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Xiao J, Adkinson JA, Allawala AB, Banks G, Bartoli E, Fan X, Mocchi M, Pascuzzi B, Pulapaka S, Franch MC, Mathew SJ, Mathura RK, Myers J, Pirtle V, Provenza NR, Shofty B, Watrous AJ, Pitkow X, Goodman WK, Pouratian N, Sheth S, Bijanki KR, Hayden BY. Insula uses overlapping codes for emotion in self and others. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.04.596966. [PMID: 38895233 PMCID: PMC11185604 DOI: 10.1101/2024.06.04.596966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
In daily life, we must recognize others' emotions so we can respond appropriately. This ability may rely, at least in part, on neural responses similar to those associated with our own emotions. We hypothesized that the insula, a cortical region near the junction of the temporal, parietal, and frontal lobes, may play a key role in this process. We recorded local field potential (LFP) activity in human neurosurgical patients performing two tasks, one focused on identifying their own emotional response and one on identifying facial emotional responses in others. We found matching patterns of gamma- and high-gamma band activity for the two tasks in the insula. Three other regions (MTL, ACC, and OFC) clearly encoded both self- and other-emotions, but used orthogonal activity patterns to do so. These results support the hypothesis that the insula plays a particularly important role in mediating between experienced vs. observed emotions.
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Affiliation(s)
- Jiayang Xiao
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Joshua A. Adkinson
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | | | - Garrett Banks
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Eleonora Bartoli
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Xiaoxu Fan
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Madaline Mocchi
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Bailey Pascuzzi
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Suhruthaa Pulapaka
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Melissa C. Franch
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Sanjay J. Mathew
- Department of Psychiatry, Baylor College of Medicine, Houston, TX, 77030
| | - Raissa K. Mathura
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - John Myers
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Victoria Pirtle
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Nicole R Provenza
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Ben Shofty
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Andrew J. Watrous
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Xaq Pitkow
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Wayne K. Goodman
- Department of Psychiatry, Baylor College of Medicine, Houston, TX, 77030
| | - Nader Pouratian
- Department of Neurosurgery, University of Texas Southwestern, Dallas, TX, 75390
| | - Sameer Sheth
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Kelly R. Bijanki
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
| | - Benjamin Y. Hayden
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, 77030
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Adamic EM, Teed AR, Avery JA, de la Cruz F, Khalsa SS. Hemispheric divergence of interoceptive processing across psychiatric disorders. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.12.08.570759. [PMID: 38105986 PMCID: PMC10723463 DOI: 10.1101/2023.12.08.570759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
Interactions between top-down attention and bottom-up visceral inputs are assumed to produce conscious perceptions of interoceptive states, and while each process has been independently associated with aberrant interoceptive symptomatology in psychiatric disorders, the neural substrates of this interface are unknown. We conducted a preregistered functional neuroimaging study of 46 individuals with anxiety, depression, and/or eating disorders (ADE) and 46 propensity-matched healthy comparisons (HC), comparing their neural activity across two interoceptive tasks differentially recruiting top-down or bottom-up processing within the same scan session. During an interoceptive attention task, top-down attention was voluntarily directed towards cardiorespiratory or visual signals, whereas during an interoceptive perturbation task, intravenous infusions of isoproterenol (a peripherally-acting beta-adrenergic receptor agonist) were administered in a double-blinded and placebo-controlled fashion to drive bottom-up cardiorespiratory sensations. Across both tasks, neural activation converged upon the insular cortex, localizing within the granular and ventral dysgranular subregions bilaterally. However, contrasting hemispheric differences emerged, with the ADE group exhibiting (relative to HCs) an asymmetric pattern of overlap in the left insula, with increased or decreased proportions of co-activated voxels within the left or right dysgranular insula, respectively. The ADE group also showed less agranular anterior insula activation during periods of bodily uncertainty (i.e., when anticipating possible isoproterenol-induced changes that never arrived). Finally, post-task changes in insula functional connectivity were associated with anxiety and depression severity. These findings confirm the dysgranular mid-insula as a key cortical interface where attention and prediction meet real-time bodily inputs, especially during heightened awareness of interoceptive states. Further, the dysgranular mid-insula may indeed be a "locus of disruption" for psychiatric disorders.
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Affiliation(s)
- Emily M Adamic
- Laureate Institute for Brain Research, Tulsa, OK, USA, 74136
- Department of Biological Sciences, University of Tulsa, Tulsa, OK, USA, 74104
| | - Adam R Teed
- Laureate Institute for Brain Research, Tulsa, OK, USA, 74136
| | - Jason A Avery
- Laboratory of Brain and Cognition, National Institute of Mental Health, Bethesda, MD, USA, 20814
| | - Feliberto de la Cruz
- Laboratory for Autonomic Neuroscience, Imaging, and Cognition (LANIC), Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Thuringia, Germany, 07743
| | - Sahib S Khalsa
- Laureate Institute for Brain Research, Tulsa, OK, USA, 74136
- Oxley College of Health Sciences, University of Tulsa, Tulsa, OK, USA, 74119
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Skouras S, Kleinert ML, Lee EHM, Hui CLM, Suen YN, Camchong J, Chong CSY, Chang WC, Chan SKW, Lo WTL, Lim KO, Chen EYH. Aberrant connectivity in the hippocampus, bilateral insula and temporal poles precedes treatment resistance in first-episode psychosis: a prospective resting-state functional magnetic resonance imaging study with connectivity concordance mapping. Brain Commun 2024; 6:fcae094. [PMID: 38707706 PMCID: PMC11069118 DOI: 10.1093/braincomms/fcae094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 12/04/2023] [Accepted: 04/17/2024] [Indexed: 05/07/2024] Open
Abstract
Functional connectivity resting-state functional magnetic resonance imaging has been proposed to predict antipsychotic treatment response in schizophrenia. However, only a few prospective studies have examined baseline resting-state functional magnetic resonance imaging data in drug-naïve first-episode schizophrenia patients with regard to subsequent treatment response. Data-driven approaches to conceptualize and measure functional connectivity patterns vary broadly, and model-free, voxel-wise, whole-brain analysis techniques are scarce. Here, we apply such a method, called connectivity concordance mapping to resting-state functional magnetic resonance imaging data acquired from an Asian sample (n = 60) with first-episode psychosis, prior to pharmaceutical treatment. Using a longitudinal design, 12 months after the resting-state functional magnetic resonance imaging, we measured and classified patients into two groups based on psychometric testing: treatment responsive and treatment resistant. Next, we compared the two groups' connectivity concordance maps that were derived from the resting-state functional magnetic resonance imaging data at baseline. We have identified consistently higher functional connectivity in the treatment-resistant group in a network including the left hippocampus, bilateral insula and temporal poles. These data-driven novel findings can help researchers to consider new regions of interest and facilitate biomarker development in order to identify treatment-resistant schizophrenia patients early, in advance of treatment and at the time of their first psychotic episode.
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Affiliation(s)
- Stavros Skouras
- Department of Fundamental Neurosciences, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland
- Department of Neurology, Inselspital University Hospital Bern, CH3010 Bern, Switzerland
| | | | - Edwin H M Lee
- Department of Psychiatry, University of Hong Kong, Hong Kong, China
| | - Christy L M Hui
- Department of Psychiatry, University of Hong Kong, Hong Kong, China
| | - Yi Nam Suen
- Department of Psychiatry, University of Hong Kong, Hong Kong, China
| | - Jazmin Camchong
- Department of Psychiatry, University of Minnesota, Minneapolis, MN 55454, USA
| | | | - Wing Chung Chang
- Department of Psychiatry, University of Hong Kong, Hong Kong, China
| | - Sherry K W Chan
- Department of Psychiatry, University of Hong Kong, Hong Kong, China
| | - William T L Lo
- Department of Psychiatry, Kwai Chung Hospital, Hong Kong, China
| | - Kelvin O Lim
- Department of Psychiatry, University of Minnesota, Minneapolis, MN 55454, USA
| | - Eric Y H Chen
- Department of Psychiatry, University of Hong Kong, Hong Kong, China
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Strohman A, Isaac G, Payne B, Verdonk C, Khalsa SS, Legon W. Low-intensity focused ultrasound to the human insular cortex differentially modulates the heartbeat-evoked potential: a proof-of-concept study. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.08.584152. [PMID: 38559271 PMCID: PMC10979877 DOI: 10.1101/2024.03.08.584152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Background The heartbeat evoked potential (HEP) is a brain response time-locked to the heartbeat and a potential marker of interoceptive processing. The insula and dorsal anterior cingulate cortex (dACC) are brain regions that may be involved in generating the HEP. Low-intensity focused ultrasound (LIFU) is a non-invasive neuromodulation technique that can selectively target sub-regions of the insula and dACC to better understand their contributions to the HEP. Objective Proof-of-concept study to determine whether LIFU modulation of the anterior insula (AI), posterior insula (PI), and dACC influences the HEP. Methods In a within-subject, repeated-measures design, healthy human participants (n=16) received 10 minutes of stereotaxically targeted LIFU to the AI, PI, dACC or Sham at rest during continuous electroencephalography (EEG) and electrocardiography (ECG) recording on separate days. Primary outcome was change in HEP amplitudes. Relationships between LIFU pressure and HEP changes were examined using linear mixed modelling. Peripheral indices of visceromotor output including heart rate and heart rate variability (HRV) were explored between conditions. Results Relative to sham, LIFU to the PI, but not AI or dACC, decreased HEP amplitudes; this was partially explained by increased LIFU pressure. LIFU did not affect time or frequency dependent measures of HRV. Conclusions These results demonstrate the ability to modulate HEP amplitudes via non-invasive targeting of key interoceptive brain regions. Our findings have implications for the causal role of these areas in bottom-up heart-brain communication that could guide future work investigating the HEP as a marker of interoceptive processing in healthy and clinical populations.
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Affiliation(s)
- Andrew Strohman
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, 24016, USA
- Virginia Tech Carilion School of Medicine, Roanoke, VA, 24016, USA
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Roanoke, VA, 24016, USA
| | - Gabriel Isaac
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, 24016, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24016, USA
| | - Brighton Payne
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, 24016, USA
| | - Charles Verdonk
- Laureate Institute for Brain Research, Tulsa, OK, USA
- VIFASOM (EA 7330 Vigilance Fatigue, Sommeil et Santé Publique), Université Paris Cité, Paris, France
- French Armed Forces Biomedical Research Institute, Brétigny-sur-Orge, France
| | - Sahib S. Khalsa
- Laureate Institute for Brain Research, Tulsa, OK, USA
- Oxley College of Health Sciences, University of Tulsa, Tulsa, OK, USA
| | - Wynn Legon
- Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, 24016, USA
- Center for Human Neuroscience Research, Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, 24016, USA
- Center for Health Behaviors Research, Fralin Biomedical Research Institute at Virginia Tech Carilion, Roanoke, VA, 24016, USA
- School of Neuroscience, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24016, USA
- Virginia Tech Carilion School of Medicine, Roanoke, VA, 24016, USA
- Graduate Program in Translational Biology, Medicine, and Health, Virginia Polytechnic Institute and State University, Roanoke, VA, 24016, USA
- Department of Neurosurgery, Carilion Clinic, Roanoke, VA, 24016, USA
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Taylor A, Adank DN, Young PA, Quan Y, Nabit BP, Winder DG. Forced Abstinence from Volitional Ethanol Intake Drives a Vulnerable Period of Hyperexcitability in BNST-Projecting Insular Cortex Neurons. J Neurosci 2024; 44:e1121232023. [PMID: 38050120 PMCID: PMC10860622 DOI: 10.1523/jneurosci.1121-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 10/26/2023] [Accepted: 11/13/2023] [Indexed: 12/06/2023] Open
Abstract
The insular cortex (IC) integrates sensory and interoceptive cues to inform downstream circuitry executing adaptive behavioral responses. The IC communicates with areas involved canonically in stress and motivation. IC projections govern stress and ethanol recruitment of bed nucleus of the stria terminalis (BNST) activity necessary for the emergence of negative affective behaviors during alcohol abstinence. Here, we assess the impact of the chronic drinking forced abstinence (CDFA) volitional home cage ethanol intake paradigm on synaptic and excitable properties of IC neurons that project to the BNST (IC→BNST). Using whole-cell patch-clamp electrophysiology, we investigated IC→BNST circuitry 24 h or 2 weeks following forced abstinence (FA) in female C57BL6/J mice. We find that IC→BNST cells are transiently more excitable following acute ethanol withdrawal. In contrast, in vivo ethanol exposure via intraperitoneal injection, ex vivo via ethanol wash, and acute FA from a natural reward (sucrose) all failed to alter excitability. In situ hybridization studies revealed that at 24 h post FA BK channel mRNA expression is reduced in IC. Further, pharmacological inhibition of BK channels mimicked the 24 h FA phenotype, while BK activation was able to decrease AP firing in control and 24 h FA subjects. All together these data suggest a novel mechanism of homeostatic plasticity that occurs in the IC→BNST circuitry following chronic drinking.
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Affiliation(s)
- Anne Taylor
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee 37235
- Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, Tennessee 37235
| | - Danielle N Adank
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee 37235
- Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, Tennessee 37235
| | - Phoebe A Young
- Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, Tennessee 37235
| | - Yizhen Quan
- Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, Tennessee 37235
| | - Brett P Nabit
- Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, Tennessee 37235
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee 37235
| | - Danny G Winder
- Vanderbilt Brain Institute, Vanderbilt University, Nashville, Tennessee 37235
- Vanderbilt Center for Addiction Research, Vanderbilt University, Nashville, Tennessee 37235
- Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee 37235
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee 37235
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Krupnik V. I like therefore I can, and I can therefore I like: the role of self-efficacy and affect in active inference of allostasis. Front Neural Circuits 2024; 18:1283372. [PMID: 38322807 PMCID: PMC10839114 DOI: 10.3389/fncir.2024.1283372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 01/02/2024] [Indexed: 02/08/2024] Open
Abstract
Active inference (AIF) is a theory of the behavior of information-processing open dynamic systems. It describes them as generative models (GM) generating inferences on the causes of sensory input they receive from their environment. Based on these inferences, GMs generate predictions about sensory input. The discrepancy between a prediction and the actual input results in prediction error. GMs then execute action policies predicted to minimize the prediction error. The free-energy principle provides a rationale for AIF by stipulating that information-processing open systems must constantly minimize their free energy (through suppressing the cumulative prediction error) to avoid decay. The theory of homeostasis and allostasis has a similar logic. Homeostatic set points are expectations of living organisms. Discrepancies between set points and actual states generate stress. For optimal functioning, organisms avoid stress by preserving homeostasis. Theories of AIF and homeostasis have recently converged, with AIF providing a formal account for homeo- and allostasis. In this paper, we present bacterial chemotaxis as molecular AIF, where mutual constraints by extero- and interoception play an essential role in controlling bacterial behavior supporting homeostasis. Extending this insight to the brain, we propose a conceptual model of the brain homeostatic GM, in which we suggest partition of the brain GM into cognitive and physiological homeostatic GMs. We outline their mutual regulation as well as their integration based on the free-energy principle. From this analysis, affect and self-efficacy emerge as the main regulators of the cognitive homeostatic GM. We suggest fatigue and depression as target neurocognitive phenomena for studying the neural mechanisms of such regulation.
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Affiliation(s)
- Valery Krupnik
- Department of Mental Health, Naval Hospital Camp Pendleton, Camp Pendleton, Oceanside, CA, United States
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Poli A, Cappellini F, Sala J, Miccoli M. The integrative process promoted by EMDR in dissociative disorders: neurobiological mechanisms, psychometric tools, and intervention efficacy on the psychological impact of the COVID-19 pandemic. Front Psychol 2023; 14:1164527. [PMID: 37727746 PMCID: PMC10505816 DOI: 10.3389/fpsyg.2023.1164527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 08/07/2023] [Indexed: 09/21/2023] Open
Abstract
Dissociative disorders (DDs) are characterized by a discontinuity in the normal integration of consciousness, memory, identity, emotion, perception, bodily representation, motor control, and action. The life-threatening coronavirus disease 2019 (COVID-19) pandemic has been identified as a potentially traumatic event and may produce a wide range of mental health problems, such as depression, anxiety disorders, sleep disorders, and DD, stemming from pandemic-related events, such as sickness, isolation, losing loved ones, and fear for one's life. In our conceptual analysis, we introduce the contribution of the structural dissociation of personality (SDP) theory and polyvagal theory to the conceptualization of the COVID-19 pandemic-triggered DD and the importance of assessing perceived safety in DD through neurophysiologically informed psychometric tools. In addition, we analyzed the contribution of eye movement desensitization and reprocessing (EMDR) to the treatment of the COVID-19 pandemic-triggered DD and suggest possible neurobiological mechanisms of action of the EMDR. In particular, we propose that, through slow eye movements, the EMDR may promote an initial non-rapid-eye-movement sleep stage 1-like activity, a subsequent access to a slow-wave sleep activity, and an oxytocinergic neurotransmission that, in turn, may foster the functional coupling between paraventricular nucleus and both sympathetic and parasympathetic cardioinhibitory nuclei. Neurophysiologically informed psychometric tools for safety evaluation in DDs are discussed. Furthermore, clinical and public health implications are considered, combining the EMDR, SDP theory, and polyvagal conceptualizations in light of the potential dissociative symptomatology triggered by the COVID-19 pandemic.
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De la Cruz F, Teed AR, Lapidus RC, Upshaw V, Schumann A, Paulus MP, Bär KJ, Khalsa SS. Central Autonomic Network Alterations in Anorexia Nervosa Following Peripheral Adrenergic Stimulation. BIOLOGICAL PSYCHIATRY. COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2023; 8:720-730. [PMID: 37055325 PMCID: PMC10285030 DOI: 10.1016/j.bpsc.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Anorexia nervosa (AN) is characterized by low body weight, disturbed eating, body image disturbance, anxiety, and interoceptive dysfunction. However, the neural processes underlying these dysfunctions in AN are unclear. This investigation combined an interoceptive pharmacological probe, the peripheral β-adrenergic agonist isoproterenol, with resting-state functional magnetic resonance imaging to examine whether individuals with AN relative to healthy comparison participants show dysregulated neural coupling in central autonomic network brain regions. METHODS Resting-state functional magnetic resonance imaging was performed in 23 weight-restored female participants with AN and 23 age- and body mass index-matched healthy comparison participants before and after receiving isoproterenol infusions. Whole-brain functional connectivity (FC) changes were examined using central autonomic network seeds in the amygdala, anterior insular cortex, posterior cingulate cortex, and ventromedial prefrontal cortex after performing physiological noise correction procedures. RESULTS Relative to healthy comparison participants, adrenergic stimulation caused widespread FC reductions in the AN group between central autonomic network regions and motor, premotor, frontal, parietal, and visual brain regions. Across both groups, these FC changes were inversely associated with trait anxiety (State-Trait Anxiety Inventory-Trait), trait depression (9-item Patient Health Questionnaire), and negative body image perception (Body Shape Questionnaire) measures, but not with changes in resting heart rate. These results were not accounted for by baseline group FC differences. CONCLUSIONS Weight-restored females with AN show a widespread state-dependent disruption of signaling between central autonomic, frontoparietal, and sensorimotor brain networks that facilitate interoceptive representation and visceromotor regulation. Additionally, trait associations between central autonomic network regions and these other brain networks suggest that dysfunctional processing of interoceptive signaling may contribute to affective and body image disturbance in AN.
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Affiliation(s)
- Feliberto De la Cruz
- Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Adam R Teed
- Laureate Institute for Brain Research, Tulsa, Oklahoma
| | - Rachel C Lapidus
- Laureate Institute for Brain Research, Tulsa, Oklahoma; Eating Disorders Center for Treatment and Research, University of California San Diego, San Diego, California
| | | | - Andy Schumann
- Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Martin P Paulus
- Laureate Institute for Brain Research, Tulsa, Oklahoma; Oxley College of Health Sciences, University of Tulsa, Tulsa, Oklahoma
| | - Karl-Jürgen Bär
- Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Sahib S Khalsa
- Laureate Institute for Brain Research, Tulsa, Oklahoma; Oxley College of Health Sciences, University of Tulsa, Tulsa, Oklahoma.
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Farb NAS, Zuo Z, Price CJ. Interoceptive Awareness of the Breath Preserves Attention and Language Networks amidst Widespread Cortical Deactivation: A Within-Participant Neuroimaging Study. eNeuro 2023; 10:ENEURO.0088-23.2023. [PMID: 37316296 PMCID: PMC10295813 DOI: 10.1523/eneuro.0088-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/26/2023] [Accepted: 06/06/2023] [Indexed: 06/16/2023] Open
Abstract
Interoception, the representation of the body's internal state, serves as a foundation for emotion, motivation, and wellbeing. Yet despite its centrality in human experience, the neural mechanisms of interoceptive attention are poorly understood. The Interoceptive/Exteroceptive Attention Task (IEAT) is a novel neuroimaging paradigm that compares behavioral tracking of the respiratory cycle (Active Interoception) to tracking of a visual stimulus (Active Exteroception). Twenty-two healthy participants completed the IEAT during two separate scanning sessions (N = 44) as part of a randomized control trial of mindful awareness in body-oriented therapy (MABT). Compared with Active Exteroception, Active Interoception deactivated somatomotor and prefrontal regions. Greater self-reported interoceptive sensibility (MAIA scale) predicted sparing from deactivation within the anterior cingulate cortex (ACC) and left-lateralized language regions. The right insula, typically described as a primary interoceptive cortex, was only specifically implicated by its deactivation during an exogenously paced respiration condition (Active Matching) relative to self-paced Active Interoception. Psychophysiological interaction (PPI) analysis characterized Active Interoception as promoting greater ACC connectivity with lateral prefrontal and parietal regions commonly referred to as the dorsal attention network (DAN). In contrast to evidence relating accurate detection of liminal interoceptive signals such as the heartbeat to anterior insula activity, interoceptive attention toward salient signals such as the respiratory cycle may involve reduced cortical activity but greater ACC-DAN connectivity, with greater sensibility linked to reduced deactivation within the ACC and language-processing regions.
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Affiliation(s)
- Norman A S Farb
- Department of Psychology, University of Toronto Mississauga, Mississauga, Ontario L5L 1C6, Canada
- Department of Psychological Clinical Sciences, University of Toronto Scarborough, Scarborough, Ontario M1C 1A4, Canada
| | - Zoey Zuo
- Department of Psychological Clinical Sciences, University of Toronto Scarborough, Scarborough, Ontario M1C 1A4, Canada
| | - Cynthia J Price
- Department of Biobehavioral Nursing and Health Informatics, University of Washington, Seattle, WA 98195
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Avery JA, Carrington M, Martin A. A common neural code for representing imagined and inferred tastes. Prog Neurobiol 2023; 223:102423. [PMID: 36805499 PMCID: PMC10040442 DOI: 10.1016/j.pneurobio.2023.102423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 01/11/2023] [Accepted: 02/15/2023] [Indexed: 02/18/2023]
Abstract
Inferences about the taste of foods are a key aspect of our everyday experience of food choice. Despite this, gustatory mental imagery is a relatively under-studied aspect of our mental lives. In the present study, we examined subjects during high-field fMRI as they actively imagined basic tastes and subsequently viewed pictures of foods dominant in those specific taste qualities. Imagined tastes elicited activity in the bilateral dorsal mid-insula, one of the primary cortical regions responsive to the experience of taste. In addition, within this region we reliably decoded imagined tastes according to their dominant quality - sweet, sour, or salty - thus indicating that, like actual taste, imagined taste activates distinct quality-specific neural patterns. Using a cross-task decoding analysis, we found that the neural patterns for imagined tastes and food pictures in the mid-insula were reliably similar and quality-specific, suggesting a common code for representing taste quality regardless of whether explicitly imagined or automatically inferred when viewing food. These findings have important implications for our understanding of the mechanisms of mental imagery and the multimodal nature of presumably primary sensory brain regions like the dorsal mid-insula.
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Affiliation(s)
- Jason A Avery
- Laboratory of Brain and Cognition, National Institute of Mental Health, Bethesda, MD 20892, United States.
| | - Madeline Carrington
- Laboratory of Brain and Cognition, National Institute of Mental Health, Bethesda, MD 20892, United States
| | - Alex Martin
- Laboratory of Brain and Cognition, National Institute of Mental Health, Bethesda, MD 20892, United States
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Zhang M, Yang F, Fan H, Fan F, Wang Z, Xiang H, Huang W, Tan Y, Tan S, Hong LE. Increased connectivity of insula sub-regions correlates with emotional dysregulation in patients with first-episode schizophrenia. Psychiatry Res Neuroimaging 2022; 326:111535. [PMID: 36084435 DOI: 10.1016/j.pscychresns.2022.111535] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 08/05/2022] [Accepted: 08/24/2022] [Indexed: 11/21/2022]
Abstract
Dysfunctional insula is crucial in the development of social cognition deficits, especially emotional dysregulation in patients with schizophrenia. However, function networks of insula sub-regions in schizophrenia are rarely investigated. In this study, functional connectivity between insula sub-regions and whole-brain voxels and its relationship with social cognition ability were investigated in patients with first-episode schizophrenia (FES). This study included 47 patients with FES and 47 healthy controls (HCs). Resting-state functional connectivity (rsFC) was assessed using a seed-based approach, and social cognition was measured by the "managing emotions" branch of the Mayer-Salovey-Caruso Emotional Intelligence Test. Differences in rsFC of insula sub-regions between the two groups were examined. Patients with FES showed increased rsFC between the left anterior insula (AI) and the right inferior frontal gyrus or the right anterior middle cingulate cortex (aMCC) and between the right middle insula and the right aMCC. Moreover, the increased AI-aMCC connectivity correlated negatively with the "managing emotion" scores in patients. This study highlights the altered functional connectivity of insula sub-regions and its correlation with emotional dysregulation in patients with FES. Our findings provide some insights into underlying neuropathological mechanisms associated with emotional regulation deficiency in patients with schizophrenia.
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Affiliation(s)
- Meng Zhang
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing 100096, China
| | - Fude Yang
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing 100096, China.
| | - Hongzhen Fan
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing 100096, China
| | - Fengmei Fan
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing 100096, China
| | - Zhiren Wang
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing 100096, China
| | - Hong Xiang
- Chongqing University Three Gorges Hospital, Chongqing 404000, China
| | - Wenqian Huang
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing 100096, China
| | - Yunlong Tan
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing 100096, China
| | - Shuping Tan
- Beijing HuiLongGuan Hospital, Peking University HuiLongGuan Clinical Medical School, Beijing 100096, China.
| | - L Elliot Hong
- Maryland Psychiatric Research Center, Department of Psychiatry, University of Maryland School of Medicine, Baltimore, MD 21288, United States of America
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12
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Yu X, Cohen ZP, Tsuchiyagaito A, Cochran G, Aupperle RL, Stewart JL, Singh MK, Misaki M, Bodurka J, Paulus MP, Kirlic N. Neurofeedback-Augmented Mindfulness Training Elicits Distinct Responses in the Subregions of the Insular Cortex in Healthy Adolescents. Brain Sci 2022; 12:brainsci12030363. [PMID: 35326319 PMCID: PMC8946655 DOI: 10.3390/brainsci12030363] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/25/2022] [Accepted: 03/03/2022] [Indexed: 02/05/2023] Open
Abstract
Mindfulness training (MT) reduces self-referential processing and promotes interoception, the perception of sensations from inside the body, by increasing one’s awareness of and regulating responses to them. The posterior cingulate cortex (PCC) and the insular cortex (INS) are considered hubs for self-referential processing and interoception, respectively. Although MT has been consistently found to decrease PCC, little is known about how MT relates to INS activity. Understanding links between mindfulness and interoception may be particularly important for informing mental health in adolescence, when neuroplasticity and emergence of psychopathology are heightened. We examined INS activity during real-time functional magnetic resonance imaging neurofeedback-augmented mindfulness training (NAMT) targeting the PCC. Healthy adolescents (N = 37; 16 female) completed the NAMT task, including Focus-on-Breath (MT), Describe (self-referential processing), and Rest conditions, across three neurofeedback runs and two non-neurofeedback runs (Observe, Transfer). Regression coefficients estimated from the generalized linear model were extracted from three INS subregions: anterior (aINS), mid (mINS), and posterior (pINS). Mixed model analyses revealed the main effect of run for Focus-on-Breath vs. Describe contrast in aINS [R2 = 0.39] and pINS [R2 = 0.33], but not mINS [R2 = 0.34]. Post hoc analyses revealed greater aINS activity and reduced pINS activity during neurofeedback runs, and such activities were related to lower self-reported life satisfaction and less pain behavior, respectively. These findings revealed the specific involvement of insula subregions in rtfMRI-nf MT.
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Affiliation(s)
- Xiaoqian Yu
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
| | - Zsofia P. Cohen
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
| | - Aki Tsuchiyagaito
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
| | - Gabriella Cochran
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
| | - Robin L. Aupperle
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
- Department of Community Medicine, University of Tulsa, Tulsa, OK 74104, USA
| | - Jennifer L. Stewart
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
- Department of Community Medicine, University of Tulsa, Tulsa, OK 74104, USA
| | - Manpreet K. Singh
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA;
| | - Masaya Misaki
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
| | - Jerzy Bodurka
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
| | - Martin P. Paulus
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
- Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA 94305, USA;
| | - Namik Kirlic
- Laureate Institute for Brain Research, Tulsa, OK 74136, USA; (X.Y.); (Z.P.C.); (A.T.); (G.C.); (R.L.A.); (J.L.S.); (M.M.); (M.P.P.)
- Correspondence: ; Tel.: +1-918-502-5747
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