Conditioned up and down modulations of short latency gamma band oscillations in visual cortex during fear learning in humans.

ABSTRACT: Over the course of evolution, the human brain has been shaped to prioritize cues that signal potential danger. Thereby, the brain does not only favor species-specific prepared stimulus sets such as snakes or spiders but can learn associations between new cues and aversive outcomes. One important mechanism to achieve this is associated with learning induced plasticity changes in sensory cortex that optimizes the representation of motivationally relevant sensory stimuli. Animal studies have shown that the modulation of gamma band oscillations predicts plasticity changes in sensory cortices by shifting neurons' responses to fear relevant features as acquired by Pavlovian fear conditioning. Here, we report conditioned gamma band modulations in humans during fear conditioning of orthogonally or

SUBMITTER: Santos-Mayo A 

PROVIDER: S-EPMC8850570 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature