LEVENDE BILLEDER: OM DANNELSE OG OMDANNELSE AF FORESTILLINGSBILLEDER I HJERNEN

Abstract

In experimental psychology the notion of a fundamental functional similarity between visual imagery and visual perception dates back to Perky ( 1910); it has gained steadily increasing popularity in modem cognitive psychology and is supported by evidence from experimental studies on visual perception of apparent motion and studies on visual transformation of mental images. Brain activation studies based on new imaging techniques like PET and fMRI has provided further evidence by locating brain mechanisms, which appears active in both visual perception and transformation of visual images with respect to size and orientation.