TITLE

Changes in the Spatial Synchronization of Electrical Potentials in the Neocortex at Different Time Periods between Stimuli on Acquisition of a Set to an Emotionally Negative Facial Expression

AUTHOR(S)
Kostandov, E.; Cheremushkin, E.
PUB. DATE
March 2014
SOURCE
Neuroscience & Behavioral Physiology;Mar2014, Vol. 44 Issue 3, p277
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Studies in healthy humans ( n = 35) were performed using a model of a set to an emotionally negative facial expression with an 8-sec interval between the target (facial image) and trigger signals. Coherence functions for alpha and theta potentials at different parts of the cerebral cortex of the left and right hemispheres were studied at different time intervals during the pre- and post-stimulus periods. The following dynamic was seen: the source of modulation of attention consisted of the internal concept of time intervals between significant stimuli formed in the prefrontal cortex as a result of learning. Analysis of changes in the spatial synchronization of theta potentials at different stages of the set to an 'angry' face provided grounds for believing that the corticohippocampal system does not have any direct link with assessment of time intervals, but is associated with the function of emotional memory.
ACCESSION #
94741418

 

Related Articles

  • Dynamics of Trimming the Content of Face Representations for Categorization in the Brain. van Rijsbergen, Nicola J.; Schyns, Philippe G. // PLoS Computational Biology;Nov2009, Vol. 5 Issue 11, p1 

    To understand visual cognition, it is imperative to determine when, how and with what information the human brain categorizes the visual input. Visual categorization consistently involves at least an early and a late stage: the occipito-temporal N170 event related potential related to stimulus...

  • EVALUACIÓN DE LA MEMORIA DECLARATIVA ASOCIADA CON CONTENIDO EMOCIONAL EN PACIENTES LOBECTOMIZADOS. De Oliveira, Silvia Botelho; Prada, Lina María Acevedo; Cotes, Carlos Arturo Conde; Franky, Jaime Fandiño; Tomaz, Carlos Alberto Bezerra // Revista Latinoamericana de Psicología;2008, Vol. 40 Issue 2, p229 

    Several studies have demonstrated that long-term declarative memory is enhanced by emotional arousal contents. Additionally, the role of the temporal lobe in memory associated to emotional stimuli has been evaluated through the audio-visual Emotional Memory Test, where emotional content is...

  • Complementary Roles of Hippocampus and Medial Entorhinal Cortex in Episodic Memory. Lipton, P. A.; Eichenbaum, H. // Neural Plasticity;2008, Vol. 2008, p1 

    Spatial mapping and navigation are figured prominently in the extant literature that describes hippocampal function. The medial entorhinal cortex is likewise attracting increasing interest, insofar as evidence accumulates that this area also contributes to spatial information processing. Here,...

  • Theta-Burst Stimulation-Induced Plasticity over Primary Somatosensory Cortex Changes Somatosensory Temporal Discrimination in Healthy Humans. Conte, Antonella; Rocchi, Lorenzo; Nardella, Andrea; Dispenza, Sabrina; Scontrini, Alessandra; Khan, Nashaba; Berardelli, Alfredo // PLoS ONE;Mar2012, Vol. 7 Issue 3, p1 

    Background: The somatosensory temporal discrimination threshold (STDT) measures the ability to perceive two stimuli as being sequential. Precisely how the single cerebral structures contribute in controlling the STDT is partially known and no information is available about whether STDT can be...

  • Long-term modification of cortical synapses improves sensory perception. Froemke, Robert C; Carcea, Ioana; Barker, Alison J; Yuan, Kexin; Seybold, Bryan A; Martins, Ana Raquel O; Zaika, Natalya; Bernstein, Hannah; Wachs, Megan; Levis, Philip A; Polley, Daniel B; Merzenich, Michael M; Schreiner, Christoph E // Nature Neuroscience;Jan2013, Vol. 16 Issue 1, p79 

    Synapses and receptive fields of the cerebral cortex are plastic. However, changes to specific inputs must be coordinated within neural networks to ensure that excitability and feature selectivity are appropriately configured for perception of the sensory environment. We induced long-lasting...

  • Attentional Performance, Age and Scholastic Achievement in Healthy Children. Trautmann, Mireille; Zepf, Florian Daniel // PLoS ONE;Mar2012, Vol. 7 Issue 3, p1 

    Background: Attentional processes in children play a critical role in daily school demands and accomplishments. Studies on the association of attentional processes with school achievement and age in healthy school children are scarce. The aim of the present study was to identify correlations...

  • SMALL BRAINS, NO PAIN. Heavey, Bill // Field & Stream;May2003, Vol. 108 Issue 1, p22 

    A researcher of the University of Wyoming in Laramie has found that fishes are incapable of feeling pain. Examining data collected from 15 years' worth of studies on animals and their responses to stimuli, James D. Rose, a professor of zoology and physiology, says fish brains lack the specific...

  • Validation of the Amsterdam Dynamic Facial Expression Set – Bath Intensity Variations (ADFES-BIV): A Set of Videos Expressing Low, Intermediate, and High Intensity Emotions. Wingenbach, Tanja S. H.; Ashwin, Chris; Brosnan, Mark // PLoS ONE;1/19/2016, Vol. 11 Issue 1, p1 

    Most of the existing sets of facial expressions of emotion contain static photographs. While increasing demand for stimuli with enhanced ecological validity in facial emotion recognition research has led to the development of video stimuli, these typically involve full-blown (apex) expressions....

  • Effects of Aversive Stimuli on Prospective Memory. An Event-Related fMRI Study. Rea, Massimiliano; Kullmann, Stephanie; Veit, Ralf; Casile, Antonino; Braun, Christoph; Belardinelli, Marta Olivetti; Birbaumer, Niels; Caria, Andrea // PLoS ONE;2011, Vol. 6 Issue 10, p1 

    Prospective memory (PM) describes the ability to execute a previously planned action at the appropriate point in time. Although behavioral studies clearly showed that prospective memory performance is affected by the emotional significance attributed to the intended action, no study so far...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics