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The present work presents three experiments investigating cortical activities in the gamma band in humans. On the basis of theoretical models and animal experiments, synchronized oscillatory neuronal activity is discussed as the key mechanism by which the brain binds information processesed in different cortical areas to form a percept. Using an identical stimulation design - the same as used in animal...
Recognizing objects from the past is a vitally important ability for everyday live. The studies of brain mechanisms responsible for visual recognition memory suggest that the modulation of single unit activity in the inferotemporal and perirhinal cortices could be an important part of the neuronal substrate of recognition memory. In this review, I will describe Stimulus Specific Adaptation (SSA) -...
Compositions of visual scenes are related here to neural signals in visual cortex and to cortical circuit models to understand neural mechanisms of perceptual feature grouping. Starting from the hypothesis that synchronization and decoupling of cortical y-activities (35-90 Hz) define the relations among visual objects, we concentrate on synchronization related to (1) static retinal stimulation during...
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