EEG changes index camouflaged object identification: a pilot study
1998
Abstract EEG correlates of camouflaged object identification were investigated in this pilot study by recording 8-s epochs of scalp potentials under two conditions. In the experimental condition subjects, three female and two male right-handers, aged 23–47, viewed images depicting camouflaged target objects, and signalled identification by blinking. In the control condition subjects viewed a neutral screen and blinked at will. Theta band activity was analysed for linear associations using cross-correlation. Correlation increased over a 1-s interval preceding. Associations included, progressively, occipital and left temporal regions, bilateral frontal and temporal areas, and bilateral occipital, temporal, central, frontal and prefrontal regions. A descriptive model is presented, according to which a unitary percept is the emergent result of a process of self-organisation of a network of interregional signalling.
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