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Phenotypic and genetic correlations between evoked EEG/ERP measures during the response anticipation period of a delayed response task
Author(s) -
Smit Dirk J. A.,
Posthuma Danielle,
Boomsma Dorret I.,
De Geus Eco J. C.
Publication year - 2009
Publication title -
psychophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.661
H-Index - 156
eISSN - 1469-8986
pISSN - 0048-5772
DOI - 10.1111/j.1469-8986.2008.00777.x
Subject(s) - anticipation (artificial intelligence) , psychology , heritability , electroencephalography , alpha (finance) , synchronization (alternating current) , neuroscience , electrophysiology , task (project management) , response inhibition , audiology , developmental psychology , cognition , biology , mathematics , genetics , medicine , topology (electrical circuits) , construct validity , management , combinatorics , artificial intelligence , computer science , economics , psychometrics
We investigated the relationship between three electrophysiological indices of response anticipation in a spatial delayed response task with a low and high memory load manipulation: a slow cortical potential (SCP), theta desynchronization, and upper alpha synchronization. Individual differences in these three measures were examined in 531 adult twins and siblings. Heritability of the SCP at occipital‐parietal leads varied from 30% to 43%. Heritability of upper alpha synchronization (35% to 65%) and theta desynchronization (31% to 50%) was significant at all leads. Theta desynchronization and upper alpha synchronization were significantly correlated ( r ∼43%), but SCP was not correlated with either. The effect of working memory load on all three measures was not heritable. Response anticipation reliably evokes an SCP, upper alpha synchronization and theta desynchronization, but variation in these measures reflects different (genetic) sources.