Perceptually based implicit learning in severe closed-head injury patients.

作者：Heather M. Nissley, Maureen Schmitter‐Edgecombe · 发表于：Neuropsychology · 年份：2002 · DOI：10.1037//0894-4105.16.1.111 · 被引用次数：26 · 研究领域：Visual perception and processing mechanisms、Action Observation and Synchronization、Motor Control and Adaptation

This study suggests that perceptually based implicit learning may either be preserved following a severe closed-head injury (CHI) or recover within the 1st year. Nineteen severe CHI patients and 19 controls searched visual matrices and indicated the quadrant location of a target. Participants were exposed to the following covariation pattern: AAAABAAA. For Covariation A blocks, the matrices systematically co-occurred with a unique location of the target. This relationship was altered for the B block. Despite CHI participants' overall slower response times (RTs), both groups demonstrated the expected decline in RTs across the first 4 Covariation A blocks followed by an increase when the covariation changed. Both groups also exhibited retention of their learning after a 20-min delay. Explicit knowledge tests indicated that participants lacked awareness for the covariation.