Response processes in information-integration category learning

TitleResponse processes in information-integration category learning
Publication TypeJournal Article
Year of Publication2008
AuthorsSpiering, B. J., & F Ashby G.
JournalNeurobiology of Learning and Memory
Date Published2008 Sep
KeywordsAssociation Learning, Attention, Basal Ganglia, Color Perception, Discrimination Learning, Humans, Mental Recall, Orientation, Pattern Recognition, Visual, Problem Solving, Psychomotor Performance, Size Perception

Much recent evidence suggests that human category learning is mediated by multiple systems. Evidence suggests that at least one of these depends on procedural learning within the basal ganglia. Information-integration categorization tasks are thought to load heavily on this procedural-learning system. The results of several previous studies were interpreted to suggest that response positions are learned in information-integration tasks. This hypothesis was tested in two experiments. Experiment 1 showed that information-integration category learning was slowed but not disrupted when the spatial location of the responses varied randomly across trials. Experiment 2 showed that information-integration learning was impaired if category membership was signaled by responding to a Yes/No question and the category label had no consistent spatial location. These results suggest that information-integration category learning does not require consistent response locations. In these experiments, a consistent association between a category and a response feature was sufficient. The implication of these results for the neurobiology of information-integration category learning is discussed.

Alternate JournalNeurobiol Learn Mem
PubMed ID18550397
PubMed Central IDPMC2562679
Grant ListR01 MH063760 / MH / NIMH NIH HHS / United States
R01 MH063760-06 / MH / NIMH NIH HHS / United States