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Brehm J, Hoti L, Sander MC, Werkle-Bergner M, Gampe A, Daum MM. Speaker Competence Affects Prefrontal Theta and Occipital Alpha Power during Selective Word Learning in Preschoolers. J Cogn Neurosci 2024; 36:1523-1540. [PMID: 38652097 DOI: 10.1162/jocn_a_02162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
In the present study, we investigated the cognitive processes underlying selective word learning in preschoolers. We measured rhythmic neural activity in the theta (4-8 Hz) and alpha frequency range (7-12 Hz) in 67 four-year-olds. EEG was recorded during anticipation and encoding of novel labeling events performed by a speaker who had previously shown either competence (correct) or incompetence (incorrect) in labeling familiar objects. In both groups, children selected the target object equally often upon recall. However, children observing the incompetent speaker revealed weaker representations of novel words indicated by an increased likelihood for selecting familiar but incorrect items upon recall. Modulations in theta and alpha power suggest differential processing of novel label-object pairs depending on the speakers' competence. In the incompetent, but not the competent, speaker condition, increases in prefrontal theta power during anticipation and encoding were related to increased recall success. Findings suggest that theta power in the present study reflects cognitive control. In both conditions, occipital alpha power-indicating attentional processes-reflected familiarity with novel items, but in opposite directions. In familiar item trials, alpha power was increased observing the incompetent and decreased observing the competent speaker. Thus, both cognitive control and attention processes during word learning are differentially affected by speaker characteristics.
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Affiliation(s)
| | | | | | | | - Anja Gampe
- University of Zurich
- University of Duisburg-Essen
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2
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Tan E, Troller-Renfree SV, Morales S, Buzzell GA, McSweeney M, Antúnez M, Fox NA. Theta activity and cognitive functioning: Integrating evidence from resting-state and task-related developmental electroencephalography (EEG) research. Dev Cogn Neurosci 2024; 67:101404. [PMID: 38852382 PMCID: PMC11214181 DOI: 10.1016/j.dcn.2024.101404] [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: 11/02/2023] [Revised: 05/28/2024] [Accepted: 06/06/2024] [Indexed: 06/11/2024] Open
Abstract
The theta band is one of the most prominent frequency bands in the electroencephalography (EEG) power spectrum and presents an interesting paradox: while elevated theta power during resting state is linked to lower cognitive abilities in children and adolescents, increased theta power during cognitive tasks is associated with higher cognitive performance. Why does theta power, measured during resting state versus cognitive tasks, show differential correlations with cognitive functioning? This review provides an integrated account of the functional correlates of theta across different contexts. We first present evidence that higher theta power during resting state is correlated with lower executive functioning, attentional abilities, language skills, and IQ. Next, we review research showing that theta power increases during memory, attention, and cognitive control, and that higher theta power during these processes is correlated with better performance. Finally, we discuss potential explanations for the differential correlations between resting/task-related theta and cognitive functioning, and offer suggestions for future research in this area.
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Affiliation(s)
- Enda Tan
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD 20740, USA; Neuroscience and Cognitive Science Program, University of Maryland, College Park, MD 20740, USA.
| | | | - Santiago Morales
- Department of Psychology, University of Southern California, CA 90007, USA
| | - George A Buzzell
- Department of Psychology, Florida International University, FL 33199, USA
| | - Marco McSweeney
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD 20740, USA
| | - Martín Antúnez
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD 20740, USA
| | - Nathan A Fox
- Department of Human Development and Quantitative Methodology, University of Maryland, College Park, MD 20740, USA; Neuroscience and Cognitive Science Program, University of Maryland, College Park, MD 20740, USA
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3
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Collomb-Clerc A, Gueguen MCM, Minotti L, Kahane P, Navarro V, Bartolomei F, Carron R, Regis J, Chabardès S, Palminteri S, Bastin J. Human thalamic low-frequency oscillations correlate with expected value and outcomes during reinforcement learning. Nat Commun 2023; 14:6534. [PMID: 37848435 PMCID: PMC10582006 DOI: 10.1038/s41467-023-42380-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 10/09/2023] [Indexed: 10/19/2023] Open
Abstract
Reinforcement-based adaptive decision-making is believed to recruit fronto-striatal circuits. A critical node of the fronto-striatal circuit is the thalamus. However, direct evidence of its involvement in human reinforcement learning is lacking. We address this gap by analyzing intra-thalamic electrophysiological recordings from eight participants while they performed a reinforcement learning task. We found that in both the anterior thalamus (ATN) and dorsomedial thalamus (DMTN), low frequency oscillations (LFO, 4-12 Hz) correlated positively with expected value estimated from computational modeling during reward-based learning (after outcome delivery) or punishment-based learning (during the choice process). Furthermore, LFO recorded from ATN/DMTN were also negatively correlated with outcomes so that both components of reward prediction errors were signaled in the human thalamus. The observed differences in the prediction signals between rewarding and punishing conditions shed light on the neural mechanisms underlying action inhibition in punishment avoidance learning. Our results provide insight into the role of thalamus in reinforcement-based decision-making in humans.
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Affiliation(s)
- Antoine Collomb-Clerc
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, 38000, Grenoble, France
| | - Maëlle C M Gueguen
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, 38000, Grenoble, France
- Department of Psychiatry, Brain Health Institute and University Behavioral Health Care, Rutgers University-New Brunswick, Piscataway, NJ, USA
| | - Lorella Minotti
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, 38000, Grenoble, France
- Neurology Department, University Hospital of Grenoble, Grenoble, France
| | - Philippe Kahane
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, 38000, Grenoble, France
- Neurology Department, University Hospital of Grenoble, Grenoble, France
| | - Vincent Navarro
- Sorbonne Université, Paris Brain Institute - Institut du Cerveau, ICM, INSERM, CNRS, AP-HP, Pitié-Salpêtrière Hospital, Paris, France
| | - Fabrice Bartolomei
- Timone University Hospital, Sleep Unit, Epileptology and Cerebral Rhythmology, University Hospital of Marseille, Marseille, France
- Aix Marseille University, Inserm, Institut de Neurosciences des Systèmes, Marseille, France
| | - Romain Carron
- Aix Marseille University, Inserm, Institut de Neurosciences des Systèmes, Marseille, France
- Timone University Hospital, Department of functional and stereotactic neurosurgery, University Hospital of Marseille, Marseille, France
| | - Jean Regis
- Neurosurgery Department, University Hospital of Marseille, Marseille, France
| | - Stephan Chabardès
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, 38000, Grenoble, France
- Neurosurgery Department, University Hospital of Grenoble, Grenoble, France
| | - Stefano Palminteri
- Laboratoire de Neurosciences Cognitives Computationnelles, Département d'Etudes Cognitives, ENS, PSL, INSERM, Paris, France
| | - Julien Bastin
- Univ. Grenoble Alpes, Inserm, U1216, CHU Grenoble Alpes, Grenoble Institut Neurosciences, 38000, Grenoble, France.
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4
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Venkatesh P, Wolfe C, Lega B. Neuromodulation of the anterior thalamus: Current approaches and opportunities for the future. CURRENT RESEARCH IN NEUROBIOLOGY 2023; 5:100109. [PMID: 38020810 PMCID: PMC10663132 DOI: 10.1016/j.crneur.2023.100109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 08/28/2023] [Accepted: 08/31/2023] [Indexed: 12/01/2023] Open
Abstract
The role of thalamocortical circuits in memory has driven a recent burst of scholarship, especially in animal models. Investigating this circuitry in humans is more challenging. And yet, the development of new recording and stimulation technologies deployed for clinical indications has created novel opportunities for data collection to elucidate the cognitive roles of thalamic structures. These technologies include stereoelectroencephalography (SEEG), deep brain stimulation (DBS), and responsive neurostimulation (RNS), all of which have been applied to memory-related thalamic regions, specifically for seizure localization and treatment. This review seeks to summarize the existing applications of neuromodulation of the anterior thalamic nuclei (ANT) and highlight several devices and their capabilities that can allow cognitive researchers to design experiments to assay its functionality. Our goal is to introduce to investigators, who may not be familiar with these clinical devices, the capabilities, and limitations of these tools for understanding the neurophysiology of the ANT as it pertains to memory and other behaviors. We also briefly cover the targeting of other thalamic regions including the centromedian (CM) nucleus, dorsomedial (DM) nucleus, and pulvinar, with associated potential avenues of experimentation.
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Affiliation(s)
- Pooja Venkatesh
- Department of Neurosurgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Cody Wolfe
- Department of Neurosurgery, University of Texas Southwestern, Dallas, TX, 75390, USA
| | - Bradley Lega
- Department of Neurosurgery, University of Texas Southwestern, Dallas, TX, 75390, USA
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5
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Hinault T, Baillet S, Courtney SM. Age-related changes of deep-brain neurophysiological activity. Cereb Cortex 2023; 33:3960-3968. [PMID: 35989316 PMCID: PMC10068274 DOI: 10.1093/cercor/bhac319] [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: 05/24/2022] [Revised: 07/21/2022] [Accepted: 07/22/2022] [Indexed: 11/12/2022] Open
Abstract
Cognitive decline with age is associated with brain atrophy and reduced brain activations, but the underlying neurophysiological mechanisms are unclear, especially in deeper brain structures primarily affected by healthy aging or neurodegenerative processes. Here, we characterize time-resolved, resting-state magnetoencephalography activity of the hippocampus and subcortical brain regions in a large cohort of healthy young (20-30 years) and older (70-80 years) volunteers from the Cam-CAN (Cambridge Centre for Ageing and Neuroscience) open repository. The data show age-related changes in both rhythmic and arrhythmic signal strength in multiple deeper brain regions, including the hippocampus, striatum, and thalamus. We observe a slowing of neural activity across deeper brain regions, with increased delta and reduced gamma activity, which echoes previous reports of cortical slowing. We also report reduced occipito-parietal alpha peak associated with increased theta-band activity in the hippocampus, an effect that may reflect compensatory processes as theta activity, and slope of arrhythmic activity were more strongly expressed when short-term memory performances were preserved. Overall, this study advances the understanding of the biological nature of inter-individual variability in aging. The data provide new insight into how hippocampus and subcortical neurophysiological activity evolve with biological age, and highlight frequency-specific effects associated with cognitive decline versus cognitive maintenance.
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Affiliation(s)
- T Hinault
- U1077 INSERM-EPHE-UNICAEN, Caen 14032, France
| | - S Baillet
- McConnell Brain Imaging Centre, Montreal Neurological Institute, McGill University, Montréal QC, H3A 2B4, Canada
| | - S M Courtney
- Department of Psychological and Brain Sciences, Johns Hopkins University, Baltimore, MD 21218, United States
- F.M. Kirby Research Center, Kennedy Krieger Institute, Baltimore, MD 21205, United States
- Department of Neuroscience, Johns Hopkins University, MD 21205, United States
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6
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Aggleton JP, Nelson AJD, O'Mara SM. Time to retire the serial Papez circuit: Implications for space, memory, and attention. Neurosci Biobehav Rev 2022; 140:104813. [PMID: 35940310 PMCID: PMC10804970 DOI: 10.1016/j.neubiorev.2022.104813] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/20/2022] [Accepted: 08/01/2022] [Indexed: 11/26/2022]
Abstract
After more than 80 years, Papez serial circuit remains a hugely influential concept, initially for emotion, but in more recent decades, for memory. Here, we show how this circuit is anatomically and mechanistically naïve as well as outdated. We argue that a new conceptualisation is necessitated by recent anatomical and functional findings that emphasize the more equal, working partnerships between the anterior thalamic nuclei and the hippocampal formation, along with their neocortical interactions in supporting, episodic memory. Furthermore, despite the importance of the anterior thalamic for mnemonic processing, there is growing evidence that these nuclei support multiple aspects of cognition, only some of which are directly associated with hippocampal function. By viewing the anterior thalamic nuclei as a multifunctional hub, a clearer picture emerges of extra-hippocampal regions supporting memory. The reformulation presented here underlines the need to retire Papez serially processing circuit.
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Affiliation(s)
- John P Aggleton
- School of Psychology, Cardiff University, 70 Park Place, Cardiff CF10 3AT, Wales, UK.
| | - Andrew J D Nelson
- School of Psychology, Cardiff University, 70 Park Place, Cardiff CF10 3AT, Wales, UK
| | - Shane M O'Mara
- School of Psychology and Trinity College Institute of Neuroscience, Trinity College Dublin, The University of Dublin, Dublin D02 PN40, Ireland
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7
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Griffiths BJ, Zaehle T, Repplinger S, Schmitt FC, Voges J, Hanslmayr S, Staudigl T. Rhythmic interactions between the mediodorsal thalamus and prefrontal cortex precede human visual perception. Nat Commun 2022; 13:3736. [PMID: 35768419 PMCID: PMC9243108 DOI: 10.1038/s41467-022-31407-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 06/14/2022] [Indexed: 12/03/2022] Open
Abstract
The thalamus is much more than a simple sensory relay. High-order thalamic nuclei, such as the mediodorsal thalamus, exert a profound influence over animal cognition. However, given the difficulty of directly recording from the thalamus in humans, next-to-nothing is known about thalamic and thalamocortical contributions to human cognition. To address this, we analysed simultaneously-recorded thalamic iEEG and whole-head MEG in six patients (plus MEG recordings from twelve healthy controls) as they completed a visual detection task. We observed that the phase of both ongoing mediodorsal thalamic and prefrontal low-frequency activity was predictive of perceptual performance. Critically however, mediodorsal thalamic activity mediated prefrontal contributions to perceptual performance. These results suggest that it is thalamocortical interactions, rather than cortical activity alone, that is predictive of upcoming perceptual performance and, more generally, highlights the importance of accounting for the thalamus when theorising about cortical contributions to human cognition.
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Affiliation(s)
- Benjamin J Griffiths
- Department of Psychology, Ludwig-Maximilians-Universität München, Munich, Germany
| | - Tino Zaehle
- Department of Neurology, Otto-von Guericke-University, Magdeburg, Germany
| | - Stefan Repplinger
- Department of Neurology, Otto-von Guericke-University, Magdeburg, Germany
- ESF International Graduate School on Analysis, Imaging and Modelling of Neuronal and Inflammatory Processes, Otto-von-Guericke University, Magdeburg, Germany
| | | | - Jürgen Voges
- Department of Stereotactic Neurosurgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Simon Hanslmayr
- Centre for Cognitive Neuroimaging, Institute for Neuroscience and Psychology, University of Glasgow, Glasgow, UK
| | - Tobias Staudigl
- Department of Psychology, Ludwig-Maximilians-Universität München, Munich, Germany.
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8
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Lee KM, Ferreira-Santos F, Satpute AB. Predictive processing models and affective neuroscience. Neurosci Biobehav Rev 2021; 131:211-228. [PMID: 34517035 PMCID: PMC9074371 DOI: 10.1016/j.neubiorev.2021.09.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 02/10/2021] [Accepted: 09/07/2021] [Indexed: 01/17/2023]
Abstract
The neural bases of affective experience remain elusive. Early neuroscience models of affect searched for specific brain regions that uniquely carried out the computations that underlie dimensions of valence and arousal. However, a growing body of work has failed to identify these circuits. Research turned to multivariate analyses, but these strategies, too, have made limited progress. Predictive processing models offer exciting new directions to address this problem. Here, we use predictive processing models as a lens to critique prevailing functional neuroimaging research practices in affective neuroscience. Our review highlights how much work relies on rigid assumptions that are inconsistent with a predictive processing approach. We outline the central aspects of a predictive processing model and draw out their implications for research in affective and cognitive neuroscience. Predictive models motivate a reformulation of "reverse inference" in cognitive neuroscience, and placing a greater emphasis on external validity in experimental design.
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Affiliation(s)
- Kent M Lee
- Northeastern University, 360 Huntington Ave, 125 NI, Boston, MA 02118, USA.
| | - Fernando Ferreira-Santos
- Laboratory of Neuropsychophysiology, Faculty of Psychology and Education Sciences, University of Porto, Portugal
| | - Ajay B Satpute
- Northeastern University, 360 Huntington Ave, 125 NI, Boston, MA 02118, USA
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9
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Liu J, Yu T, Wu J, Pan Y, Tan Z, Liu R, Wang X, Ren L, Wang L. Anterior thalamic stimulation improves working memory precision judgments. Brain Stimul 2021; 14:1073-1080. [PMID: 34284167 DOI: 10.1016/j.brs.2021.07.006] [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: 02/10/2021] [Revised: 06/25/2021] [Accepted: 07/15/2021] [Indexed: 10/20/2022] Open
Abstract
BACKGROUND The anterior nucleus of thalamus (ANT) has been suggested as an extended hippocampal system. The circuit of ANT and hippocampus has been widely demonstrated to be associated with memory function. Both lesions to each region and disrupting inter-regional information flow can induce working memory impairment. However, the role of this circuit in working memory precision remains unknown. OBJECTIVE To test the role of the hippocampal-anterior thalamic pathway in working memory precision, we delivered intracranially electrical stimulation to the ANT. We hypothesize that ANT stimulation can improve working memory precision. METHODS Presurgical epilepsy patients with depth electrodes in ANT and hippocampus were recruited to perform a color-recall working memory task. Participants were instructed to point out the color they were supposed to recall by clicking a point on the color wheel, while the intracranial EEG data were synchronously recorded. For randomly selected half trials, a bipolar electrical stimulation was delivered to the ANT electrodes. RESULTS We found that compared to non-stimulation trials, working memory precision judgements were significantly improved for stimulation trials. ANT electrical stimulation significantly increased spectral power of gamma (30-100 Hz) oscillations and decreased interictal epileptiform discharges (IED) in the hippocampus. Moreover, the increased gamma power during the pre-stimulus and retrieval period predicted the improvement of working memory precision judgements. CONCLUSION ANT electrical stimulation can improve working memory precision judgements and modulate hippocampal gamma activity, providing direct evidence on the role of the human hippocampal-anterior thalamic axis in working memory precision.
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Affiliation(s)
- Jiali Liu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Tao Yu
- Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China; Comprehensive Epilepsy Center of Beijing, The Beijing Key Laboratory of Neuromodulation, Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Jinfeng Wu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Yali Pan
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China
| | - Zheng Tan
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Ruobing Liu
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Xueyuan Wang
- Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China; Comprehensive Epilepsy Center of Beijing, The Beijing Key Laboratory of Neuromodulation, Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Liankun Ren
- Beijing Institute of Functional Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing, China; Comprehensive Epilepsy Center of Beijing, The Beijing Key Laboratory of Neuromodulation, Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Liang Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China; Department of Psychology, University of Chinese Academy of Sciences, Beijing, China.
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10
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Cohen N, Ben-Yakov A, Weber J, Edelson MG, Paz R, Dudai Y. Prestimulus Activity in the Cingulo-Opercular Network Predicts Memory for Naturalistic Episodic Experience. Cereb Cortex 2021; 30:1902-1913. [PMID: 31740917 DOI: 10.1093/cercor/bhz212] [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: 08/24/2018] [Revised: 08/19/2019] [Accepted: 08/21/2019] [Indexed: 11/13/2022] Open
Abstract
Human memory is strongly influenced by brain states occurring before an event, yet we know little about the underlying mechanisms. We found that activity in the cingulo-opercular network (including bilateral anterior insula [aI] and anterior prefrontal cortex [aPFC]) seconds before an event begins can predict whether this event will subsequently be remembered. We then tested how activity in the cingulo-opercular network shapes memory performance. Our findings indicate that prestimulus cingulo-opercular activity affects memory performance by opposingly modulating subsequent activity in two sets of regions previously linked to encoding and retrieval of episodic information. Specifically, higher prestimulus cingulo-opercular activity was associated with a subsequent increase in activity in temporal regions previously linked to encoding and with a subsequent reduction in activity within a set of regions thought to play a role in retrieval and self-referential processing. Together, these findings suggest that prestimulus attentional states modulate memory for real-life events by enhancing encoding and possibly by dampening interference from competing memory substrates.
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Affiliation(s)
- Noga Cohen
- Department of Special Education and The Edmond J. Safra Brain Research Center for the Study of Learning Disabilities, University of Haifa, Haifa 3498838, Israel
| | - Aya Ben-Yakov
- MRC Cognition and Brain Sciences Unit, University of Cambridge, Cambridge, CB2 2EF, UK
| | - Jochen Weber
- Department of Psychology, Columbia University, New York, NY, 10027, USA
| | - Micah G Edelson
- Department of Economics, University of Zurich, Zürich, CH-8032, Switzerland
| | - Rony Paz
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Yadin Dudai
- Department of Neurobiology, Weizmann Institute of Science, Rehovot, 76100, Israel
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11
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Sweeney-Reed CM, Buentjen L, Voges J, Schmitt FC, Zaehle T, Kam JWY, Kaufmann J, Heinze HJ, Hinrichs H, Knight RT, Rugg MD. The role of the anterior nuclei of the thalamus in human memory processing. Neurosci Biobehav Rev 2021; 126:146-158. [PMID: 33737103 DOI: 10.1016/j.neubiorev.2021.02.046] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 02/19/2021] [Accepted: 02/24/2021] [Indexed: 12/13/2022]
Abstract
Extensive neuroanatomical connectivity between the anterior thalamic nuclei (ATN) and hippocampus and neocortex renders them well-placed for a role in memory processing, and animal, lesion, and neuroimaging studies support such a notion. The deep location and small size of the ATN have precluded their real-time electrophysiological investigation during human memory processing. However, ATN electrophysiological recordings from patients receiving electrodes implanted for deep brain stimulation for pharmacoresistant focal epilepsy have enabled high temporal resolution study of ATN activity. Theta frequency synchronization of ATN and neocortical oscillations during successful memory encoding, enhanced phase alignment, and coupling between ATN local gamma frequency activity and frontal neocortical and ATN theta oscillations provide evidence of an active role for the ATN in memory encoding, potentially integrating information from widespread neocortical sources. Greater coupling of a broader gamma frequency range with theta oscillations at rest than during memory encoding provides additional support for the hypothesis that the ATN play a role in selecting local, task-relevant high frequency activity associated with particular features of a memory trace.
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Affiliation(s)
- Catherine M Sweeney-Reed
- Neurocybernetics and Rehabilitation, Dept. of Neurology, Otto-von-Guericke University Magdeburg, Leipziger Straße 44, 39120, Magdeburg, Germany; Center for Behavioral Brain Sciences, Otto-von-Guericke University, Magdeburg, Germany.
| | - Lars Buentjen
- Dept. of Stereotactic Neurosurgery, Otto-von-Guericke University, Magdeburg, Germany
| | - Jürgen Voges
- Center for Behavioral Brain Sciences, Otto-von-Guericke University, Magdeburg, Germany; Dept. of Stereotactic Neurosurgery, Otto-von-Guericke University, Magdeburg, Germany
| | | | - Tino Zaehle
- Center for Behavioral Brain Sciences, Otto-von-Guericke University, Magdeburg, Germany; Dept. of Neurology, Otto-von-Guericke University, Magdeburg, Germany
| | - Julia W Y Kam
- Department of Psychology, University of Calgary, Calgary, Canada; Hotchkiss Brain Institute, University of Calgary, Calgary, Canada; Helen Wills Neuroscience Institute, University of California - Berkeley, Berkeley, CA, USA
| | - Jörn Kaufmann
- Dept. of Neurology, Otto-von-Guericke University, Magdeburg, Germany
| | - Hans-Jochen Heinze
- Center for Behavioral Brain Sciences, Otto-von-Guericke University, Magdeburg, Germany; Dept. of Neurology, Otto-von-Guericke University, Magdeburg, Germany; Dept. of Behavioral Neurology, Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Hermann Hinrichs
- Center for Behavioral Brain Sciences, Otto-von-Guericke University, Magdeburg, Germany; Dept. of Neurology, Otto-von-Guericke University, Magdeburg, Germany; Dept. of Behavioral Neurology, Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Robert T Knight
- Helen Wills Neuroscience Institute, University of California - Berkeley, Berkeley, CA, USA; Department of Psychology, University of California, Berkeley, Berkeley, CA, USA
| | - Michael D Rugg
- Center for Vital Longevity and School of Behavioral and Brain Sciences, University of Texas, Dallas, TX, USA
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12
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Dillingham CM, Milczarek MM, Perry JC, Vann SD. Time to put the mammillothalamic pathway into context. Neurosci Biobehav Rev 2021; 121:60-74. [PMID: 33309908 PMCID: PMC8137464 DOI: 10.1016/j.neubiorev.2020.11.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 10/10/2020] [Accepted: 11/13/2020] [Indexed: 12/11/2022]
Abstract
The medial diencephalon, in particular the mammillary bodies and anterior thalamic nuclei, has long been linked to memory and amnesia. The mammillary bodies provide a dense input into the anterior thalamic nuclei, via the mammillothalamic tract. In both animal models, and in patients, lesions of the mammillary bodies, mammillothalamic tract and anterior thalamic nuclei all produce severe impairments in temporal and contextual memory, yet it is uncertain why these regions are critical. Mounting evidence from electrophysiological and neural imaging studies suggests that mammillothalamic projections exercise considerable distal influence over thalamo-cortical and hippocampo-cortical interactions. Here, we outline how damage to the mammillary body-anterior thalamic axis, in both patients and animal models, disrupts behavioural performance on tasks that relate to contextual ("where") and temporal ("when") processing. Focusing on the medial mammillary nuclei as a possible 'theta-generator' (through their interconnections with the ventral tegmental nucleus of Gudden) we discuss how the mammillary body-anterior thalamic pathway may contribute to the mechanisms via which the hippocampus and neocortex encode representations of experience.
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Affiliation(s)
- Christopher M Dillingham
- School of Psychology, Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, CF10 3AT, UK
| | - Michal M Milczarek
- School of Psychology, Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, CF10 3AT, UK
| | - James C Perry
- School of Psychology, Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, CF10 3AT, UK
| | - Seralynne D Vann
- School of Psychology, Neuroscience and Mental Health Research Institute, Cardiff University, Cardiff, CF10 3AT, UK.
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13
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Liu ES, Koen JD, Rugg MD. Effects of Age on Prestimulus Neural Activity Predictive of Successful Memory Encoding: An fMRI Study. Cereb Cortex 2021; 31:917-932. [PMID: 32959047 DOI: 10.1093/cercor/bhaa265] [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: 05/18/2020] [Revised: 07/17/2020] [Accepted: 08/13/2020] [Indexed: 11/13/2022] Open
Abstract
Prestimulus subsequent memory effects (SMEs)-differences in neural activity preceding the onset of study items that are predictive of later memory performance-have consistently been reported in young adults. The present functional magnetic resonance imaging experiment investigated potential age-related differences in prestimulus SMEs. During study, healthy young and older participants made one of two semantic judgments on images, with the judgment signaled by a preceding cue. In test phase, participants first made an item recognition judgment and, for each item judged old, a source memory judgment. Age-invariant prestimulus SMEs were observed in left dorsomedial prefrontal cortex, left hippocampus, and right subgenual cortex. In each case, the effects reflected lower blood oxygen level dependent signal for later recognized items, regardless of source accuracy, than for unrecognized items. A similar age-invariant pattern was observed in left orbitofrontal cortex, but this effect was specific to items attracting a correct source response compared to unrecognized items. In contrast, the left angular gyrus and fusiform cortex demonstrated negative prestimulus SMEs that were exclusive to young participants. The findings indicate that age differences in prestimulus SMEs are regionally specific and suggest that prestimulus SMEs reflect multiple cognitive processes, only some of which are vulnerable to advancing age.
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Affiliation(s)
- E Song Liu
- Center for Vital Longevity, University of Texas at Dallas, Dallas, TX 75235, USA.,School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, TX 75080, USA
| | - Joshua D Koen
- Department of Psychology, University of Notre Dame, Notre Dame, IN 46556, USA
| | - Michael D Rugg
- Center for Vital Longevity, University of Texas at Dallas, Dallas, TX 75235, USA.,School of Behavioral and Brain Sciences, University of Texas at Dallas, Richardson, TX 75080, USA.,School of Psychology, University of East Anglia, Norwich NR4 7TJ, UK
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14
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Weidemann CT, Kahana MJ. Neural measures of subsequent memory reflect endogenous variability in cognitive function. J Exp Psychol Learn Mem Cogn 2020; 47:641-651. [PMID: 33151720 DOI: 10.1037/xlm0000966] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Human cognition exhibits a striking degree of variability: Sometimes we rapidly forge new associations whereas at other times new information simply does not stick. Correlations between neural activity during encoding and subsequent retrieval performance have implicated such "subsequent memory effects" (SMEs) as important for understanding the neural basis of memory formation. Uncontrolled variability in external factors that also predict memory performance, however, confounds the interpretation of these effects. By controlling for a comprehensive set of external variables, we investigated the extent to which neural correlates of successful memory encoding reflect variability in endogenous brain states. We show that external variables that reliably predict memory performance have relatively small effects on electroencephalographic (EEG) correlates of successful memory encoding. Instead, the brain activity that is diagnostic of successful encoding primarily reflects fluctuations in endogenous neural activity. These findings link neural activity during learning to endogenous states that drive variability in human cognition. (PsycInfo Database Record (c) 2021 APA, all rights reserved).
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15
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Johnson EL, Kam JWY, Tzovara A, Knight RT. Insights into human cognition from intracranial EEG: A review of audition, memory, internal cognition, and causality. J Neural Eng 2020; 17:051001. [PMID: 32916678 PMCID: PMC7731730 DOI: 10.1088/1741-2552/abb7a5] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
By recording neural activity directly from the human brain, researchers gain unprecedented insight into how neurocognitive processes unfold in real time. We first briefly discuss how intracranial electroencephalography (iEEG) recordings, performed for clinical practice, are used to study human cognition with the spatiotemporal and single-trial precision traditionally limited to non-human animal research. We then delineate how studies using iEEG have informed our understanding of issues fundamental to human cognition: auditory prediction, working and episodic memory, and internal cognition. We also discuss the potential of iEEG to infer causality through the manipulation or 'engineering' of neurocognitive processes via spatiotemporally precise electrical stimulation. We close by highlighting limitations of iEEG, potential of burgeoning techniques to further increase spatiotemporal precision, and implications for future research using intracranial approaches to understand, restore, and enhance human cognition.
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Affiliation(s)
- Elizabeth L Johnson
- Helen Wills Neuroscience Institute, University of California, Berkeley, United States of America
- Life-Span Cognitive Neuroscience Program, Institute of Gerontology, Wayne State University, United States of America
| | - Julia W Y Kam
- Helen Wills Neuroscience Institute, University of California, Berkeley, United States of America
- Department of Psychology, University of Calgary, Canada
- Hotchkiss Brain Institute, University of Calgary, Canada
| | - Athina Tzovara
- Helen Wills Neuroscience Institute, University of California, Berkeley, United States of America
- Institute for Computer Science, University of Bern, Switzerland
- Sleep Wake Epilepsy Center | NeuroTec, Department of Neurology, Inselspital, Bern University Hospital, University of Bern, Switzerland
| | - Robert T Knight
- Helen Wills Neuroscience Institute, University of California, Berkeley, United States of America
- Department of Psychology, University of California, Berkeley, United States of America
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16
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Schreiner T, Staudigl T. Electrophysiological signatures of memory reactivation in humans. Philos Trans R Soc Lond B Biol Sci 2020; 375:20190293. [PMID: 32248789 PMCID: PMC7209925 DOI: 10.1098/rstb.2019.0293] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The reactivation of neural activity that was present during the encoding of an event is assumed to be essential for human episodic memory retrieval and the consolidation of memories during sleep. Pioneering animal work has already established a crucial role of memory reactivation to prepare and guide behaviour. Research in humans is now delineating the neural processes involved in memory reactivation during both wakefulness and sleep as well as their functional significance. Focusing on the electrophysiological signatures of memory reactivation in humans during both memory retrieval and sleep-related consolidation, this review provides an overview of the state of the art in the field. We outline recent advances, methodological developments and open questions and specifically highlight commonalities and differences in the neuronal signatures of memory reactivation during the states of wakefulness and sleep. This article is part of the Theo Murphy meeting issue ‘Memory reactivation: replaying events past, present and future’.
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Affiliation(s)
- Thomas Schreiner
- School of Psychology and Centre for Human Brain Health, University of Birmingham, Birmingham, UK.,Department of Psychology, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Tobias Staudigl
- Department of Psychology, Ludwig-Maximilians-University Munich, Munich, Germany
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17
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Wynn SC, Kessels RPC, Schutter DJLG. Electrocortical indices of subjectively perceived confidence in episodic memory. Int J Psychophysiol 2020; 151:18-24. [PMID: 32057779 DOI: 10.1016/j.ijpsycho.2020.02.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/09/2020] [Accepted: 02/10/2020] [Indexed: 10/25/2022]
Abstract
Electrophysiological studies on recognition memory have identified several brain signals that are associated with subjective perceived confidence. However, the extent these brain signals reflect a generic process and are independent of the type of information recognized remains an open question. To address this issue, twenty-seven healthy volunteers performed an episodic memory task while their electro-encephalogram (EEG) was recorded. Participants encoded a set of abstract pictures, and subsequently rated their confidence on recognition decisions. Similar to results reported in previous studies using concrete words, we found retrieval-related theta power, FN400 and late positive component (LPC) effects. In contrast to previous studies using verbal material, a subsequent memory effect for encoding-related evoked theta power, sensitive to subjectively perceived memory confidence, was observed. Our findings suggest that brain signals that are associated with subjectively perceived confidence reflect specific encoding, but generic retrieval processes.
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Affiliation(s)
- Syanah C Wynn
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, the Netherlands; Department of Psychology, Bowdoin College, Brunswick, ME, United States.
| | - Roy P C Kessels
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, the Netherlands
| | - Dennis J L G Schutter
- Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Utrecht, the Netherlands
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18
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Effects of parietal exogenous oscillatory field potentials on subjectively perceived memory confidence. Neurobiol Learn Mem 2019; 168:107140. [PMID: 31843652 DOI: 10.1016/j.nlm.2019.107140] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 11/11/2019] [Accepted: 12/12/2019] [Indexed: 11/20/2022]
Abstract
Previous research suggests involvement of parietal theta (3-7 Hz) power in subjectively perceived memory confidence during retrieval. To obtain further insights into the role of parietal theta activity during retrieval in processes associated with performance and confidence, fifty-four healthy volunteers performed a recognition memory task in a within-subject sham controlled transcranial alternating current stimulation (tACS) study. Participants encoded a subset of words at specific on-screen locations. During the retrieval phase accuracy and subjectively perceived confidence on item and source memory were evaluated while administering exogenous alternating field potentials. Results showed that 3.5 Hz tACS decreased subjectively perceived memory confidence as compared to sham and 8 Hz tACS. No tACS effects were found on accuracy regarding item and source memory. Our findings suggest that theta activity in the parietal cortex is implicated in subjectively perceived confidence in word recognition.
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19
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Wagner IC, van Buuren M, Fernández G. Thalamo-cortical coupling during encoding and consolidation is linked to durable memory formation. Neuroimage 2019; 197:80-92. [DOI: 10.1016/j.neuroimage.2019.04.055] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 04/19/2019] [Indexed: 01/08/2023] Open
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20
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Phase of electroencephalography theta oscillation during stimulus encoding affects accuracy of memory recall. Neuroreport 2019; 30:404-408. [PMID: 30807530 DOI: 10.1097/wnr.0000000000001215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Oscillatory activity is a ubiquitous property of brain signals, and yet relatively few studies have investigated how the phase of such ongoing oscillations affects our cognition. One of the main findings in this field is that the phase of electroencephalography (EEG) in the alpha band can affect perception of milliseconds-long stimuli. However, the importance of the phase of EEG for processing more naturalistic stimuli, which have a much longer duration, is still not clear. To address this question here, we presented word-nonword pairs, each of which was visible for 5 s and measured the effect of EEG phase during stimulus onset on later memory recall. The task consisted of an encoding (learning) phase in which 20 novel word-nonword pairs were presented, followed by a test phase in which participants were shown one of the seen words with four target nonwords to choose from. We found that memory recall performance was higher when the words during encoding were presented at a descending phase of the theta oscillation. This effect was the strongest in the frontal cortex. These results suggest that the phase of ongoing cortical activity can affect memorization of seconds-long stimuli that are an integral part of many daily tasks.
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21
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Eick CM, Ahmadi K, Sweeney-Reed CM, Hoffmann MB. Interocular transfer of visual memory - Influence of visual impairment and abnormalities of the optic chiasm. Neuropsychologia 2019; 129:171-178. [PMID: 30951737 DOI: 10.1016/j.neuropsychologia.2019.03.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 03/08/2019] [Accepted: 03/26/2019] [Indexed: 12/13/2022]
Abstract
Due to an increased crossing of the optic nerve fibers at the optic chiasm in albinism, the visual cortex receives largely monocular input from the contralateral eye. Here we investigated whether this obstruction of binocular integration at the cortical input stage also impacts on interocular information exchange at the high processing level of visual memory. Interocular transfer (IOT) of visual memory retrieval was tested psychophysically after monocular encoding in 8 albinotic participants and 24 healthy controls. The retrieval performance (hit rate, reaction time, d') was determined when using the same or different eye at encoding. To assess the effect of reduced visual acuity (VA) on recognition, we simulated interocular acuity differences (IOA) in two healthy control groups (each n = 8), i.e., with large (VA: 0.89 vs. 0.12) and small simulated interocular difference (VA: 0.25 vs. 0.12), with the latter matched to that observed in the albinotic participants (VA: 0.20 vs. 0.15). A significant decrease in retrieval performance was observed in controls with simulated strongly reduced VA in one eye (p < 0.0001). For the other conditions and groups, including the albinotic participants, no dependence on VA and no significant difference between using the same or different eye was observed. This indicates interocular transfer and hence interocular information exchange in human albinism. These findings thus provide insights into the scope of plasticity of binocular information processing and inter-hemispherical information flow.
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Affiliation(s)
- Charlotta M Eick
- Department of Ophthalmology, Otto-von-Guericke-University Magdeburg, Germany; Institute for Biology, Otto-von-Guericke-University Magdeburg, Germany; Biological Psychology and Cognitive Neuroscience, Friedrich-Schiller-University, Jena, Germany
| | - Khazar Ahmadi
- Department of Ophthalmology, Otto-von-Guericke-University Magdeburg, Germany
| | - Catherine M Sweeney-Reed
- Neurocybernetics and Rehabilitation, Department of Neurology, Otto-von-Guericke-University Magdeburg, Germany
| | - Michael B Hoffmann
- Department of Ophthalmology, Otto-von-Guericke-University Magdeburg, Germany; Center for Behavioural Brain Sciences, Magdeburg, Germany.
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22
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Sadeh T, Chen J, Goshen-Gottstein Y, Moscovitch M. Overlap between hippocampal pre-encoding and encoding patterns supports episodic memory. Hippocampus 2019; 29:836-847. [PMID: 30779457 DOI: 10.1002/hipo.23079] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2018] [Revised: 12/15/2018] [Accepted: 01/15/2019] [Indexed: 01/13/2023]
Abstract
It is well-established that whether the information will be remembered or not depends on the extent to which the learning context is reinstated during post-encoding rest and/or at retrieval. It has yet to be determined, however, if the fundamental importance of contextual reinstatement to memory extends to periods of spontaneous neurocognitive activity prior to learning. We thus asked whether memory performance can be predicted by the extent to which spontaneous pre-encoding neural patterns resemble patterns elicited during encoding. Individuals studied and retrieved lists of words while undergoing fMRI-scanning. Multivoxel hippocampal patterns during resting periods prior to encoding resembled hippocampal patterns at encoding most strongly for items that were subsequently remembered. Furthermore, across subjects, the magnitude of similarity correlated with a behavioral measure of episodic recall. The results indicate that the neural context before learning is an important determinant of memory.
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Affiliation(s)
- Talya Sadeh
- Department of Cognitive and Brain Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel.,Zlotowski Center for Neuroscience, Ben-Gurion University of the Negev, Beer Sheva, Israel.,Department of Psychology, Ben-Gurion University of the Negev, Beer Sheva, Israel.,Department of Psychology, University of Toronto, Toronto, Ontario, Canada.,Rotman Research Institute, Baycrest Centre, Toronto, Ontario, Canada
| | - Janice Chen
- Psychological & Brain Sciences, Johns Hopkins University, Baltimore, Maryland
| | | | - Morris Moscovitch
- Department of Psychology, University of Toronto, Toronto, Ontario, Canada.,Rotman Research Institute, Baycrest Centre, Toronto, Ontario, Canada
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23
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Jun S, Kim JS, Chung CK. Direct Stimulation of Human Hippocampus During Verbal Associative Encoding Enhances Subsequent Memory Recollection. Front Hum Neurosci 2019; 13:23. [PMID: 30804768 PMCID: PMC6371751 DOI: 10.3389/fnhum.2019.00023] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 01/18/2019] [Indexed: 11/16/2022] Open
Abstract
Previous studies have reported conflicting results regarding the effect of direct electrical stimulation of the human hippocampus on memory performance. A major function of the hippocampus is to form associations between individual elements of experience. However, the effect of direct hippocampal stimulation on associative memory remains largely inconclusive, with most evidence coming from studies employing non-invasive stimulation. Here, we therefore tested the hypothesis that direct electrical stimulation of the hippocampus specifically enhances hippocampal-dependent associative memory. To test this hypothesis, we recruited surgical patients with implanted subdural electrodes to perform a word pair memory task during which the hippocampus was stimulated. Our results indicate that stimulation of the hippocampus during encoding helped to build strong associative memories and enhanced recollection in subsequent trials. Moreover, stimulation significantly increased theta power in the lateral middle temporal cortex during successful memory encoding. Overall, our findings indicate that hippocampal stimulation positively impacts performance during a word pair memory task, suggesting that successful memory encoding involves the temporal cortex, which may act together with the hippocampus.
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Affiliation(s)
- Soyeon Jun
- Department of Brain and Cognitive Sciences, Seoul National University, Seoul, South Korea
| | - June Sic Kim
- Department of Brain and Cognitive Sciences, Seoul National University, Seoul, South Korea.,Research Institute of Basic Sciences, Seoul National University, Seoul, South Korea
| | - Chun Kee Chung
- Department of Brain and Cognitive Sciences, Seoul National University, Seoul, South Korea.,Department of Neurosurgery, Seoul National University Hospital, Seoul, South Korea
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24
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Behavioural oscillations in visual orientation discrimination reveal distinct modulation rates for both sensitivity and response bias. Sci Rep 2019; 9:1115. [PMID: 30718679 PMCID: PMC6362039 DOI: 10.1038/s41598-018-37918-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 12/12/2018] [Indexed: 11/08/2022] Open
Abstract
Perception is modulated by ongoing brain oscillations. Psychophysical studies show a voluntary action can synchronize oscillations, producing rhythmical fluctuations of visual contrast sensitivity. We used signal detection to examine whether voluntary action could also synchronize oscillations in decision criterion, and whether that was due to the oscillations of perceptual bias or of motor bias. Trials started with a voluntary button-press. After variable time lags, a grating at threshold contrast was presented briefly and participants discriminated its orientation (45° or −45°) with a mouse-click. Two groups of participants completed the experiment with opposite mappings between grating orientations and response buttons. We calculated sensitivity and criterion in the 800 ms period following the button press. To test for oscillations, we fitted first-order Fourier series to these time series. Alpha oscillations occurred in both sensitivity and criterion at different frequencies: ~8 Hz (sensitivity) and ~10 Hz (criterion). Sensitivity oscillations had the same phase for both stimulus-response mappings. Criterion oscillations, however, showed a strong anti-phase relationship when the two groups were compared, suggesting a motor bias rather than perceptual bias. Our findings suggest two roles for alpha oscillations: in sensitivity, reflecting rhythmic attentional inhibition, and in criterion, indicating dynamic motor-related anticipation or preparation.
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25
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Pergola G, Danet L, Pitel AL, Carlesimo GA, Segobin S, Pariente J, Suchan B, Mitchell AS, Barbeau EJ. The Regulatory Role of the Human Mediodorsal Thalamus. Trends Cogn Sci 2018; 22:1011-1025. [PMID: 30236489 PMCID: PMC6198112 DOI: 10.1016/j.tics.2018.08.006] [Citation(s) in RCA: 118] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 07/31/2018] [Accepted: 08/17/2018] [Indexed: 12/17/2022]
Abstract
The function of the human mediodorsal thalamic nucleus (MD) has so far eluded a clear definition in terms of specific cognitive processes and tasks. Although it was at first proposed to play a role in long-term memory, a set of recent studies in animals and humans has revealed a more complex, and broader, role in several cognitive functions. The MD seems to play a multifaceted role in higher cognitive functions together with the prefrontal cortex and other cortical and subcortical brain areas. Specifically, we propose that the MD is involved in the regulation of cortical networks especially when the maintenance and temporal extension of persistent activity patterns in the frontal lobe areas are required.
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Affiliation(s)
- Giulio Pergola
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, University of Bari Aldo Moro, Bari 70124, Italy.
| | - Lola Danet
- Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS 31024, France; CHU Toulouse Purpan, Neurology Department, Toulouse 31059, France
| | - Anne-Lise Pitel
- Normandie University, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000 Caen, France
| | - Giovanni A Carlesimo
- Department of Systems Medicine, Tor Vergata University and S. Lucia Foundation, Rome, Italy
| | - Shailendra Segobin
- Normandie University, UNICAEN, PSL Research University, EPHE, INSERM, U1077, CHU de Caen, Neuropsychologie et Imagerie de la Mémoire Humaine, 14000 Caen, France
| | - Jérémie Pariente
- Toulouse NeuroImaging Center, Université de Toulouse, Inserm, UPS 31024, France; CHU Toulouse Purpan, Neurology Department, Toulouse 31059, France
| | - Boris Suchan
- Clinical Neuropsychology, Ruhr University Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Anna S Mitchell
- Department of Experimental Psychology, University of Oxford, The Tinsley Building, Mansfield Road, Oxford OX1 3SR, UK; Equivalent contribution as last authors.
| | - Emmanuel J Barbeau
- Centre de recherche Cerveau et Cognition, UMR5549, Université de Toulouse - CNRS, Toulouse 31000, France; Equivalent contribution as last authors
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26
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Liebe T, Li M, Colic L, Munk MHJ, Sweeney-Reed CM, Woelfer M, Kretzschmar MA, Steiner J, von Düring F, Behnisch G, Schott BH, Walter M. Ketamine influences the locus coeruleus norepinephrine network, with a dependency on norepinephrine transporter genotype - a placebo controlled fMRI study. NEUROIMAGE-CLINICAL 2018; 20:715-723. [PMID: 30238915 PMCID: PMC6146384 DOI: 10.1016/j.nicl.2018.09.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 08/12/2018] [Accepted: 09/02/2018] [Indexed: 12/14/2022]
Abstract
Background Ketamine is receiving increasing attention as a rapid-onset antidepressant in patients suffering from major depressive disorder (MDD) with treatment resistance or severe suicidal ideation. Ketamine modulates several neurotransmitter systems, including norepinephrine via the norepinephrine transporter (NET), both peripherally and centrally. The locus coeruleus (LC), which has high NET concentration, has been attributed to brain networks involved in depression. Thus we investigated the effects of single-dose of racemic ketamine on the LC using resting state functional MRI. Methods Fifty-nine healthy participants (mean age 25.57 ± 4.72) were examined in a double-blind, randomized, placebo-controlled study with 7 Tesla MRI. We investigated the resting state functional connectivity (rs-fc) of the LC before and one hour after subanesthetic ketamine injection (0.5 mg/kg), as well as associations between its rs-fc and a common polymorphism in the NET gene (rs28386840). Results A significant interaction of drug and time was revealed, and post hoc testing showed decreased rs-fc between LC and the thalamus after ketamine administration compared with baseline levels, including the mediodorsal, ventral anterior, ventral lateral, ventral posterolateral and centromedian nuclei. The rs-fc reduction was more pronounced in NET rs28386840 [AA] homozygous subjects than in [T] carriers. Conclusions We demonstrated acute rs-fc changes after ketamine administration in the central node of the norepinephrine pathway. These findings may contribute to understanding the antidepressant effect of ketamine at the system level, supporting modes of action on networks subserving aberrant arousal regulation in depression. Ketamine decreased connectivity between locus coeruleus and bilateral thalamus in resting state fMRI. This reduction of rs-fc between LC and thalamus was dependent on norepinephrine transporter genotype. The central effects of ketamine involve norepinephrine and attention networks. Antidepressive effects of ketamine may involve LC attention system.
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Affiliation(s)
- Thomas Liebe
- Clinical Affective Neuroimaging Laboratory, Leipziger Str. 44, 39112 Magdeburg, Germany; Leibniz Institute for Neurobiology, Brenneckestraße 6, 39118 Magdeburg, Germany; Clinic for Neuroradiology, University of Magdeburg, Leipziger Str. 44, Magdeburg 39120, Germany; Translational Psychiatry Tübingen, University Hospital Tübingen, Calwerstraße 14, 72076 Tübingen, Germany
| | - Meng Li
- Clinical Affective Neuroimaging Laboratory, Leipziger Str. 44, 39112 Magdeburg, Germany; Department of Neurology, Otto von Guericke University of Magdeburg, Leipziger Str. 44, 39112 Magdeburg, Germany
| | - Lejla Colic
- Clinical Affective Neuroimaging Laboratory, Leipziger Str. 44, 39112 Magdeburg, Germany; Leibniz Institute for Neurobiology, Brenneckestraße 6, 39118 Magdeburg, Germany
| | - Matthias H J Munk
- Department of Psychiatry, University of Tübingen, Calwerstr. 14, 72076 Tübingen, Germany; Department of Systems Neurophysiology, Fachbereich Biologie, Technische Universität Darmstadt, Schnittspahnstraße 10, 64287 Darmstadt, Germany
| | - Catherine M Sweeney-Reed
- Neurocybernetics and Rehabilitation, Department of Neurology, University of Magdeburg, Leipziger Str. 44, Magdeburg 39120, Germany
| | - Marie Woelfer
- Clinical Affective Neuroimaging Laboratory, Leipziger Str. 44, 39112 Magdeburg, Germany; Leibniz Institute for Neurobiology, Brenneckestraße 6, 39118 Magdeburg, Germany; Department of Biomedical Engineering, New Jersey Institute of Technology, 323 Dr Martin Luther King Jr Blvd, Newark, NJ 07102, USA
| | - Moritz A Kretzschmar
- Department of Anesthesiology and Intensive Care Medicine, University of Magdeburg, Leipziger Str. 44, Magdeburg 39120, Germany
| | - Johann Steiner
- Department of Psychiatry, University of Magdeburg, Leipziger Str. 44, Magdeburg 39120, Germany
| | - Felicia von Düring
- Clinical Affective Neuroimaging Laboratory, Leipziger Str. 44, 39112 Magdeburg, Germany; Leibniz Institute for Neurobiology, Brenneckestraße 6, 39118 Magdeburg, Germany
| | - Gusalija Behnisch
- Behavioural Neuroscience, Leibniz Institute for Neurobiology, Brenneckestraße 6, 39118 Magdeburg, Germany
| | - Björn H Schott
- Behavioural Neuroscience, Leibniz Institute for Neurobiology, Brenneckestraße 6, 39118 Magdeburg, Germany; Center for Behavioral Brain Sciences, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany; Department of Psychiatry and Psychotherapy, University Medicine Göttingen, von Siebold-Str. 5, 37075 Göttingen, Germany
| | - Martin Walter
- Clinical Affective Neuroimaging Laboratory, Leipziger Str. 44, 39112 Magdeburg, Germany; Leibniz Institute for Neurobiology, Brenneckestraße 6, 39118 Magdeburg, Germany; Department of Neurology, Otto von Guericke University of Magdeburg, Leipziger Str. 44, 39112 Magdeburg, Germany; Department of Psychiatry, University of Magdeburg, Leipziger Str. 44, Magdeburg 39120, Germany; Center for Behavioral Brain Sciences, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany; Max Planck Institute for Biological Cybernetics Tübingen, Max-Planck-Ring 8-14, 72076 Tübingen, Germany; Translational Psychiatry Tübingen, University Hospital Tübingen, Calwerstraße 14, 72076 Tübingen, Germany.
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Sweeney-Reed CM, Zaehle T, Voges J, Schmitt FC, Buentjen L, Borchardt V, Walter M, Hinrichs H, Heinze HJ, Rugg MD, Knight RT. Anterior Thalamic High Frequency Band Activity Is Coupled with Theta Oscillations at Rest. Front Hum Neurosci 2017; 11:358. [PMID: 28775684 PMCID: PMC5518534 DOI: 10.3389/fnhum.2017.00358] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 06/22/2017] [Indexed: 12/15/2022] Open
Abstract
Cross-frequency coupling (CFC) between slow and fast brain rhythms, in the form of phase–amplitude coupling (PAC), is proposed to enable the coordination of neural oscillatory activity required for cognitive processing. PAC has been identified in the neocortex and mesial temporal regions, varying according to the cognitive task being performed and also at rest. PAC has also been observed in the anterior thalamic nucleus (ATN) during memory processing. The thalamus is active during the resting state and has been proposed to be involved in switching between task-free cognitive states such as rest, in which attention is internally-focused, and externally-focused cognitive states, in which an individual engages with environmental stimuli. It is unknown whether PAC is an ongoing phenomenon during the resting state in the ATN, which is modulated during different cognitive states, or whether it only arises during the performance of specific tasks. We analyzed electrophysiological recordings of ATN activity during rest from seven patients who received thalamic electrodes implanted for treatment of pharmacoresistant focal epilepsy. PAC was identified between theta (4–6 Hz) phase and high frequency band (80–150 Hz) amplitude during rest in all seven patients, which diminished during engagement in tasks involving an external focus of attention. The findings are consistent with the proposal that theta–gamma coupling in the ATN is an ongoing phenomenon, which is modulated by task performance.
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Affiliation(s)
- Catherine M Sweeney-Reed
- Departments of Neurology and Stereotactic Neurosurgery, Otto von Guericke UniversityMagdeburg, Germany
| | - Tino Zaehle
- Departments of Neurology and Stereotactic Neurosurgery, Otto von Guericke UniversityMagdeburg, Germany
| | - Jürgen Voges
- Departments of Neurology and Stereotactic Neurosurgery, Otto von Guericke UniversityMagdeburg, Germany.,Department of Behavioral Neurology, Leibniz Institute for NeurobiologyMagdeburg, Germany
| | - Friedhelm C Schmitt
- Departments of Neurology and Stereotactic Neurosurgery, Otto von Guericke UniversityMagdeburg, Germany
| | - Lars Buentjen
- Departments of Neurology and Stereotactic Neurosurgery, Otto von Guericke UniversityMagdeburg, Germany
| | - Viola Borchardt
- Department of Behavioral Neurology, Leibniz Institute for NeurobiologyMagdeburg, Germany
| | - Martin Walter
- Department of Behavioral Neurology, Leibniz Institute for NeurobiologyMagdeburg, Germany.,Department of Psychiatry, Eberhard Karls UniversityTübingen, Germany
| | - Hermann Hinrichs
- Departments of Neurology and Stereotactic Neurosurgery, Otto von Guericke UniversityMagdeburg, Germany.,Department of Behavioral Neurology, Leibniz Institute for NeurobiologyMagdeburg, Germany.,German Centre for Neurodegenerative Diseases (DZNE), Otto von Guericke UniversityMagdeburg, Germany
| | - Hans-Jochen Heinze
- Departments of Neurology and Stereotactic Neurosurgery, Otto von Guericke UniversityMagdeburg, Germany.,Department of Behavioral Neurology, Leibniz Institute for NeurobiologyMagdeburg, Germany.,German Centre for Neurodegenerative Diseases (DZNE), Otto von Guericke UniversityMagdeburg, Germany
| | - Michael D Rugg
- Center for Vital Longevity and School of Behavioral and Brain Sciences, University of TexasDallas, TX, United States
| | - Robert T Knight
- Helen Wills Neuroscience Institute and Department of Psychology, University of California, BerkeleyBerkeley, CA, United States
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Cheung MC, Chan AS, Liu Y, Law D, Wong CWY. Music training is associated with cortical synchronization reflected in EEG coherence during verbal memory encoding. PLoS One 2017; 12:e0174906. [PMID: 28358852 PMCID: PMC5373634 DOI: 10.1371/journal.pone.0174906] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 03/17/2017] [Indexed: 11/19/2022] Open
Abstract
Music training can improve cognitive functions. Previous studies have shown that children and adults with music training demonstrate better verbal learning and memory performance than those without such training. Although prior studies have shown an association between music training and changes in the structural and functional organization of the brain, there is no concrete evidence of the underlying neural correlates of the verbal memory encoding phase involved in such enhanced memory performance. Therefore, we carried out an electroencephalography (EEG) study to investigate how music training was associated with brain activity during the verbal memory encoding phase. Sixty participants were recruited, 30 of whom had received music training for at least one year (the MT group) and 30 of whom had never received music training (the NMT group). The participants in the two groups were matched for age, education, gender distribution, and cognitive capability. Their verbal and visual memory functions were assessed using standardized neuropsychological tests and EEG was used to record their brain activity during the verbal memory encoding phase. Consistent with previous studies, the MT group demonstrated better verbal memory than the NMT group during both the learning and the delayed recall trials in the paper-and-pencil tests. The MT group also exhibited greater learning capacity during the learning trials. Compared with the NMT group, the MT group showed an increase in long-range left and right intrahemispheric EEG coherence in the theta frequency band during the verbal memory encoding phase. In addition, their event-related left intrahemispheric theta coherence was positively associated with subsequent verbal memory performance as measured by discrimination scores. These results suggest that music training may modulate the cortical synchronization of the neural networks involved in verbal memory formation.
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Affiliation(s)
- Mei-chun Cheung
- Department of Social Work, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
- * E-mail:
| | - Agnes S. Chan
- Department of Psychology, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
- Chanwuyi Research Center for Neuropsychological Well-being, The Chinese University of Hong Kong, Shatin, Hong Kong SAR
| | - Ying Liu
- School of Public Administration, Guangzhou University, Guangzhou, P.R. China
| | - Derry Law
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR
| | - Christina W. Y. Wong
- Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR
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Thalamic interictal epileptiform discharges in deep brain stimulated epilepsy patients. J Neurol 2016; 263:2120-6. [DOI: 10.1007/s00415-016-8246-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 07/24/2016] [Accepted: 07/25/2016] [Indexed: 12/26/2022]
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Clinical, neuropsychological, and pre-stimulus dorsomedial thalamic nucleus electrophysiological data in deep brain stimulation patients. Data Brief 2016; 8:557-61. [PMID: 27508216 PMCID: PMC4961763 DOI: 10.1016/j.dib.2016.06.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/01/2016] [Accepted: 06/09/2016] [Indexed: 12/03/2022] Open
Abstract
The data presented here comprise clinical, neuropsychological, and intrathalamic electrophysiological data from 7 patients with pharmacoresistant focal epilepsy and are related to the article “Pre-stimulus thalamic theta power predicts human memory formation” C.M. Sweeney-Reed, T. Zaehle, J. Voges, F.C. Schmitt, L. Buentjen, K. Kopitzki, et al. (2016) [1]. The patients participated in a memory paradigm after receiving electrodes implanted in the DMTN due to the surgical approach taken in electrode insertion for deep brain stimulation of the anterior thalamic nucleus. Epilepsy duration and pre-operative neuropsychological tests provide an indication of the profile of patients receiving intrathalamic electrode implantation and the memory capabilities in such a patient group. The electrophysiological data were recorded from the right DMTN preceding stimulus presentation during intentional memory encoding. The patients viewed a series of photographic scenes, which they judged as indoors or outdoors. The 900 ms epochs prior to stimulus presentation were labeled as preceding successful or unsuccessful subsequent memory formation according to a subsequent memory test for the items. The difference between theta power preceding successful versus unsuccessful subsequent memory formation is shown against time for each patient individually.
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