience through the lens of evolutionary theory'.
Collapse
Affiliation(s)
- Luiz Pessoa
- Department of Psychology, University of Maryland, College Park, MD 20742, USA
| | - Loreta Medina
- Department of Experimental Medicine, Institut de Recerca Biomèdica de Lleida Fundació Dr. Pifarré (IRBLleida), University of Lleida, 25198 Lleida, Spain
| | - Ester Desfilis
- Department of Experimental Medicine, Institut de Recerca Biomèdica de Lleida Fundació Dr. Pifarré (IRBLleida), University of Lleida, 25198 Lleida, Spain
| |
Collapse
|
156
|
Hackman DA, Duan L, McConnell EE, Lee WJ, Beak AS, Kraemer DJM. School Climate, Cortical Structure, and Socioemotional Functioning: Associations across Family Income Levels. J Cogn Neurosci 2022; 34:1842-1865. [PMID: 35171285 DOI: 10.1162/jocn_a_01833] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
School climates are important for children's socioemotional development and may also serve as protective factors in the context of adversity. Nevertheless, little is known about the potential neural mechanisms of such associations, as there has been limited research concerning the relation between school climate and brain structure, particularly for brain regions relevant for mental health and socioemotional functioning. Moreover, it remains unclear whether the role of school climate differs depending on children's socioeconomic status. We addressed these questions in baseline data for 9- to 10-year-olds from the Adolescent Brain and Cognitive Development study (analytic sample for socioemotional outcomes, n = 8,887), conducted at 21 sites across the United States. Cortical thickness, cortical surface area, and subcortical volume were derived from T1-weighted brain magnetic resonance imaging. School climate was measured by youth report, and socioemotional functioning was measured by both youth and parent report. A positive school climate and higher family income were associated with lower internalizing and externalizing symptoms, with no evidence of moderation. There were no associations between school climate and cortical thickness or subcortical volume, although family income was positively associated with hippocampal volume. For cortical surface area, however, there was both a positive association with family income and moderation: There was an interaction between school climate and income for total cortical surface area and locally in the lateral orbitofrontal cortex. In all cases, there was an unexpected negative association between school climate and cortical surface area in the lower-income group. Consequently, although the school climate appears to be related to better socioemotional function for all youth, findings suggest that the association between a positive school environment and brain structure only emerges in the context of socioeconomic stress and adversity. Longitudinal data are needed to understand the role of these neural differences in socioemotional functioning over time.
Collapse
Affiliation(s)
| | - Lei Duan
- University of Southern California, Los Angeles
| | | | | | | | | |
Collapse
|
157
|
Mielke M, Reisch LM, Mehlmann A, Schindler S, Bien CG, Kissler J. Right medial temporal lobe structures particularly impact early stages of affective picture processing. Hum Brain Mapp 2022; 43:787-798. [PMID: 34687490 PMCID: PMC8720182 DOI: 10.1002/hbm.25687] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 09/29/2021] [Accepted: 10/11/2021] [Indexed: 11/12/2022] Open
Abstract
Human vision prioritizes emotional stimuli. This is reflected in stronger electrocortical activation in response to emotional than neutral stimuli, measurable on the surface of the head. Feedback projections from brain structures deep within the medial temporal lobes (mTLs), in particular the amygdala, are thought to give rise to this phenomenon, although causal evidence is rare. Given the many pathways involved in visual processing, the influence of mTL structures could be restricted to specific time windows. Therefore, we delineate the temporal dynamics of the impact of right mTL structures on affective picture processing, investigating event-related potentials (ERPs) in 19 patients (10 female) with right mTL resections and 19 individually matched healthy participants, while they viewed negative and neutral scenes. Groups differed significantly at early- and mid-latency processing stages. Patients with right mTL resection, unlike controls, showed no (P1: 90-140 ms) or marginal (N1: 170-220 ms) emotion modulation. At mid-latency (early posterior negativity: 220-370 ms), emotion modulation over the ipsi-resectional right hemisphere was smaller in patients than in controls, but groups did not differ over the left hemisphere. During late parietal positivities (400-650 ms and 650-900 ms), both groups had similar emotion modulation. Our results demonstrate that right mTL structures attenuate particularly early processing of affectively negative scenes. This is theoretically consistent with an initial amygdala-dependent feedforward sweep in visual emotion processing whose absence is successively compensated. Findings specify the impact of right mTL structures on emotional picture processing and highlight the value of time-resolved measures in affective neuroscience.
Collapse
Affiliation(s)
- Malena Mielke
- Department of PsychologyBielefeld UniversityBielefeldGermany
| | - Lea Marie Reisch
- Department of PsychologyBielefeld UniversityBielefeldGermany
- Medical School, Department of Epileptology (Krankenhaus Mara)Bielefeld UniversityBielefeldGermany
| | | | - Sebastian Schindler
- Institute of Medical Psychology and Systems NeuroscienceUniversity of MünsterMünsterGermany
| | - Christian G. Bien
- Medical School, Department of Epileptology (Krankenhaus Mara)Bielefeld UniversityBielefeldGermany
| | - Johanna Kissler
- Department of PsychologyBielefeld UniversityBielefeldGermany
| |
Collapse
|
158
|
Cinq-Mars J, Blumenthal A, Grund A, Hétu S, Blanchette I. DLPFC controls the rapid neural response to visual threat: An ERP and rTMS study. Brain Res 2022; 1784:147850. [DOI: 10.1016/j.brainres.2022.147850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 02/04/2022] [Accepted: 02/24/2022] [Indexed: 11/25/2022]
|
159
|
Jha A, Diehl B, Strange B, Miserocchi A, Chowdhury F, McEvoy AW, Nachev P. Orienting to fear under transient focal disruption of the human amygdala. Brain 2022; 146:135-148. [PMID: 35104842 PMCID: PMC9825557 DOI: 10.1093/brain/awac032] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 10/28/2021] [Accepted: 01/08/2022] [Indexed: 01/13/2023] Open
Abstract
Responding to threat is under strong survival pressure, promoting the evolution of systems highly optimized for the task. Though the amygdala is implicated in 'detecting' threat, its role in the action that immediately follows-'orienting'-remains unclear. Critical to mounting a targeted response, such early action requires speed, accuracy, and resilience optimally achieved through conserved, parsimonious, dedicated systems, insured against neural loss by a parallelized functional organization. These characteristics tend to conceal the underlying substrate not only from correlative methods but also from focal disruption over time scales long enough for compensatory adaptation to take place. In a study of six patients with intracranial electrodes temporarily implanted for the clinical evaluation of focal epilepsy, we investigated gaze orienting to fear during focal, transient, unilateral direct electrical disruption of the amygdala. We showed that the amygdala is necessary for rapid gaze shifts towards faces presented in the contralateral hemifield regardless of their emotional expression, establishing its functional lateralization. Behaviourally dissociating the location of presented fear from the direction of the response, we implicated the amygdala not only in detecting contralateral faces, but also in automatically orienting specifically towards fearful ones. This salience-specific role was demonstrated within a drift-diffusion model of action to manifest as an orientation bias towards the location of potential threat. Pixel-wise analysis of target facial morphology revealed scleral exposure as its primary driver, and induced gamma oscillations-obtained from intracranial local field potentials-as its time-locked electrophysiological correlate. The amygdala is here reconceptualized as a functionally lateralized instrument of early action, reconciling previous conflicting accounts confined to detection, and revealing a neural organisation analogous to the superior colliculus, with which it is phylogenetically kin. Greater clarity on its role has the potential to guide therapeutic resection, still frequently complicated by impairments of cognition and behaviour related to threat, and inform novel focal stimulation techniques for the management of neuropsychiatric conditions.
Collapse
Affiliation(s)
- Ashwani Jha
- Correspondence to: Ashwani Jha UCL Queen Square Institute of Neurology, London, UK E-mail:
| | - Beate Diehl
- UCL Queen Square Institute of Neurology, London, UK
| | - Bryan Strange
- CTB-UPM and Department of Neuroimaging, Reina Sofia Centre for Alzheimer's Research, Madrid, Spain
| | | | | | | | - Parashkev Nachev
- Correspondence may also be addressed to: Parashkev Nachev E-mail:
| |
Collapse
|
160
|
Moyne M, Legendre G, Arnal L, Kumar S, Sterpenich V, Seeck M, Grandjean D, Schwartz S, Vuilleumier P, Domínguez-Borràs J. Brain reactivity to emotion persists in NREM sleep and is associated with individual dream recall. Cereb Cortex Commun 2022; 3:tgac003. [PMID: 35174329 PMCID: PMC8844542 DOI: 10.1093/texcom/tgac003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/07/2022] [Accepted: 01/07/2022] [Indexed: 12/02/2022] Open
Abstract
The waking brain efficiently detects emotional signals to promote survival. However, emotion detection during sleep is poorly understood and may be influenced by individual sleep characteristics or neural reactivity. Notably, dream recall frequency has been associated with stimulus reactivity during sleep, with enhanced stimulus-driven responses in high vs. low recallers. Using electroencephalography (EEG), we characterized the neural responses of healthy individuals to emotional, neutral voices, and control stimuli, both during wakefulness and NREM sleep. Then, we tested how these responses varied with individual dream recall frequency. Event-related potentials (ERPs) differed for emotional vs. neutral voices, both in wakefulness and NREM. Likewise, EEG arousals (sleep perturbations) increased selectively after the emotional voices, indicating emotion reactivity. Interestingly, sleep ERP amplitude and arousals after emotional voices increased linearly with participants' dream recall frequency. Similar correlations with dream recall were observed for beta and sigma responses, but not for theta. In contrast, dream recall correlations were absent for neutral or control stimuli. Our results reveal that brain reactivity to affective salience is preserved during NREM and is selectively associated to individual memory for dreams. Our findings also suggest that emotion-specific reactivity during sleep, and not generalized alertness, may contribute to the encoding/retrieval of dreams.
Collapse
Affiliation(s)
- Maëva Moyne
- Campus Biotech, chemin des mines, 9 CH-1202 Geneva, Switzerland
- Department of Neuroscience, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland
| | - Guillaume Legendre
- Campus Biotech, chemin des mines, 9 CH-1202 Geneva, Switzerland
- Department of Neuroscience, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland
| | - Luc Arnal
- Campus Biotech, chemin des mines, 9 CH-1202 Geneva, Switzerland
- Department of Neuroscience, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland
| | - Samika Kumar
- Department of Psychology, University of Cambridge, Downing Street, Cambridge CB2 3EB, USA
| | - Virginie Sterpenich
- Campus Biotech, chemin des mines, 9 CH-1202 Geneva, Switzerland
- Department of Neuroscience, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland
| | - Margitta Seeck
- Department of Clinical Neuroscience, Geneva University Hospitals, 4 rue Gabrielle-Perret-Gentil 4, CH-1211 Geneva, Switzerland
- Department of Clinical Neuroscience, University of Geneva, 4 rue Gabrielle-Perret-Gentil 4, CH-1211 Geneva, Switzerland
| | - Didier Grandjean
- Campus Biotech, chemin des mines, 9 CH-1202 Geneva, Switzerland
- Department of Psychology, University of Geneva, Uni Mail, bd du Pont-d’Arve 40, CH-1211 Geneva, Switzerland
| | - Sophie Schwartz
- Campus Biotech, chemin des mines, 9 CH-1202 Geneva, Switzerland
- Department of Neuroscience, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland
- Center for Affective Sciences, CISA - chemin des mines 9, CH-1202 Geneva, Switzerland
| | - Patrik Vuilleumier
- Campus Biotech, chemin des mines, 9 CH-1202 Geneva, Switzerland
- Department of Neuroscience, University of Geneva, Rue Michel Servet 1, CH-1211 Geneva, Switzerland
- Center for Affective Sciences, CISA - chemin des mines 9, CH-1202 Geneva, Switzerland
| | - Judith Domínguez-Borràs
- Campus Biotech, chemin des mines, 9 CH-1202 Geneva, Switzerland
- Department of Clinical Neuroscience, University of Geneva, 4 rue Gabrielle-Perret-Gentil 4, CH-1211 Geneva, Switzerland
- Center for Affective Sciences, CISA - chemin des mines 9, CH-1202 Geneva, Switzerland
| |
Collapse
|
161
|
Soto-Icaza P, Beffara-Bret B, Vargas L, Aboitiz F, Billeke P. Differences in cortical processing of facial emotions in broader autism phenotype. PLoS One 2022; 17:e0262004. [PMID: 35041646 PMCID: PMC8765621 DOI: 10.1371/journal.pone.0262004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 12/15/2021] [Indexed: 11/25/2022] Open
Abstract
Autism Spectrum Disorder (ASD) is a heterogeneous condition that affects face perception. Evidence shows that there are differences in face perception associated with the processing of low spatial frequency (LSF) and high spatial frequency (HSF) of visual stimuli between non-symptomatic relatives of individuals with autism (broader autism phenotype, BAP) and typically developing individuals. However, the neural mechanisms involved in these differences are not fully understood. Here we tested whether face-sensitive event related potentials could serve as neuronal markers of differential spatial frequency processing, and whether these potentials could differentiate non-symptomatic parents of children with autism (pASD) from parents of typically developing children (pTD). To this end, we performed electroencephalographic recordings of both groups of parents while they had to recognize emotions of face pictures composed of the same or different emotions (happiness or anger) presented in different spatial frequencies. We found no significant differences in the accuracy between groups but lower amplitude modulation in the Late Positive Potential activity in pASD. Source analysis showed a difference in the right posterior part of the superior temporal region that correlated with ASD symptomatology of the child. These results reveal differences in brain processing of recognition of facial emotion in BAP that could be a precursor of ASD.
Collapse
Affiliation(s)
- Patricia Soto-Icaza
- Laboratorio de Neurociencia Social y Neuromodulación, Centro de Investigación en Complejidad Social (neuroCICS), Facultad de Gobierno, Universidad del Desarrollo, Santiago, Chile
| | | | | | - Francisco Aboitiz
- Laboratorio de Neurociencias Cognitivas, Departamento de Psiquiatría, Centro Interdisciplinario de Neurociencias, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo Billeke
- Laboratorio de Neurociencia Social y Neuromodulación, Centro de Investigación en Complejidad Social (neuroCICS), Facultad de Gobierno, Universidad del Desarrollo, Santiago, Chile
| |
Collapse
|
162
|
Frot M, Mauguière F, Garcia-Larrea L. Insular Dichotomy in the Implicit Detection of Emotions in Human Faces. Cereb Cortex 2022; 32:4215-4228. [PMID: 35029677 DOI: 10.1093/cercor/bhab477] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 11/03/2021] [Accepted: 11/23/2021] [Indexed: 12/17/2022] Open
Abstract
The functional roles of the insula diverge between its posterior portion (PI), mainly connected with somato-sensory and motor areas, and its anterior section (AI) connected with the frontal, limbic, and cingulate regions. We report intracranial recordings of local field evoked potentials from PI, AI, and the visual fusiform gyrus to a full array of emotional faces including pain while the individuals' attention was diverted from emotions. The fusiform gyrus and PI responded equally to all types of faces, including neutrals. Conversely, the AI responded only to emotional faces, maximally to pain and fear, while remaining insensitive to neutrals. The two insular sectors reacted with almost identical latency suggesting their parallel initial activation via distinct functional routes. The consistent responses to all emotions, together with the absence of response to neutral faces, suggest that early responses in the AI reflect the immediate arousal value and behavioral relevance of emotional stimuli, which may be subserved by "fast track" routes conveying coarse-spatial-frequency information via the superior colliculus and dorsal pulvinar. Such responses precede the conscious detection of the stimulus' precise signification and valence, which need network interaction and information exchange with other brain areas, for which the AI is an essentialhub.
Collapse
Affiliation(s)
- Maud Frot
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard, Bron 69677, France
| | - François Mauguière
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard, Bron 69677, France
| | - Luis Garcia-Larrea
- Central Integration of Pain (NeuroPain) Lab-Lyon Neuroscience Research Center, INSERM U1028, CNRS, UMR5292, Université Claude Bernard, Bron 69677, France
- Centre d'Evaluation et de Traitement de la Douleur, Hospices Civils de Lyon, Lyon 69003, France
| |
Collapse
|
163
|
Sambuco N. fMRI replicability during emotional scene viewing: Functional regions and sample size. Psychophysiology 2022; 59:e14000. [PMID: 35001394 DOI: 10.1111/psyp.14000] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/04/2021] [Accepted: 12/13/2021] [Indexed: 11/28/2022]
Abstract
Recent findings have questioned the replicability of functional magnetic resonance imaging (fMRI) in the study of affective processing, reporting low replicability of emotional enhancement during a face-matching task. However, poor replicability may instead reflect a lack of emotional engagement for face matching. In the current study, replicability of emotional enhancement was tested in a large (N = 160) sample when emotional engagement was assessed during pleasant, neutral, and unpleasant picture viewing, which reliably engages affective reactions in both the brain and the body. Replicability was computed using a subsampling technique, in which random sets of subjects of different sample sizes (N = 20, 40, 60, 80) were selected from the entire dataset, and replicability of emotional enhancement for peaks, clusters, and voxels were averaged across 500 permutations for each sample size. Consistent with previous findings, fMRI replicability increased with increasing sample size. On the other hand, even with relatively small samples, fMRI replicability for peaks, clusters, and voxels during emotional, compared to neutral, scene viewing was good to excellent. Importantly, replicability varied in different brain regions, with excellent replicability at both the cluster and peak level with an N of 40, at the most conservative threshold (p < .001), in the amygdala and the visual cortex. The data argue against general recommendations regarding sample size in fMRI studies of emotion, suggesting instead that degree of replicability depends on successful emotional engagement in task-related brain regions.
Collapse
Affiliation(s)
- Nicola Sambuco
- Center for the Study of Emotion and Attention, University of Florida, Gainesville, Florida, USA
| |
Collapse
|
164
|
March DS, Gaertner L, Olson MA. On the Automatic Nature of Threat: Physiological and Evaluative Reactions to Survival-Threats Outside Conscious Perception. AFFECTIVE SCIENCE 2022; 3:135-144. [PMID: 36046094 PMCID: PMC9382976 DOI: 10.1007/s42761-021-00090-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 10/27/2021] [Indexed: 12/12/2022]
Abstract
A neural architecture that preferentially processes immediate survival threats relative to other negatively and positively valenced stimuli presumably evolved to facilitate survival. The empirical literature on threat superiority, however, has suffered two problems: methodologically distinguishing threatening stimuli from negative stimuli and differentiating whether responses are sped and strengthened by threat superiority or delayed and diminished by conscious processing of nonthreatening stimuli. We addressed both problems in three within-subject studies that compared responses to empirically validated sets of threating, negative, positive, and neutral stimuli, and isolated threat superiority from the opposing effect of conscious attention by presenting stimuli outside conscious perception. Consistent with threat superiority, threatening stimuli elicited stronger skin-conductance (Study 1), startle-eyeblink (Study 2), and more negative downstream evaluative responses (Study 3) relative to the undifferentiated responses to negative, positive, and neutral stimuli. Supplementary Information The online version contains supplementary material available at 10.1007/s42761-021-00090-6.
Collapse
Affiliation(s)
- David S. March
- grid.255986.50000 0004 0472 0419Florida State University, Tallahassee, FL USA
| | - Lowell Gaertner
- grid.411461.70000 0001 2315 1184University of Tennessee, Knoxville, TN USA
| | - Michael A. Olson
- grid.411461.70000 0001 2315 1184University of Tennessee, Knoxville, TN USA
| |
Collapse
|
165
|
Xie M, Liu Z, Guo C. Effect of the congruity of emotional contexts at encoding on source memory: Evidence from ERPs. Int J Psychophysiol 2022; 173:45-57. [PMID: 34999142 DOI: 10.1016/j.ijpsycho.2022.01.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 12/15/2021] [Accepted: 01/03/2022] [Indexed: 11/25/2022]
Abstract
Emotion's influence on source memory has proven more elusive and the lack of studies investigates the effect of the congruent emotional contexts on source memory. Here, we investigated these issues using event-related potentials (ERPs) to assess emotional-induced neural correlates. During encoding, congruent word-picture (a word 'shoes' - a picture described shoes) and incongruent word-picture (a word 'pepper' - a picture described shoes) with a prompt (Common? or Natural?) were presented. At retrieval, participants indicated which prompts were concomitantly presented with the word during encoding. Behavioral results revealed that source memory accuracy was enhanced in the neutral contexts compared to the negative contexts, and enhanced in the incongruent condition relative to the congruent condition, suggesting that emotional contexts impaired source memory performance, and incongruent information enhanced source memory. ERPs results showed that early P2 old/new effect (150-250 ms) and FN400 old/new effect (300-450 ms) were observed for words with correct source that had been encoded in the congruent emotional contexts, and that a larger parietal old/new effect, between 500 and 700 ms, was observed for words with correct source that had been encoded in the incongruent condition than in the congruent condition, irrespective the nature of context. The ERPs results indicate that retrieval of source details for the associated emotionally congruent information supports the idea that emotional events could attract more attentional resources, and reflects the contribution of familiarity-based process. Meanwhile, retrieval of source details for the associated incongruent information reflects a stronger contribution of recollection-based process.
Collapse
Affiliation(s)
- Miaomiao Xie
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing, PR China
| | - Zejun Liu
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing, PR China
| | - Chunyan Guo
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, Capital Normal University, Beijing, PR China.
| |
Collapse
|
166
|
Fuchs TA, Vaughn CB, Benedict RHB, Weinstock-Guttman B, Bergsland N, Jakimovski D, Ramasamy D, Zivadinov R, Dwyer MG. Patient-Reported Outcome Severity and Emotional Salience Network Disruption in Multiple Sclerosis. Brain Imaging Behav 2022; 16:1252-1259. [PMID: 34985619 DOI: 10.1007/s11682-021-00614-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Overall burden of white matter damage is associated with increased self-report fatigue severity in people with multiple sclerosis. However, a paradoxically opposite association was reported for white matter damage to tracts in specific subnetworks including the amygdala, temporal pole, and insula. Based on neuroanatomical principles and other data from the literature, we hypothesized that these results might be indicative of a broader relationship between damage to these subnetworks and impaired recognition of negative emotional salience central to patient-reported outcomes. OBJECTIVE We examined whether damage in the same previously-identified subnetworks is also associated with lower self-report depressive symptoms, something which may be decreased in individuals with impaired recognition of negative emotional salience. Other patient characteristics were also explored. METHODS In a cohort of 137 people with multiple sclerosis, we measured location-specific network white matter tract damage in the proposed negative emotional salience network, along with self-report severity of depressive symptoms and cognitive problems, personality characteristics, objective cognitive performance, and physical disability. We applied regression analyses, accounting for lesion burden, to explore the relationship between damage in the proposed negative emotional salience network and these factors. RESULTS We found disruption within the negative emotional salience network is associated with lower self-report depressive symptoms (β = -0.277, p = 0.036), cognitive complaints (r = -0.196, p = 0.024) and personality trait Neuroticism (r = -0.179, p = 0.042). In contrast, damage within this network was not significantly associated with objective cognitive processing speed, personality trait Openness, or physical disability. CONCLUSION The identified network may be a generalizable network which corresponds to the recognition of negative emotional salience, but not to objective factors such as processing speed and physical disability. Damage to this network may paradoxically buffer against negative emotional perception of symptom severity, central to patient-reported outcomes.
Collapse
Affiliation(s)
- Tom A Fuchs
- Jacobs Multiple Sclerosis Center for Treatment and Research, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA.
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA.
| | - Caila B Vaughn
- Jacobs Multiple Sclerosis Center for Treatment and Research, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
| | - Ralph H B Benedict
- Jacobs Multiple Sclerosis Center for Treatment and Research, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
| | - Bianca Weinstock-Guttman
- Jacobs Multiple Sclerosis Center for Treatment and Research, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
| | - Niels Bergsland
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
- IRCSS, Fondazione Don Carlo Gnocchi, Milan, Italy
| | - Dejan Jakimovski
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
| | - Deepa Ramasamy
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
| | - Robert Zivadinov
- Jacobs Multiple Sclerosis Center for Treatment and Research, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
- Center for Biomedical Imaging, Clinical Translational Science Institute, University at Buffalo, State University of New York (SUNY), Buffalo, NY, USA
| | - Michael G Dwyer
- Jacobs Multiple Sclerosis Center for Treatment and Research, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
- Buffalo Neuroimaging Analysis Center, Department of Neurology, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York (SUNY), 100 High St, Buffalo, NY, 14203, USA
- Center for Biomedical Imaging, Clinical Translational Science Institute, University at Buffalo, State University of New York (SUNY), Buffalo, NY, USA
| |
Collapse
|
167
|
Gillette KD, Phillips EM, Dilks DD, Berns GS. Using Live and Video Stimuli to Localize Face and Object Processing Regions of the Canine Brain. Animals (Basel) 2022; 12:ani12010108. [PMID: 35011214 PMCID: PMC8749767 DOI: 10.3390/ani12010108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 08/04/2021] [Accepted: 12/28/2021] [Indexed: 11/16/2022] Open
Abstract
Simple Summary We showed dogs and humans live-action stimuli (actors and objects) and videos of the same stimuli during fMRI to measure the equivalency of live and two-dimensional stimuli in the dog’s brain. We found that video stimuli were effective in defining face and object regions. However, the human fusiform face area and posterior superior temporal sulcus, and the analogous area in the dog brain, appeared to respond preferentially to live stimuli. In object regions, there was not a significantly different response between live and video stimuli. Abstract Previous research to localize face areas in dogs’ brains has generally relied on static images or videos. However, most dogs do not naturally engage with two-dimensional images, raising the question of whether dogs perceive such images as representations of real faces and objects. To measure the equivalency of live and two-dimensional stimuli in the dog’s brain, during functional magnetic resonance imaging (fMRI) we presented dogs and humans with live-action stimuli (actors and objects) as well as videos of the same actors and objects. The dogs (n = 7) and humans (n = 5) were presented with 20 s blocks of faces and objects in random order. In dogs, we found significant areas of increased activation in the putative dog face area, and in humans, we found significant areas of increased activation in the fusiform face area to both live and video stimuli. In both dogs and humans, we found areas of significant activation in the posterior superior temporal sulcus (ectosylvian fissure in dogs) and the lateral occipital complex (entolateral gyrus in dogs) to both live and video stimuli. Of these regions of interest, only the area along the ectosylvian fissure in dogs showed significantly more activation to live faces than to video faces, whereas, in humans, both the fusiform face area and posterior superior temporal sulcus responded significantly more to live conditions than video conditions. However, using the video conditions alone, we were able to localize all regions of interest in both dogs and humans. Therefore, videos can be used to localize these regions of interest, though live conditions may be more salient.
Collapse
|
168
|
Kenwood MM, Kalin NH, Barbas H. The prefrontal cortex, pathological anxiety, and anxiety disorders. Neuropsychopharmacology 2022; 47:260-275. [PMID: 34400783 PMCID: PMC8617307 DOI: 10.1038/s41386-021-01109-z] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 07/06/2021] [Accepted: 07/08/2021] [Indexed: 02/07/2023]
Abstract
Anxiety is experienced in response to threats that are distal or uncertain, involving changes in one's subjective state, autonomic responses, and behavior. Defensive and physiologic responses to threats that involve the amygdala and brainstem are conserved across species. While anxiety responses typically serve an adaptive purpose, when excessive, unregulated, and generalized, they can become maladaptive, leading to distress and avoidance of potentially threatening situations. In primates, anxiety can be regulated by the prefrontal cortex (PFC), which has expanded in evolution. This prefrontal expansion is thought to underlie primates' increased capacity to engage high-level regulatory strategies aimed at coping with and modifying the experience of anxiety. The specialized primate lateral, medial, and orbital PFC sectors are connected with association and limbic cortices, the latter of which are connected with the amygdala and brainstem autonomic structures that underlie emotional and physiological arousal. PFC pathways that interface with distinct inhibitory systems within the cortex, the amygdala, or the thalamus can regulate responses by modulating neuronal output. Within the PFC, pathways connecting cortical regions are poised to reduce noise and enhance signals for cognitive operations that regulate anxiety processing and autonomic drive. Specialized PFC pathways to the inhibitory thalamic reticular nucleus suggest a mechanism to allow passage of relevant signals from thalamus to cortex, and in the amygdala to modulate the output to autonomic structures. Disruption of specific nodes within the PFC that interface with inhibitory systems can affect the negative bias, failure to regulate autonomic arousal, and avoidance that characterize anxiety disorders.
Collapse
Affiliation(s)
- Margaux M Kenwood
- Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Neuroscience Training Program at University of Wisconsin-Madison, Madison, USA
| | - Ned H Kalin
- Department of Psychiatry, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Neuroscience Training Program at University of Wisconsin-Madison, Madison, USA
- Wisconsin National Primate Center, Madison, WI, USA
| | - Helen Barbas
- Neural Systems Laboratory, Department of Health Sciences, Boston University, Boston, MA, USA.
- Department of Anatomy and Neurobiology, Boston University School of Medicine, Boston, MA, USA.
| |
Collapse
|
169
|
Domínguez-Borràs J, Vuilleumier P. Amygdala function in emotion, cognition, and behavior. HANDBOOK OF CLINICAL NEUROLOGY 2022; 187:359-380. [PMID: 35964983 DOI: 10.1016/b978-0-12-823493-8.00015-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The amygdala is a core structure in the anterior medial temporal lobe, with an important role in several brain functions involving memory, emotion, perception, social cognition, and even awareness. As a key brain structure for saliency detection, it triggers and controls widespread modulatory signals onto multiple areas of the brain, with a great impact on numerous aspects of adaptive behavior. Here we discuss the neural mechanisms underlying these functions, as established by animal and human research, including insights provided in both healthy and pathological conditions.
Collapse
Affiliation(s)
- Judith Domínguez-Borràs
- Department of Clinical Psychology and Psychobiology & Institute of Neurosciences, University of Barcelona, Barcelona, Spain
| | - Patrik Vuilleumier
- Department of Neuroscience and Center for Affective Sciences, University of Geneva, Geneva, Switzerland.
| |
Collapse
|
170
|
Kanel D, Vanes LD, Ball G, Hadaya L, Falconer S, Counsell SJ, Edwards AD, Nosarti C. OUP accepted manuscript. Brain Commun 2022; 4:fcac009. [PMID: 35178519 PMCID: PMC8846580 DOI: 10.1093/braincomms/fcac009] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 11/04/2021] [Accepted: 01/24/2022] [Indexed: 11/13/2022] Open
Abstract
Very preterm children are more likely to exhibit difficulties in socio-emotional processing than their term-born peers. Emerging socio-emotional problems may be partly due to alterations in limbic system development associated with infants’ early transition to extrauterine life. The amygdala is a key structure in this system and plays a critical role in various aspects of socio-emotional development, including emotion regulation. The current study tested the hypothesis that amygdala resting-state functional connectivity at term-equivalent age would be associated with socio-emotional outcomes in childhood. Participants were 129 very preterm infants (<33 weeks' gestation) who underwent resting-state functional MRI at term and received a neurodevelopmental assessment at 4–7 years (median = 4.64). Using the left and right amygdalae as seed regions, we investigated associations between whole-brain seed-based functional connectivity and three socio-emotional outcome factors which were derived using exploratory factor analysis (Emotion Moderation, Social Function and Empathy), controlling for sex, neonatal sickness, post-menstrual age at scan and social risk. Childhood Emotion Moderation scores were significantly associated with neonatal resting-state functional connectivity of the right amygdala with right parahippocampal gyrus and right middle occipital gyrus, as well as with functional connectivity of the left amygdala with the right thalamus. No significant associations were found between amygdalar resting-state functional connectivity and either Social Function or Empathy scores. The current findings show that amygdalar functional connectivity assessed at term is associated with later socio-emotional outcomes in very preterm children.
Collapse
Affiliation(s)
- Dana Kanel
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering & Imaging Sciences, King’s College London, London, UK
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Lucy D. Vanes
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering & Imaging Sciences, King’s College London, London, UK
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Gareth Ball
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering & Imaging Sciences, King’s College London, London, UK
- Developmental Imaging, Murdoch Children’s Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Laila Hadaya
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering & Imaging Sciences, King’s College London, London, UK
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, UK
| | - Shona Falconer
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering & Imaging Sciences, King’s College London, London, UK
| | - Serena J. Counsell
- Centre for the Developing Brain, School of Imaging Sciences & Biomedical Engineering & Imaging Sciences, King’s College London, London, UK
| | | | - Chiara Nosarti
- Correspondence to: Chiara Nosarti Centre for the Developing Brain School of Bioengineering and Imaging Sciences King’s College London and Evelina Children’s Hospital London SE1 7EH, UK E-mail:
| |
Collapse
|
171
|
Sladky R, Hahn A, Karl IL, Geissberger N, Kranz GS, Tik M, Kraus C, Pfabigan DM, Gartus A, Lanzenberger R, Lamm C, Windischberger C. Dynamic Causal Modeling of the Prefrontal/Amygdala Network During Processing of Emotional Faces. Brain Connect 2021; 12:670-682. [PMID: 34605671 DOI: 10.1089/brain.2021.0073] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Introduction: The importance of the amygdala/medial orbitofrontal cortex (OFC) network during processing of emotional stimuli, emotional faces in particular, is well established. This premise is supported by converging evidence from animal models, human neuroanatomical results, and neuroimaging studies. However, there is missing evidence from human brain connectivity studies that the OFC and no other prefrontal brain areas such as the dorsolateral prefrontal cortex (DLPFC) or ventrolateral prefrontal cortex (VLPFC) are responsible for amygdala regulation in the functional context of emotional face stimuli. Methods: Dynamic causal modeling of ultrahigh-field functional magnetic resonance imaging data acquired at 7 Tesla in 38 healthy subjects and a well-established paradigm for emotional face processing were used to assess the central role of the OFC to provide empirical validation for the assumed network architecture. Results: Using Bayesian model selection, it is demonstrated that indeed the OFC, and not the VLPFC and the DLPFC, downregulates amygdala activation during the emotion discrimination task. In addition, Bayesian model averaging group results were rigorously tested using bootstrapping, further corroborating these findings and providing an estimator for robustness and optimal sample sizes. Discussion: While it is true that VLPFC and DLPFC are relevant for the processing of emotional faces and are connected to the OFC, the OFC appears to be a central hub for the prefrontal/amygdala interaction.
Collapse
Affiliation(s)
- Ronald Sladky
- MR Center of Excellence, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria.,Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria
| | - Andreas Hahn
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Inga-Lisa Karl
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria
| | - Nicole Geissberger
- MR Center of Excellence, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| | - Georg S Kranz
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.,Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, China.,The State Key Laboratory of Brain and Cognitive Science, The University of Hong Kong, Hong Kong, China
| | - Martin Tik
- MR Center of Excellence, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| | - Christoph Kraus
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Daniela M Pfabigan
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria
| | - Andreas Gartus
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria
| | - Rupert Lanzenberger
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Claus Lamm
- Department of Cognition, Emotion, and Methods in Psychology, Faculty of Psychology, University of Vienna, Vienna, Austria
| | - Christian Windischberger
- MR Center of Excellence, Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| |
Collapse
|
172
|
Snakes vs. Guns: a Systematic Review of Comparisons Between Phylogenetic and Ontogenetic Threats. ADAPTIVE HUMAN BEHAVIOR AND PHYSIOLOGY 2021. [DOI: 10.1007/s40750-021-00181-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
173
|
Hong W, Li M, Liu Z, Li X, Huai H, Jia D, Jin W, Zhao Z, Liu L, Li J, Sun F, Xu R, Zhao Z. Heterogeneous alterations in thalamic subfields in major depression disorder. J Affect Disord 2021; 295:1079-1086. [PMID: 34706417 DOI: 10.1016/j.jad.2021.08.115] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 07/30/2021] [Accepted: 08/28/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND It is well known that the thalamus is not a unitary and homogeneous entity but a complex and highly connected archeocortical structure. Although many neuroimaging studies have reported alterations in the thalamus in major depressive disorder (MDD), the structural alterations in thalamic subfields remain unclear. This study aimed to investigate changes in gray matter volume (GMV) in thalamic subfields in MDD patients. METHODS The present study included structural images of 848 MDD patients and 794 age-matched normal controls (NC) from 17 study sites of the REST-meta-MDD consortium. We performed voxel-based morphometric analyses to calculate the GMV in the entire thalamus and its subfields using three different automated anatomical labeling atlases and subsequently compared the differences between first-episode drug-naïve major depressive disorder (FEDN), recurrent major depressive disorder (RMDD), and NC groups. We also evaluated the relationships between thalamic GMV and clinical symptoms in MDD patients. RESULTS Compared to NC, the FEDN patients showed increased GMV in thalamic subfields but not in the entire thalamus, while RMDD patients showed no significant alterations in GMV in the entire thalamus and its subfields. Moreover, the mean GMV in the right anterior thalamus and left anteroventral thalamus in RMDD patients were mildly positively correlated with the Hamilton Anxiety Rating Scale scores. LIMITATIONS The main limitations are a single-modal analysis based on T1-weighted MR images and a cross-sectional design. CONCLUSIONS Our findings suggest that FEDN and RMDD patients show heterogeneous alterations across thalamic subfields, which may help us understand the pathophysiological mechanisms of MDD.
Collapse
Affiliation(s)
- Wenjun Hong
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Ming Li
- Department of Radiology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - Zaixing Liu
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Xiguang Li
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Hongbo Huai
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Dongqi Jia
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Wei Jin
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Zhigang Zhao
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Liang Liu
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Jiyuan Li
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Fenfen Sun
- Center for Brain, Mind, and Education, Shaoxing University, Shaoxing 312000, China.
| | - Rong Xu
- Department of Rehabilitation Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China.
| | - Zhiyong Zhao
- Key Laboratory for Biomedical Engineering of Ministry of Education, Department of Biomedical Engineering, College of Biomedical Engineering and Instrument Science, Zhejiang University, Hangzhou, China
| |
Collapse
|
174
|
Identifying brain regions supporting amygdalar functionality: Application of a novel graph theory technique. Neuroimage 2021; 244:118614. [PMID: 34571162 DOI: 10.1016/j.neuroimage.2021.118614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 09/21/2021] [Indexed: 11/22/2022] Open
Abstract
Effective amygdalar functionality depends on the concerted activity of a complex network of regions. Thus, the role of the amygdala cannot be fully understood without identifying the set of brain structures that allow the processes performed by the amygdala to emerge. However, this identification has yet to occur, hampering our ability to understand both normative and pathological processes that rely on the amygdala. We developed and applied novel graph theory methods to diffusion-based anatomical networks in a large sample (n = 1,052, 54.28% female, mean age=28.75) to identify nodes that critically support amygdalar interactions with the larger brain network. We examined three graph properties, each indexing a different emergent aspect of amygdalar network communication: current-flow betweenness centrality (amygdalar influence on information flowing between other pairs of nodes), node communicability (clarity of communication between the amygdala and other nodes), and subgraph centrality (amygdalar influence over local network processing). Findings demonstrate that each of these aspects of amygdalar communication is associated with separable sets of regions and, in some cases, these sets map onto previously identified sub-circuits. For example, betweenness and communicability were each associated with different sub-circuits that have been identified in previous work as supporting distinct aspects of memory-guided behavior. Other regions identified span basic (e.g., visual cortex) to higher-order (e.g., insula) sensory processing and executive functions (e.g., dorsolateral prefrontal cortex). Present findings expand our current understanding of amygdalar function by showing that there is no single 'amygdala network', but rather multiple networks, each supporting different modes of amygdalar interaction with the larger brain network. Additionally, our novel method allowed for the identification of how such regions support the amygdala, which has not been previously explored.
Collapse
|
175
|
Dufford AJ, Spann M, Scheinost D. How prenatal exposures shape the infant brain: Insights from infant neuroimaging studies. Neurosci Biobehav Rev 2021; 131:47-58. [PMID: 34536461 DOI: 10.1016/j.neubiorev.2021.09.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 07/30/2021] [Accepted: 09/12/2021] [Indexed: 10/20/2022]
Abstract
Brain development during the prenatal period is rapid and unparalleled by any other time during development. Biological systems undergoing rapid development are at higher risk for disorganizing influences. Therefore, certain prenatal exposures impact brain development, increasing risk for negative neurodevelopmental outcome. While prenatal exposures have been associated with cognitive and behavioral outcomes later in life, the underlying macroscopic brain pathways remain unclear. Here, we review magnetic resonance imaging (MRI) studies investigating the association between prenatal exposures and infant brain development focusing on prenatal exposures via maternal physical health factors, maternal mental health factors, and maternal drug and medication use. Further, we discuss the need for studies to consider multiple prenatal exposures in parallel and suggest future directions for this body of research.
Collapse
Affiliation(s)
| | - Marisa Spann
- Columbia University Irving Medical Center, 622 West 168th Street, New York, NY, 10032, USA
| | - Dustin Scheinost
- Child Study Center, Yale School of Medicine, New Haven, CT, USA; Department of Radiology and Biomedical Imaging, Yale School of Medicine, USA; Department of Statistics and Data Science, Yale University, New Haven, CT, USA; Interdepartmental Neuroscience Program, Yale University, New Haven, CT, USA
| |
Collapse
|
176
|
Tsikandilakis M, Yu Z, Kausel L, Boncompte G, Lanfranco RC, Oxner M, Bali P, Urale Leong P, Qing M, Paterakis G, Caci S, Milbank A, Mevel PA, Carmel D, Madan C, Derrfuss J, Chapman P. "There Is No (Where a) Face Like Home": Recognition and Appraisal Responses to Masked Facial Dialects of Emotion in Four Different National Cultures. Perception 2021; 50:1027-1055. [PMID: 34806492 DOI: 10.1177/03010066211055983] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The theory of universal emotions suggests that certain emotions such as fear, anger, disgust, sadness, surprise and happiness can be encountered cross-culturally. These emotions are expressed using specific facial movements that enable human communication. More recently, theoretical and empirical models have been used to propose that universal emotions could be expressed via discretely different facial movements in different cultures due to the non-convergent social evolution that takes place in different geographical areas. This has prompted the consideration that own-culture emotional faces have distinct evolutionary important sociobiological value and can be processed automatically, and without conscious awareness. In this paper, we tested this hypothesis using backward masking. We showed, in two different experiments per country of origin, to participants in Britain, Chile, New Zealand and Singapore, backward masked own and other-culture emotional faces. We assessed detection and recognition performance, and self-reports for emotionality and familiarity. We presented thorough cross-cultural experimental evidence that when using Bayesian assessment of non-parametric receiver operating characteristics and hit-versus-miss detection and recognition response analyses, masked faces showing own cultural dialects of emotion were rated higher for emotionality and familiarity compared to other-culture emotional faces and that this effect involved conscious awareness.
Collapse
Affiliation(s)
- Myron Tsikandilakis
- School of Psychology, University of Nottingham.,Medical School, Faculty of Medicine and Health Sciences, 6123University of Nottingham
| | - Zhaoliang Yu
- Department of Psychology, National University of Singapore.,Department of Psychology, Wuhan University, China
| | - Leonie Kausel
- School of Medicine, Pontificia Universidad Católica de Chile.,School of Psychology, Pontificia Universidad Católica de Chile
| | - Gonzalo Boncompte
- Universidad del Desarrollo, Centro de Investigación en Complejidad Social.,School of Psychology, Pontificia Universidad Católica de Chile
| | - Renzo C Lanfranco
- Department of Psychology, The University of Edinburgh.,Department of Neuroscience, Karolinska Institutet
| | - Matt Oxner
- School of Psychology, The University of Auckland.,University of Leipzig, Institute of Psychology
| | | | | | - Man Qing
- Department of Psychology, National University of Singapore
| | | | | | | | | | - David Carmel
- Victoria University of Wellington, School of Psychology
| | | | | | | |
Collapse
|
177
|
Gao J, Yang X, Chen X, Liu R, Wang P, Meng F, Li Z, Zhou Y. Resting-state functional connectivity of the amygdala subregions in unmedicated patients with obsessive-compulsive disorder before and after cognitive behavioural therapy. J Psychiatry Neurosci 2021; 46:E628-E638. [PMID: 34785511 PMCID: PMC8598242 DOI: 10.1503/jpn.210084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Revised: 08/03/2021] [Accepted: 08/25/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Cognitive behavioural therapy (CBT) is considered an effective first-line treatment for obsessive-compulsive disorder (OCD). However, the neural basis of CBT for OCD has not yet been elucidated. The role of the amygdala in OCD and its functional coupling with the cerebral cortex have received increasing attention, and may provide new understanding of the neural basis of CBT for OCD. METHODS We acquired baseline resting-state functional MRI (fMRI) scans from 45 unmedicated patients with OCD and 40 healthy controls; we then acquired another wave of resting-state fMRI scans from the patients with OCD after 12 weeks of CBT. We performed seed-based resting-state functional connectivity analyses of the amygdala subregions to examine changes in patients with OCD as a result of CBT. RESULTS Compared to healthy controls, patients with OCD showed significantly increased resting-state functional connectivity at baseline between the left basolateral amygdala and the right middle frontal gyrus, and between the superficial amygdala and the right cuneus. In patients with OCD who responded to CBT, we found decreased resting-state functional connectivity after CBT between the amygdala subregions and the visual association cortices and increased resting-state functional connectivity between the amygdala subregions and the right inferior parietal lobe. Furthermore, these changes in resting-state functional connectivity were positively associated with changes in scores on the compulsion or obsession subscales of the Yale-Brown Obsessive-Compulsive Scale. LIMITATIONS Because of the lack of a second scan for healthy controls after 12 weeks, our results may have been confounded by other variables. CONCLUSION Our findings yield insights into the pathophysiology of OCD; they also reveal the potential neural changes elicited by CBT, and thus have implications for guiding effective treatment strategies with CBT for OCD.
Collapse
|
178
|
Mercer Lindsay N, Chen C, Gilam G, Mackey S, Scherrer G. Brain circuits for pain and its treatment. Sci Transl Med 2021; 13:eabj7360. [PMID: 34757810 DOI: 10.1126/scitranslmed.abj7360] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
[Figure: see text].
Collapse
Affiliation(s)
- Nicole Mercer Lindsay
- Department of Cell Biology and Physiology, UNC Neuroscience Center, Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.,Department of Biology, CNC Program, Department of Applied Physics, Stanford University, Stanford, CA 94305, USA
| | - Chong Chen
- Department of Cell Biology and Physiology, UNC Neuroscience Center, Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Gadi Gilam
- Division of Pain Medicine, Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Palo Alto, CA 94304, USA
| | - Sean Mackey
- Division of Pain Medicine, Department of Anesthesiology, Perioperative, and Pain Medicine, Stanford University School of Medicine, Palo Alto, CA 94304, USA
| | - Grégory Scherrer
- Department of Cell Biology and Physiology, UNC Neuroscience Center, Department of Pharmacology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.,New York Stem Cell Foundation-Robertson Investigator, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| |
Collapse
|
179
|
The role of negative emotions in sex differences in pain sensitivity. Neuroimage 2021; 245:118685. [PMID: 34740794 DOI: 10.1016/j.neuroimage.2021.118685] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/24/2021] [Accepted: 10/25/2021] [Indexed: 01/09/2023] Open
Abstract
Pain perception varies widely among individuals due to the varying degrees of biological, psychological, and social factors. Notably, sex differences in pain sensitivity have been consistently observed in various experimental and clinical investigations. However, the neuropsychological mechanism underlying sex differences in pain sensitivity remains unclear. To address this issue, we quantified pain sensitivity (i.e., pain threshold and tolerance) using the cold pressure test and negative emotions (i.e., pain-related fear, pain-related anxiety, trait anxiety, and depression) using well-established questionnaires and collected magnetic resonance imaging (MRI) data (i.e., high-resolution T1 structural images and resting-state functional images) from 450 healthy subjects. We observed that, as compared to males, females exhibited lower pain threshold and tolerance. Notably, sex differences in pain sensitivity were mediated by pain-related fear and anxiety. Specifically, pain-related fear and anxiety were the complementary mediators of the relationship between sex and pain threshold, and they were the indirect-only mediators of the relationship between sex and pain tolerance. Besides, structural MRI data revealed that the amygdala subnuclei (i.e., the lateral and basal nuclei in the left hemisphere) volumes were the complementary mediators of the relationship between sex and pain-related fear, which further influenced pain sensitivity. Altogether, our results provided a comprehensive picture of how negative emotions (especially pain-related negative emotions) and related brain structures (especially the amygdala) contribute to sex differences in pain sensitivity. These results deepen our understanding of the neuropsychological underpinnings of sex differences in pain sensitivity, which is important to tailor a personalized method for treating pain according to sex and the level of pain-related negative emotions for patients with painful conditions.
Collapse
|
180
|
Sambuco N. Sex differences in the aging brain? A voxel-based morphometry analysis of the hippocampus and the amygdala. Neuroreport 2021; 32:1320-1324. [PMID: 34554939 DOI: 10.1097/wnr.0000000000001728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES Volumetric reductions in the hippocampus and the amygdala are considered a hallmark for many psychiatric and neurodegenerative disorders. Because brain atrophy is often observed in disorders that have a higher prevalence in females than males, it has been proposed that sex differences in the aging brain represent a vulnerability factor for developing more severe psychiatric conditions. METHODS Sexual dimorphism was assessed in the amygdala volume and hippocampal volume in a large sample (N = 554) of healthy individuals ranging from 20 to 79 years old, using structural brain data available from a public dataset. RESULTS In both the hippocampus and the amygdala, a quadratic association was found between age and brain volume. Using uncorrected data for head size [total intracranial volume (TIV)], males clearly demonstrated larger amygdala and hippocampal volume across all ages, and an interaction between age and sex in the hippocampus supported the hypothesis of accelerated atrophy in the hippocampus in later life (60-79 years old). However, when volumetric data adjusted for TIV were used, sex differences were not observed in the hippocampus nor the amygdala. CONCLUSION These findings support the extensive series of studies suggesting that sex differences in brain volume are likely related to the confounding effect of head size. While continued effort is allocated to identify sex-related biomarkers, increasing evidence suggests that sexual dimorphism in the hippocampus or the amygdala does not appear to be the primary candidates for precision medicine to identify sex-related biomarkers that index potential vulnerabilities.
Collapse
Affiliation(s)
- Nicola Sambuco
- Department of Clinical and Health Psychology, College of Public Health and Health Professions, University of Florida, Gainesville, Florida, USA
| |
Collapse
|
181
|
Spiteri S, Crewther D. Neural Mechanisms of Visual Motion Anomalies in Autism: A Two-Decade Update and Novel Aetiology. Front Neurosci 2021; 15:756841. [PMID: 34790092 PMCID: PMC8591069 DOI: 10.3389/fnins.2021.756841] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Accepted: 10/11/2021] [Indexed: 11/13/2022] Open
Abstract
The 21st century has seen dramatic changes in our understanding of the visual physio-perceptual anomalies of autism and also in the structure and development of the primate visual system. This review covers the past 20 years of research into motion perceptual/dorsal stream anomalies in autism, as well as new understanding of the development of primate vision. The convergence of this literature allows a novel developmental hypothesis to explain the physiological and perceptual differences of the broad autistic spectrum. Central to these observations is the development of motion areas MT+, the seat of the dorsal cortical stream, central area of pre-attentional processing as well as being an anchor of binocular vision for 3D action. Such development normally occurs via a transfer of thalamic drive from the inferior pulvinar → MT to the anatomically stronger but later-developing LGN → V1 → MT connection. We propose that autistic variation arises from a slowing in the normal developmental attenuation of the pulvinar → MT pathway. We suggest that this is caused by a hyperactive amygdala → thalamic reticular nucleus circuit increasing activity in the PIm → MT via response gain modulation of the pulvinar and hence altering synaptic competition in area MT. We explore the probable timing of transfer in dominance of human MT from pulvinar to LGN/V1 driving circuitry and discuss the implications of the main hypothesis.
Collapse
Affiliation(s)
- Samuel Spiteri
- Centre for Human Psychopharmacology, Swinburne University of Technology, Melbourne, VIC, Australia
| | | |
Collapse
|
182
|
Trofimova I. Functional Constructivism Approach to Multilevel Nature of Bio-Behavioral Diversity. Front Psychiatry 2021; 12:641286. [PMID: 34777031 PMCID: PMC8578849 DOI: 10.3389/fpsyt.2021.641286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 09/07/2021] [Indexed: 12/20/2022] Open
Abstract
Attempts to revise the existing classifications of psychiatric disorders (DSM and ICD) continue and highlight a crucial need for the identification of biomarkers underlying symptoms of psychopathology. The present review highlights the benefits of using a Functional Constructivism approach in the analysis of the functionality of the main neurotransmitters. This approach explores the idea that behavior is neither reactive nor pro-active, but constructive and generative, being a transient selection of multiple degrees of freedom in perception and actions. This review briefly describes main consensus points in neuroscience related to the functionality of eight neurochemical ensembles, summarized as a part of the neurochemical model Functional Ensemble of Temperament (FET). None of the FET components is represented by a single neurotransmitter; all neurochemical teams have specific functionality in selection of behavioral degrees of freedom and stages of action construction. The review demonstrates the possibility of unifying taxonomies of temperament and classifications of psychiatric disorders and presenting these taxonomies formally and systematically. The paper also highlights the multi-level nature of regulation of consistent bio-behavioral individual differences, in line with the concepts of diagonal evolution (proposed earlier) and Specialized Extended Phenotype.
Collapse
Affiliation(s)
- Irina Trofimova
- Laboratory of Collective Intelligence, Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
| |
Collapse
|
183
|
van Dyck LE, Kwitt R, Denzler SJ, Gruber WR. Comparing Object Recognition in Humans and Deep Convolutional Neural Networks-An Eye Tracking Study. Front Neurosci 2021; 15:750639. [PMID: 34690686 PMCID: PMC8526843 DOI: 10.3389/fnins.2021.750639] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/16/2021] [Indexed: 11/30/2022] Open
Abstract
Deep convolutional neural networks (DCNNs) and the ventral visual pathway share vast architectural and functional similarities in visual challenges such as object recognition. Recent insights have demonstrated that both hierarchical cascades can be compared in terms of both exerted behavior and underlying activation. However, these approaches ignore key differences in spatial priorities of information processing. In this proof-of-concept study, we demonstrate a comparison of human observers (N = 45) and three feedforward DCNNs through eye tracking and saliency maps. The results reveal fundamentally different resolutions in both visualization methods that need to be considered for an insightful comparison. Moreover, we provide evidence that a DCNN with biologically plausible receptive field sizes called vNet reveals higher agreement with human viewing behavior as contrasted with a standard ResNet architecture. We find that image-specific factors such as category, animacy, arousal, and valence have a direct link to the agreement of spatial object recognition priorities in humans and DCNNs, while other measures such as difficulty and general image properties do not. With this approach, we try to open up new perspectives at the intersection of biological and computer vision research.
Collapse
Affiliation(s)
- Leonard Elia van Dyck
- Department of Psychology, University of Salzburg, Salzburg, Austria.,Center for Cognitive Neuroscience, University of Salzburg, Salzburg, Austria
| | - Roland Kwitt
- Department of Computer Science, University of Salzburg, Salzburg, Austria
| | | | - Walter Roland Gruber
- Department of Psychology, University of Salzburg, Salzburg, Austria.,Center for Cognitive Neuroscience, University of Salzburg, Salzburg, Austria
| |
Collapse
|
184
|
da Silva RCR, de Carvalho RLS, Dourado MCN. Deficits in emotion processing in Alzheimer's disease: a systematic review. Dement Neuropsychol 2021; 15:314-330. [PMID: 34630919 PMCID: PMC8485650 DOI: 10.1590/1980-57642021dn15-030003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/12/2021] [Indexed: 11/26/2022] Open
Abstract
Emotional processing involves the ability of the individual to infer emotional information. There is no consensus about how Alzheimer’s disease (AD) affects emotional processing. Objective: Our aim is to systematically review the impact of AD on emotion processing.
Collapse
|
185
|
Chow A, Quan Y, Chui C, Itier RJ, Thompson B. Orienting of covert attention by neutral and emotional gaze cues appears to be unaffected by mild to moderate amblyopia. J Vis 2021; 21:5. [PMID: 34623398 PMCID: PMC8504194 DOI: 10.1167/jov.21.11.5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Amblyopia is a developmental disorder of vision associated with higher-order visual attention deficits. We explored whether amblyopia affects the orienting of covert spatial attention by measuring the magnitude of the gaze cueing effect from emotional faces. Gaze and emotion cues are key components of social attention. Participants with normal vision (n = 30), anisometropic (n = 7) or strabismic/mixed (n = 5) amblyopia performed a cued peripheral target detection task under monocular and binocular viewing conditions. The cue consisted of a centrally presented face with left or right gaze (50% validity to target location) and a fearful, happy, or neutral expression. The magnitude of spatial cueing was computed as the reaction time difference between congruent and incongruent trials for each expression. Fearful facial expressions oriented spatial attention significantly more than happy or neutral expressions. The magnitude of the gaze cueing effect in our cohort of mild-to-moderate amblyopia was comparable to that in normal vision and was not correlated with the severity of amblyopia. There were no statistical group or amblyopia subtype differences for reaction time in any viewing condition. These results place constraints on the range of attentional mechanisms affected by amblyopia and possibly suggest normal covert processing of emotional face stimuli in mild and moderate amblyopia.
Collapse
Affiliation(s)
- Amy Chow
- Department of Optometry and Vision Science, University of Waterloo, Waterloo, Canada
| | - Yiwei Quan
- Department of Psychology, University of Waterloo, Waterloo, Canada
| | - Celine Chui
- Department of Psychology, University of Waterloo, Waterloo, Canada
| | - Roxane J Itier
- Department of Psychology, University of Waterloo, Waterloo, Canada
| | - Benjamin Thompson
- Department of Optometry and Vision Science, University of Waterloo, Waterloo, Canada
- Centre for Eye and Vision Research, 17W Science Park, Hong Kong
- Liggins Institute, University of Auckland, Auckland, New Zealand
| |
Collapse
|
186
|
Abstract
The science of penile erection, including recent advances in its molecular physiology and neuroanatomic pathways, is described. The pathophysiology of erectile dysfunction is presented, acknowledging associated disease states, and accordingly follows a practical classification scheme: vasculogenic, neurogenic, endocrine, and psychogenic.
Collapse
Affiliation(s)
- Susan M MacDonald
- Division of Urology, Penn State Health Milton S. Hershey Medical Center, Mail Code H055, 500 University Drive, Hershey, PA 17033, USA.
| | - Arthur L Burnett
- James Buchanan Brady Urological Institute, Johns Hopkins School of Medicine, 600 North Wolfe Street, Marburg 407, Baltimore, MD 21287, USA
| |
Collapse
|
187
|
Feng C, Gu R, Li T, Wang L, Zhang Z, Luo W, Eickhoff SB. Separate neural networks of implicit emotional processing between pictures and words: A coordinate-based meta-analysis of brain imaging studies. Neurosci Biobehav Rev 2021; 131:331-344. [PMID: 34562542 DOI: 10.1016/j.neubiorev.2021.09.041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 09/14/2021] [Accepted: 09/21/2021] [Indexed: 02/02/2023]
Abstract
Both pictures and words are frequently employed as experimental stimuli to investigate the neurocognitive mechanisms of emotional processing. However, it remains unclear whether emotional picture processing and emotional word processing share neural underpinnings. To address this issue, we focus on neuroimaging studies examining the implicit processing of affective words and pictures, which require participants to meet cognitive task demands under the implicit influence of emotional pictorial or verbal stimuli. A coordinate-based activation likelihood estimation meta-analysis was conducted on these studies, which revealed no common activation maximum between the picture and word conditions. Specifically, implicit negative picture processing (35 experiments, 393 foci, and 932 subjects) engages the bilateral amygdala, left hippocampus, fusiform gyri, and right insula, which are mainly located in the subcortical network and visual network associated with bottom-up emotional responses. In contrast, implicit negative word processing (34 experiments, 316 foci, and 799 subjects) engages the default mode network and fronto-parietal network including the ventrolateral prefrontal cortex, dorsolateral prefrontal cortex, and dorsomedial prefrontal cortex, indicating the involvement of top-down semantic processing and emotion regulation. Our findings indicate that affective pictures (that intrinsically have an affective valence) and affective words (that inherit the affective valence from their object) modulate implicit emotional processing in different ways, and therefore recruit distinct brain systems.
Collapse
Affiliation(s)
- Chunliang Feng
- Key Laboratory of Brain, Cognition and Education Sciences (South China Normal University), Ministry of Education, Guangzhou, China; Guangdong Provincial Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China.
| | - Ruolei Gu
- CAS Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
| | - Ting Li
- Institute of Brain Research and Rehabilitation (IBRR), South China Normal University, Guangzhou, China
| | - Li Wang
- Collaborative Innovation Center of Assessment for Basic Education Quality, Beijing Normal University, Beijing, China
| | - Zhixing Zhang
- Key Laboratory of Brain, Cognition and Education Sciences (South China Normal University), Ministry of Education, Guangzhou, China; Guangdong Provincial Key Laboratory of Mental Health and Cognitive Science, Center for Studies of Psychological Application, School of Psychology, South China Normal University, Guangzhou, China
| | - Wenbo Luo
- Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian, China
| | - Simon B Eickhoff
- Institute of Systems Neuroscience, Medical Faculty, Heinrich Heine University Düsseldorf, Düsseldorf, Germany; Institute of Neuroscience and Medicine, Brain & Behaviour (INM-7), Research Centre Jülich, Jülich, Germany
| |
Collapse
|
188
|
van Boxtel A, Zaalberg R, de Wied M. Subnormal short-latency facial mimicry responses to dynamic emotional facial expressions in male adolescents with disruptive behavior disorders and callous-unemotional traits. Psychophysiology 2021; 59:e13945. [PMID: 34553782 PMCID: PMC9286451 DOI: 10.1111/psyp.13945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 07/29/2021] [Accepted: 09/02/2021] [Indexed: 01/04/2023]
Abstract
Using still pictures of emotional facial expressions as experimental stimuli, reduced amygdala responses or impaired recognition of basic emotions were repeatedly found in people with psychopathic traits. The amygdala also plays an important role in short‐latency facial mimicry responses. Since dynamic emotional facial expressions may have higher ecological validity than still pictures, we compared short‐latency facial mimicry responses to dynamic and static emotional expressions between adolescents with psychopathic traits and normal controls. Facial EMG responses to videos or still pictures of emotional expressions (happiness, anger, sadness, fear) were measured. Responses to 500‐ms dynamic expressions in videos, as well as the subsequent 1500‐ms phase of maximal (i.e., static) expression, were compared between male adolescents with disruptive behavior disorders and high (n = 14) or low (n = 17) callous‐unemotional (CU) traits, and normal control subjects (n = 32). Responses to still pictures were also compared between groups. EMG responses to dynamic expressions were generally significantly smaller in the high‐CU group than in the other two groups, which generally did not differ. These group differences gradually emerged during the 500‐ms stimulus presentation period but in general they were already seen a few hundred milliseconds after stimulus onset. Group differences were absent during the 1500‐ms phase of maximal expression and during exposure to still pictures. Subnormal short‐latency mimicry responses to dynamic emotional facial expressions in the high‐CU group might have negative consequences for understanding emotional facial expressions of others during daily life when human facial interactions are primarily dynamic. During human interactions, short‐latency facial mimicry responses occur to dynamic emotional facial expressions of others. These are preconscious, automatic responses which cannot be voluntarily controlled. They may be important for emotional understanding of others and appear to be subnormal in male adolescents with psychopathic traits.
Collapse
Affiliation(s)
- Anton van Boxtel
- Department of Cognitive Neuropsychology, Tilburg University, Tilburg, The Netherlands
| | - Ruud Zaalberg
- Wageningen University & Research, Biometris, Wageningen, The Netherlands
| | - Minet de Wied
- Department of Youth and Family, Faculty of Social and Behavioral Sciences, Utrecht University, Utrecht, The Netherlands
| |
Collapse
|
189
|
Yu WS, Kwon SH, Agadagba SK, Chan LLH, Wong KH, Lim LW. Neuroprotective Effects and Therapeutic Potential of Transcorneal Electrical Stimulation for Depression. Cells 2021; 10:cells10092492. [PMID: 34572141 PMCID: PMC8466154 DOI: 10.3390/cells10092492] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 08/29/2021] [Accepted: 09/17/2021] [Indexed: 12/22/2022] Open
Abstract
Transcorneal electrical stimulation (TES) has emerged as a non-invasive neuromodulation approach that exerts neuroprotection via diverse mechanisms, including neurotrophic, neuroplastic, anti-inflammatory, anti-apoptotic, anti-glutamatergic, and vasodilation mechanisms. Although current studies of TES have mainly focused on its applications in ophthalmology, several lines of evidence point towards its putative use in treating depression. Apart from stimulating visual-related structures and promoting visual restoration, TES has also been shown to activate brain regions that are involved in mood alterations and can induce antidepressant-like behaviour in animals. The beneficial effects of TES in depression were further supported by its shared mechanisms with FDA-approved antidepressant treatments, including its neuroprotective properties against apoptosis and inflammation, and its ability to enhance the neurotrophic expression. This article critically reviews the current findings on the neuroprotective effects of TES and provides evidence to support our hypothesis that TES possesses antidepressant effects.
Collapse
Affiliation(s)
- Wing-Shan Yu
- Neuromodulation Laboratory, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (W.-S.Y.); (S.-H.K.); (K.-H.W.)
| | - So-Hyun Kwon
- Neuromodulation Laboratory, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (W.-S.Y.); (S.-H.K.); (K.-H.W.)
| | - Stephen Kugbere Agadagba
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong, China; (S.K.A.); (L.-L.-H.C.)
| | - Leanne-Lai-Hang Chan
- Department of Electrical Engineering, City University of Hong Kong, Hong Kong, China; (S.K.A.); (L.-L.-H.C.)
| | - Kah-Hui Wong
- Neuromodulation Laboratory, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (W.-S.Y.); (S.-H.K.); (K.-H.W.)
- Department of Anatomy, Faculty of Medicine, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Lee-Wei Lim
- Neuromodulation Laboratory, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China; (W.-S.Y.); (S.-H.K.); (K.-H.W.)
- Correspondence:
| |
Collapse
|
190
|
Trait anxiety predicts amygdalar responses during direct processing of threat-related pictures. Sci Rep 2021; 11:18469. [PMID: 34531518 PMCID: PMC8446049 DOI: 10.1038/s41598-021-98023-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Accepted: 08/31/2021] [Indexed: 11/11/2022] Open
Abstract
Previous studies on the associations between trait anxiety and amygdalar responses to threat stimuli have resulted in mixed findings, possibly due to sample characteristics, specific tasks, and analytical methods. The present functional magnetic resonance imaging (fMRI) study aimed to investigate linear or non-linear associations between trait anxiety and amygdalar responses in a sample of participants with low, medium, and high trait anxiety scores. During scanning, participants were presented with threat-related or neutral pictures and had either to solve an emotional task or an emotional-unrelated distraction task. Results showed that only during the explicit task trait anxiety was associated with right amygdalar responses to threat-related pictures as compared to neutral pictures. The best model was a cubic model with increased amygdala responses for very low and medium trait anxiety values but decreased amygdala activation for very high trait anxiety values. The findings imply a non-linear relation between trait anxiety and amygdala activation depending on task conditions.
Collapse
|
191
|
Puig-Davi A, Martinez-Horta S, Sampedro F, Horta-Barba A, Perez-Perez J, Campolongo A, Izquierdo-Barrionuevo C, Pagonabarraga J, Gomez-Anson B, Kulisevsky J. Cognitive and Affective Empathy in Huntington's Disease. J Huntingtons Dis 2021; 10:323-334. [PMID: 34486985 DOI: 10.3233/jhd-210469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Empathy is a multidimensional construct and a key component of social cognition. In Huntington's disease (HD), little is known regarding the phenomenology and the neural correlates of cognitive and affective empathy, and regarding how empathic deficits interact with other behavioral and cognitive manifestations. OBJECTIVE To explore the cognitive and affective empathy disturbances and related behavioral and neural correlates in HD. METHODS Clinical and sociodemographic data were obtained from 36 healthy controls (HC) and 54 gene-mutation carriers (17 premanifest and 37 early-manifest HD). The Test of Cognitive and Affective Empathy (TECA) was used to characterize cognitive (CE) and affective empathy (AE), and to explore their associations with grey matter volume (GMV) and cortical thickness (Cth). RESULTS Compared to HC, premanifest participants performed significantly worse in perspective taking (CE) and empathic distress (AE). In symptomatic participants, scores were significantly lower in almost all the TECA subscales. Several empathy subscales were associated with the severity of apathy, irritability, and cognitive deficits. CE was associated with GMV in thalamic, temporal, and occipital regions, and with Cth in parietal and temporal areas. AE was associated with GMV in the basal ganglia, limbic, occipital, and medial orbitofrontal regions, and with Cth in parieto-occipital areas. CONCLUSION Cognitive and affective empathy deficits are detectable early, are more severe in symptomatic participants, and involve the disruption of several fronto-temporal, parieto-occipital, basal ganglia, and limbic regions. These deficits are associated with disease severity and contribute to several behavioral symptoms, facilitating the presentation of maladaptive patterns of social interaction.
Collapse
Affiliation(s)
- Arnau Puig-Davi
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain.,Autonomous University of Barcelona, Barcelona, Spain.,European Huntington's DiseaseNetwork (EHDN)
| | - Saul Martinez-Horta
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain.,Centro de InvestigaciónBiomédica en Red-Enfermedades Neurodegenerativas (CIBERNED), Spain.,Autonomous University of Barcelona, Barcelona, Spain.,European Huntington's DiseaseNetwork (EHDN)
| | - Frederic Sampedro
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain.,Centro de InvestigaciónBiomédica en Red-Enfermedades Neurodegenerativas (CIBERNED), Spain.,Autonomous University of Barcelona, Barcelona, Spain
| | - Andrea Horta-Barba
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain.,Centro de InvestigaciónBiomédica en Red-Enfermedades Neurodegenerativas (CIBERNED), Spain.,Autonomous University of Barcelona, Barcelona, Spain.,European Huntington's DiseaseNetwork (EHDN)
| | - Jesus Perez-Perez
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain.,Centro de InvestigaciónBiomédica en Red-Enfermedades Neurodegenerativas (CIBERNED), Spain.,Autonomous University of Barcelona, Barcelona, Spain.,European Huntington's DiseaseNetwork (EHDN)
| | - Antonia Campolongo
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain.,Autonomous University of Barcelona, Barcelona, Spain
| | - Cristina Izquierdo-Barrionuevo
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain
| | - Javier Pagonabarraga
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain.,Centro de InvestigaciónBiomédica en Red-Enfermedades Neurodegenerativas (CIBERNED), Spain.,Autonomous University of Barcelona, Barcelona, Spain
| | - Beatriz Gomez-Anson
- Neuroradiology, Radiology Department, Hospital de la Santa Creu i Sant Pau, AutonomousUniversity of Barcelona, Barcelona, Spain
| | - Jaime Kulisevsky
- Movement Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain.,Biomedical Research Institute (IIB-Sant Pau), Barcelona, Spain.,Centro de InvestigaciónBiomédica en Red-Enfermedades Neurodegenerativas (CIBERNED), Spain.,Autonomous University of Barcelona, Barcelona, Spain.,European Huntington's DiseaseNetwork (EHDN)
| |
Collapse
|
192
|
Chen YC, Chen C, Martínez RM, Fan YT, Liu CC, Chen CY, Cheng Y. An amygdala-centered hyper-connectivity signature of threatening face processing predicts anxiety in youths with autism spectrum conditions. Autism Res 2021; 14:2287-2299. [PMID: 34423915 DOI: 10.1002/aur.2595] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 07/17/2021] [Accepted: 08/06/2021] [Indexed: 11/06/2022]
Abstract
Anxiety is exceedingly prevalent among individuals with an autism spectrum condition (ASC). While recent literature postulates anxiety as a mechanism encompassing an underlying amygdala-related elevated baseline level of arousal even to nonthreatening cues, whether this same mechanism contributes to anxiety in those with an ASC and supports the transdiagnostic nature of anxiety remains elusive. In this case-control study of 51 youths (26 ASC), we assessed autism and anxiety via the Autism-Spectrum Quotient and the State-Trait Anxiety Inventory, respectively. Hemodynamic responses, including amygdala reactivity, to explicit and implicit (backwardly masked) perception of threatening faces were acquired using functional Magnetic Resonance Imaging (fMRI). For explicit fear, ASC individuals showed significantly greater negative correlations between the amygdala and the attentional deployment-parietal network. For implicit fear, ASC individuals showed significantly stronger correlations of the amygdala with the prefrontal networks, temporal pole, and hippocampus. Additionally, an fMRI-based neurologic signature for anxiety in ASCs was identified via the LibSVM machine learning model using amygdala-centered functional connectivity during the emotional processing of explicit and implicit stimuli. Hypervigilance to implicit threat in ASCs comorbid with anxiety might exacerbate explicit threat reactivity; hence the use of attentional avoidance patterns to restrict affective hyperarousal for explicitly perceived socioemotional stimuli. Consequently, developing an attention-independent behavioral/neural marker identifying anxiety in ASCs is highly warranted. LAY SUMMARY: This study identifies a dissociation of amygdala reactivity dependent on explicit and implicit threat processing. Implicit anxiety in individuals with an autism spectrum condition (ASC) could outweigh explicitly induced threat. When explicitly perceiving socioemotional stimuli, ASC individuals with anxiety might use attentional avoidance patterns to restrict affective hyperarousal.
Collapse
Affiliation(s)
- Yu-Chun Chen
- Department of Physical Medicine & Rehabilitation, National Yang Ming Chiao Tung University Hospital, Yilan, Taiwan.,Department of Physical Education, National Taiwan University of Sport, Taichung, Taiwan
| | - Chenyi Chen
- Graduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei, Taiwan.,Brain and Consciousness Research Center, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Graduate Institute of Mind, Brain and Consciousness, College of Humanities and Social Sciences, Taipei Medical University, Taipei, Taiwan.,Psychiatric Research Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Róger Marcelo Martínez
- Graduate Institute of Injury Prevention and Control, College of Public Health, Taipei Medical University, Taipei, Taiwan.,School of Psychological Sciences, National Autonomous University of Honduras, Tegucigalpa, Honduras
| | - Yang-Tang Fan
- Graduate Institute of Medicine, Yuan Ze University, Taoyuan, Taiwan
| | - Chia-Chien Liu
- Department of Psychiatry, Taichung Veterans General Hospital, Taichung, Taiwan.,Institute of Neuroscience and Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chin-Yau Chen
- Department of Surgery, National Yang Ming Chiao Tung University Hospital, Yilan, Taiwan
| | - Yawei Cheng
- Department of Physical Medicine & Rehabilitation, National Yang Ming Chiao Tung University Hospital, Yilan, Taiwan.,Institute of Neuroscience and Brain Research Center, National Yang Ming Chiao Tung University, Taipei, Taiwan.,Department of Education and Research, Taipei City Hospital, Taipei, Taiwan
| |
Collapse
|
193
|
Sawalha J, Yousefnezhad M, Selvitella AM, Cao B, Greenshaw AJ, Greiner R. Predicting pediatric anxiety from the temporal pole using neural responses to emotional faces. Sci Rep 2021; 11:16723. [PMID: 34408203 PMCID: PMC8373898 DOI: 10.1038/s41598-021-95987-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 07/23/2021] [Indexed: 12/30/2022] Open
Abstract
A prominent cognitive aspect of anxiety is dysregulation of emotional interpretation of facial expressions, associated with neural activity from the amygdala and prefrontal cortex. We report machine learning analysis of fMRI results supporting a key role for a third area, the temporal pole (TP) for childhood anxiety in this context. This finding is based on differential fMRI responses to emotional faces (angry versus fearful faces) in children with one or more of generalized anxiety, separation anxiety, and social phobia (n = 22) compared with matched controls (n = 23). In our machine learning (Adaptive Boosting) model, the right TP distinguished anxious from control children (accuracy = 81%). Involvement of the TP as significant for neurocognitive aspects of pediatric anxiety is a novel finding worthy of further investigation.
Collapse
Affiliation(s)
- Jeffrey Sawalha
- Department of Psychiatry, University of Alberta, Alberta, Canada.,Department of Computing Science, University of Alberta, Alberta, Canada.,Alberta Machine Intelligence Institute (Amii), Alberta, Canada
| | - Muhammad Yousefnezhad
- Department of Psychiatry, University of Alberta, Alberta, Canada.,Department of Computing Science, University of Alberta, Alberta, Canada.,Alberta Machine Intelligence Institute (Amii), Alberta, Canada
| | - Alessandro M Selvitella
- Department of Mathematical Sciences, Purdue University, Fort Wayne, United States.,eScience Institute, University of Washington, Seattle, WA, USA
| | - Bo Cao
- Department of Psychiatry, University of Alberta, Alberta, Canada
| | | | - Russell Greiner
- Department of Psychiatry, University of Alberta, Alberta, Canada. .,Department of Computing Science, University of Alberta, Alberta, Canada. .,Alberta Machine Intelligence Institute (Amii), Alberta, Canada.
| |
Collapse
|
194
|
Stark EA, Cabral J, Riem MME, Van IJzendoorn MH, Stein A, Kringelbach ML. The Power of Smiling: The Adult Brain Networks Underlying Learned Infant Emotionality. Cereb Cortex 2021; 30:2019-2029. [PMID: 32129828 DOI: 10.1093/cercor/bhz219] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 07/03/2019] [Accepted: 08/20/2019] [Indexed: 12/23/2022] Open
Abstract
The perception of infant emotionality, one aspect of temperament, starts to form in infancy, yet the underlying mechanisms of how infant emotionality affects adult neural dynamics remain unclear. We used a social reward task with probabilistic visual and auditory feedback (infant laughter or crying) to train 47 nulliparous women to perceive the emotional style of six different infants. Using functional neuroimaging, we subsequently measured brain activity while participants were tested on the learned emotionality of the six infants. We characterized the elicited patterns of dynamic functional brain connectivity using Leading Eigenvector Dynamics Analysis and found significant activity in a brain network linking the orbitofrontal cortex with the amygdala and hippocampus, where the probability of occurrence significantly correlated with the valence of the learned infant emotional disposition. In other words, seeing infants with neutral face expressions after having interacted and learned their various degrees of positive and negative emotional dispositions proportionally increased the activity in a brain network previously shown to be involved in pleasure, emotion, and memory. These findings provide novel neuroimaging insights into how the perception of happy versus sad infant emotionality shapes adult brain networks.
Collapse
Affiliation(s)
- Eloise A Stark
- Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK
| | - Joana Cabral
- Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK.,Center for Music in the Brain, Aarhus University, Aarhus, Denmark.,Life and Health Sciences Research Institute (ICVS), University of Minho, Braga, Portugal
| | - Madelon M E Riem
- Department of Medical and Clinical Psychology, Tilburg University, Tilburg, The Netherlands
| | - Marinus H Van IJzendoorn
- Primary Care Unit, School of Clinical Medicine, University of Cambridge, Cambridge, UK.,Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, Rotterdam, The Netherlands
| | - Alan Stein
- Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK.,MRC/Wits Rural Public Health and Health Transitions Research Unit (Agincourt), School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Morten L Kringelbach
- Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK.,Center for Music in the Brain, Aarhus University, Aarhus, Denmark
| |
Collapse
|
195
|
The magnitude and variability of brain structural alterations in bipolar disorder: A double meta-analysis of 5534 patients and 6651 healthy controls. J Affect Disord 2021; 291:171-176. [PMID: 34038834 DOI: 10.1016/j.jad.2021.04.090] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 12/19/2020] [Accepted: 04/25/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Bipolar disorder is thought to be associated with structural brain alterations, but findings have been inconsistent. Our double meta-analysis investigated the variability and magnitude of differences in regional brain volumes in patients with bipolar disorder relative to healthy volunteers. METHODS Databases were systematically searched for MRI studies reporting regional brain volumetric measures in patients with bipolar disorder and controls. The primary outcome measures were variability ratio (VR), coefficient of variability ratio (CVR) and Hedge's g. RESULTS 118 studies comprising 5534 patients and 6651 controls were included. The variability meta-analysis showed higher variability in amygdala (VR, 1.14; P = .02; CVR, 1.25; P = .005) and hippocampal (VR, 1.16; P = .001; CVR, 1.22; P = <.001) volumes in patients relative to controls. The meta-analysis of volume differences showed higher lateral (g, -0.43; P = <.0001) and third ventricle (g, -0.22; P = .01) volumes in patients; and lower hippocampus (g, 0.41; P = .001), grey matter (g, 0.25; P = .001), white matter (g, 0.23; P = .0002) and total brain volumes (g, 0.20; P = .003) in patients relative to controls. A higher proportion of male subjects was associated with decreased mean volumes of the amygdala, hippocampus and thalamus and increased lateral ventricle volumes. LIMITATIONS There was significant publication bias and between-study inconsistency for several brain regions. CONCLUSIONS Bipolar disorder is associated with generalised alterations in white and grey matter brain volumes, particularly marked in the hippocampus volumes, which were smaller but showed greater variability in volumes relative to controls. This suggests that heterogeneity in neurobiological processes involving the hippocampus contribute to clinical heterogeneity in the disorder, and this may be more marked in males than females.
Collapse
|
196
|
Tsikandilakis M, Bali P, Yu Z, Madan C, Derrfuss J, Chapman P, Groeger J. Individual conscious and unconscious perception of emotion: Theory, methodology and applications. Conscious Cogn 2021; 94:103172. [PMID: 34332204 DOI: 10.1016/j.concog.2021.103172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 06/16/2021] [Accepted: 07/19/2021] [Indexed: 11/26/2022]
Abstract
In this manuscript we review a seminal debate related to subliminality and concerning the relationship of consciousness, unconsciousness, and perception. We present the methodological implementations that contemporary psychology introduced to explore this relationship, such as the application of unbiased self-report metrics and Bayesian analyses for assessing detection and discrimination. We present evidence concerning an unaddressed issue, namely, that different participants and stimulus types require different thresholds for subliminal presentation. We proceed to a step-by-step experimental illustration of a method involving individual thresholds for the presentation of masked emotional faces. We show that individual thresholds provide Bayesian evidence for null responses to the presented faces. Conversely, we show in the same database that when applying established but biased non-individual criteria for subliminality physiological changes occur and relate - correctly, and most importantly incorrectly - to perception concerning the emotional type, and the valence and intensity of a presented masked emotional face.
Collapse
Affiliation(s)
- Myron Tsikandilakis
- School of Psychology, University of Nottingham, United Kingdom; Medical School, Faculty of Medicine and Health Sciences, University of Nottingham, United Kingdom.
| | - Persefoni Bali
- School of Psychology, University of Nottingham, United Kingdom
| | - Zhaoliang Yu
- Department of Psychology, Wuhan University, China
| | | | - Jan Derrfuss
- School of Psychology, University of Nottingham, United Kingdom
| | - Peter Chapman
- School of Psychology, University of Nottingham, United Kingdom
| | - John Groeger
- School of Social Sciences, Nottingham Trent University, United Kingdom
| |
Collapse
|
197
|
García-García I, Garolera M, Ottino-González J, Prats-Soteras X, Prunell-Castañé A, Jurado MÁ. Restrained Eating Is Associated with Lower Cortical Thickness in the Inferior Frontal Gyrus in Adolescents. Brain Sci 2021; 11:brainsci11080978. [PMID: 34439597 PMCID: PMC8394556 DOI: 10.3390/brainsci11080978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Revised: 07/21/2021] [Accepted: 07/22/2021] [Indexed: 12/15/2022] Open
Abstract
Some eating patterns, such as restrained eating and uncontrolled eating, are risk factors for eating disorders. However, it is not yet clear whether they are associated with neurocognitive differences. In the current study, we analyzed whether eating patterns can be used to classify participants into meaningful clusters, and we examined whether there are neurocognitive differences between the clusters. Adolescents (n = 108; 12 to 17 years old) and adults (n = 175, 18 to 40 years old) completed the Three Factor Eating Questionnaire, which was used to classify participants according to their eating profile using k means clustering. Participants also completed personality questionnaires and a neuropsychological examination. A subsample of participants underwent a brain MRI acquisition. In both samples, we obtained a cluster characterized by high uncontrolled eating patterns, a cluster with high scores in restrictive eating, and a cluster with low scores in problematic eating behaviors. The clusters were equivalent with regards to personality and performance in executive functions. In adolescents, the cluster with high restrictive eating showed lower cortical thickness in the inferior frontal gyrus compared to the other two clusters. We hypothesize that this difference in cortical thickness represents an adaptive neural mechanism that facilitates inhibition processes.
Collapse
Affiliation(s)
- Isabel García-García
- Department of Clinical Psychology and Psychobiology, University of Barcelona, 08035 Barcelona, Spain; (I.G.-G.); (J.O.-G.); (X.P.-S.); (A.P.-C.)
| | - Maite Garolera
- Neuropsychology Unit, Hospital of Terrassa, Consorci Sanitari de Terrassa, 08227 Terrassa, Spain;
| | - Jonatan Ottino-González
- Department of Clinical Psychology and Psychobiology, University of Barcelona, 08035 Barcelona, Spain; (I.G.-G.); (J.O.-G.); (X.P.-S.); (A.P.-C.)
- Department of Psychiatry, University of Vermont College of Medicine, Burlington, VT 05405, USA
| | - Xavier Prats-Soteras
- Department of Clinical Psychology and Psychobiology, University of Barcelona, 08035 Barcelona, Spain; (I.G.-G.); (J.O.-G.); (X.P.-S.); (A.P.-C.)
| | - Anna Prunell-Castañé
- Department of Clinical Psychology and Psychobiology, University of Barcelona, 08035 Barcelona, Spain; (I.G.-G.); (J.O.-G.); (X.P.-S.); (A.P.-C.)
- Institut de Neurociències, University of Barcelona, 08035 Barcelona, Spain
- Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu, 08950 Esplugues de Llobregat, Spain
| | - María Ángeles Jurado
- Department of Clinical Psychology and Psychobiology, University of Barcelona, 08035 Barcelona, Spain; (I.G.-G.); (J.O.-G.); (X.P.-S.); (A.P.-C.)
- Institut de Neurociències, University of Barcelona, 08035 Barcelona, Spain
- Institut de Recerca Sant Joan de Déu, Hospital Sant Joan de Déu, 08950 Esplugues de Llobregat, Spain
- Correspondence:
| |
Collapse
|
198
|
Gao J, Yang C, Li Q, Chen L, Jiang Y, Liu S, Zhang J, Liu G, Chen J. Hemispheric Difference of Regional Brain Function Exists in Patients With Acute Stroke in Different Cerebral Hemispheres: A Resting-State fMRI Study. Front Aging Neurosci 2021; 13:691518. [PMID: 34305571 PMCID: PMC8299339 DOI: 10.3389/fnagi.2021.691518] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 06/14/2021] [Indexed: 12/26/2022] Open
Abstract
Objective To explore the different compensatory mechanisms of brain function between the patients with brain dysfunction after acute ischemic stroke (AIS) in the dominant hemisphere and the non-dominant hemisphere based on Resting-state Functional Magnetic Resonance Imaging (Rs-fMRI). Methods In this trial, 15 healthy subjects (HS) were used as blank controls. In total, 30 hemiplegic patients with middle cerebral artery acute infarction of different dominant hemispheres were divided into the dominant hemisphere group (DH) and the non-dominant hemisphere group (NDH), scanned by a 3.0 T MRI scanner, to obtain the amplitude of low-frequency fluctuations (ALFF) and regional homogeneity (ReHo) and compare the differences. Results Compared with the HS, increased ALFF values in the brain areas, such as the bilateral midbrain, were observed in DH. Meanwhile decreased ReHo values in the brain areas, such as the right postcentral gyrus (BA3), were also observed. Enhanced ALFF values in the brain areas, such as the left BA6, and enhanced ReHo values in the brain areas, such as the left precuneus, were observed in the NDH. The ALFF and ReHo values of the right BA9 and precentral gyrus were both increased. Compared with DH, the NDH group showed lower ALFF values in the left supplementary motor area and lower ReHo values in the right BA10. Conclusion After acute infarction in the middle cerebral artery of the dominant hemisphere, a compensation mechanism is triggered in brain areas of the ipsilateral cortex regulating motor-related pathways, while some brain areas related to cognition, sensation, and motor in the contralateral cortex are suppressed, and the connection with the peripheral brain regions is weakened. After acute infarction in the middle cerebral artery of the non-dominant hemisphere, compensatory activation appears in motor control-related brain areas of the dominant hemisphere. After acute middle cerebral artery infarction in the dominant hemisphere, compared with the non-dominant hemisphere, functional specificity in the bilateral supplementary motor area weakens. After acute middle cerebral artery infarction in different hemispheres, there are hemispheric differences in the compensatory mechanism of brain function.
Collapse
Affiliation(s)
- Jingchun Gao
- Department of Rehabilitation Medicine, Third Affiliated Hospital of Southern Medical University, Guangzhou, China.,Department of Rehabilitation Medicine, Foshan Hospital of Traditional Chinese Medicine, Foshan, China
| | - Canhong Yang
- Department of Neurology, Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Qixiong Li
- Department of Rehabilitation Medicine, Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Lanpin Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yijing Jiang
- Department of Rehabilitation Medicine, Rehabilitation Hospital, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Songyan Liu
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Jing Zhang
- Department of Neurology, China-Japan Union Hospital of Jilin University, Changchun, China
| | - Gang Liu
- Department of Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Junqi Chen
- Department of Rehabilitation Medicine, Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| |
Collapse
|
199
|
Abstract
Initial evaluation structures (IESs) currently proposed as the earliest detectors of affective stimuli (e.g., amygdala, orbitofrontal cortex, or insula) are high-order structures (a) whose response latency cannot account for the first visual cortex emotion-related response (~80 ms), and (b) lack the necessary infrastructure to locally analyze the visual features that define emotional stimuli. Several thalamic structures accomplish both criteria. The lateral geniculate nucleus (LGN), a first-order thalamic nucleus that actively processes visual information, with the complement of the thalamic reticular nucleus (TRN) are proposed as core IESs. This LGN–TRN tandem could be supported by the pulvinar, a second-order thalamic structure, and by other extrathalamic nuclei. The visual thalamus, scarcely explored in affective neurosciences, seems crucial in early emotional evaluation.
Collapse
Affiliation(s)
- Luis Carretié
- Facultad de Psicología, Universidad Autónoma de Madrid, Spain
| | | | | |
Collapse
|
200
|
Yin S, Bo K, Liu Y, Thigpen N, Keil A, Ding M. Fear conditioning prompts sparser representations of conditioned threat in primary visual cortex. Soc Cogn Affect Neurosci 2021; 15:950-964. [PMID: 32901822 PMCID: PMC7647380 DOI: 10.1093/scan/nsaa122] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 08/01/2020] [Accepted: 09/03/2020] [Indexed: 12/12/2022] Open
Abstract
Repeated exposure to threatening stimuli alters sensory responses. We investigated the underlying neural mechanism by re-analyzing previously published simultaneous electroencephalogram-functional magnetic resonance imaging (EEG-fMRI) data from humans viewing oriented gratings during Pavlovian fear conditioning. In acquisition, one grating (CS+) was paired with a noxious noise, the unconditioned stimulus (US). The other grating (CS-) was never paired with the US. In habituation, which preceded acquisition, and in extinction, the same two gratings were presented without US. Using fMRI multivoxel patterns in primary visual cortex during habituation as reference, we found that during acquisition, aversive learning selectively prompted systematic changes in multivoxel patterns evoked by CS+. Specifically, CS+ evoked voxel patterns in V1 became sparser as aversive learning progressed, and the sparsified pattern appeared to be preserved in extinction. Concomitant with the voxel pattern changes, occipital alpha oscillations were increasingly more desynchronized during CS+ (but not CS-) trials. Across acquisition trials, the rate of change in CS+-related alpha desynchronization was correlated with the rate of change in multivoxel pattern representations of CS+. Furthermore, alpha oscillations co-varied with blood-oxygen-level-dependent (BOLD) data in the ventral attention network, but not with BOLD in the amygdala. Thus, fear conditioning prompts persistent sparsification of voxel patterns evoked by threat, likely mediated by attention-related mechanisms
Collapse
Affiliation(s)
- Siyang Yin
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Ke Bo
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA
| | - Yuelu Liu
- Center for Mind and Brain, University of California, Davis, CA 95618, USA
| | - Nina Thigpen
- Department of Psychology, University of Florida, Gainesville, FL 32611, USA
| | - Andreas Keil
- Department of Psychology, University of Florida, Gainesville, FL 32611, USA
| | - Mingzhou Ding
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL 32611, USA
| |
Collapse
|