Neural priming in human frontal cortex: Multiple forms of learning reduce demands on the prefrontal executive system
Authors: Race, E.A., Shanker, S. and Wagner, A.D.
Journal: Journal of Cognitive Neuroscience
Volume: 21
Issue: 9
Pages: 1766-1781
eISSN: 1530-8898
ISSN: 0898-929X
DOI: 10.1162/jocn.2009.21132
Abstract:Past experience is hypothesized to reduce computational demands in PFC by providing bottom-up predictive information that informs subsequent stimulus-action mapping. The present fMRI study measured cortical activity reductions ("neural priming"/"repetition suppression") during repeated stimulus classification to investigate the mechanisms through which learning from the past decreases demands on the prefrontal executive system. Manipulation of learning at three levels of representation - stimulus, decision, and response - revealed dissociable neural priming effects in distinct frontotemporal regions, supporting a multiprocess model of neural priming. Critically, three distinct patterns of neural priming were identified in lateral frontal cortex, indicating that frontal computational demands are reduced by three forms of learning: (a) cortical tuning of stimulus-specific representations, (b) retrieval of learned stimulus-decision mappings, and (c) retrieval of learned stimulus-response mappings. The topographic distribution of these neural priming effects suggests a rostrocaudal organization of executive function in lateral frontal cortex. © 2008 Massachusetts Institute of Technology.
https://eprints.bournemouth.ac.uk/29528/
Source: Scopus
Neural priming in human frontal cortex: multiple forms of learning reduce demands on the prefrontal executive system.
Authors: Race, E.A., Shanker, S. and Wagner, A.D.
Journal: J Cogn Neurosci
Volume: 21
Issue: 9
Pages: 1766-1781
ISSN: 0898-929X
DOI: 10.1162/jocn.2009.21132
Abstract:Past experience is hypothesized to reduce computational demands in PFC by providing bottom-up predictive information that informs subsequent stimulus-action mapping. The present fMRI study measured cortical activity reductions ("neural priming"/"repetition suppression") during repeated stimulus classification to investigate the mechanisms through which learning from the past decreases demands on the prefrontal executive system. Manipulation of learning at three levels of representation-stimulus, decision, and response-revealed dissociable neural priming effects in distinct frontotemporal regions, supporting a multiprocess model of neural priming. Critically, three distinct patterns of neural priming were identified in lateral frontal cortex, indicating that frontal computational demands are reduced by three forms of learning: (a) cortical tuning of stimulus-specific representations, (b) retrieval of learned stimulus-decision mappings, and (c) retrieval of learned stimulus-response mappings. The topographic distribution of these neural priming effects suggests a rostrocaudal organization of executive function in lateral frontal cortex.
https://eprints.bournemouth.ac.uk/29528/
Source: PubMed
Neural Priming in Human Prefrontal Cortex: Multiple Forms of Learning Reduce Demands on the Prefrontal Executive System.
Authors: Race, E.A., Shanker, S. and Wagner, A.D.
Journal: J Cogn. Neuroscience
Volume: 21:9
Pages: 1766-1781
https://eprints.bournemouth.ac.uk/29528/
http://cognet.mit.edu/node/28447
Source: Manual
Neural priming in human frontal cortex: multiple forms of learning reduce demands on the prefrontal executive system.
Authors: Race, E.A., Shanker, S. and Wagner, A.D.
Journal: Journal of cognitive neuroscience
Volume: 21
Issue: 9
Pages: 1766-1781
eISSN: 1530-8898
ISSN: 0898-929X
DOI: 10.1162/jocn.2009.21132
Abstract:Past experience is hypothesized to reduce computational demands in PFC by providing bottom-up predictive information that informs subsequent stimulus-action mapping. The present fMRI study measured cortical activity reductions ("neural priming"/"repetition suppression") during repeated stimulus classification to investigate the mechanisms through which learning from the past decreases demands on the prefrontal executive system. Manipulation of learning at three levels of representation-stimulus, decision, and response-revealed dissociable neural priming effects in distinct frontotemporal regions, supporting a multiprocess model of neural priming. Critically, three distinct patterns of neural priming were identified in lateral frontal cortex, indicating that frontal computational demands are reduced by three forms of learning: (a) cortical tuning of stimulus-specific representations, (b) retrieval of learned stimulus-decision mappings, and (c) retrieval of learned stimulus-response mappings. The topographic distribution of these neural priming effects suggests a rostrocaudal organization of executive function in lateral frontal cortex.
https://eprints.bournemouth.ac.uk/29528/
Source: Europe PubMed Central
Neural Priming in Human Prefrontal Cortex: Multiple Forms of Learning Reduce Demands on the Prefrontal Executive System.
Authors: Race, E.A., Shanker, S. and Wagner, A.D.
Journal: Journal of Cognitive Neuroscience
Volume: 21
Issue: 9
Pages: 1766-1781
ISSN: 0898-929X
Abstract:Past experience is hypothesized to reduce computational demands in PFC by providing bottom-up predictive information that informs subsequent stimulus-action mapping. The present fMRI study measured cortical activity reductions ("neural priming"/"repetition suppression") during repeated stimulus classification to investigate the mechanisms through which learning from the past decreases demands on the prefrontal executive system. Manipulation of learning at three levels of representation-stimulus, decision, and response-revealed dissociable neural priming effects in distinct frontotemporal regions, supporting a multiprocess model of neural priming. Critically, three distinct patterns of neural priming were identified in lateral frontal cortex, indicating that frontal computational demands are reduced by three forms of learning: (a) cortical tuning of stimulus-specific representations, (b) retrieval of learned stimulus-decision mappings, and (c) retrieval of learned stimulus-response mappings. The topographic distribution of these neural priming effects suggests a rostrocaudal organization of executive function in lateral frontal cortex.
https://eprints.bournemouth.ac.uk/29528/
http://cognet.mit.edu/node/28447
Source: BURO EPrints