Neural Priming in Human Frontal Cortex: Multiple Forms of Learning Reduce Demands on the Prefrontal Executive System. Export

@article{citeulike:4147933, abstract = {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.}, author = {Race, Elizabeth A A. and Shanker, Shanti and Wagner, Anthony D D.}, citeulike-article-id = {4147933}, citeulike-linkout-0 = {http://dx.doi.org/10.1162/jocn.2009.21132}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/18823245}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=18823245}, comment = {Includes a separate analysis of response priming, associate priming and stimulus priming. ---=note-separator=--- Note that this dissociation is discussed about 10 years earlier in Grafton, Hazeltine \& Ivry (1998) and perhaps even McKay (1982) However, this paper does serve to illustrate the coherence of response priming with other forms of priming (including at a neural level)}, day = {29}, doi = {10.1162/jocn.2009.21132}, issn = {0898-929X}, journal = {Journal of cognitive neuroscience}, keywords = {memory, motor, motor-skill-review, priming, stimulus}, month = {September}, posted-at = {2009-03-07 22:42:27}, priority = {4}, title = {Neural Priming in Human Frontal Cortex: Multiple Forms of Learning Reduce Demands on the Prefrontal Executive System.}, url = {http://dx.doi.org/10.1162/jocn.2009.21132}, year = {2008} }

TY - JOUR ID - citeulike:4147933 L3 - citeulike-article-id:4147933 N2 - 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. JF - Journal of cognitive neuroscience SN - 0898-929X TI - Neural Priming in Human Frontal Cortex: Multiple Forms of Learning Reduce Demands on the Prefrontal Executive System. KW - memory KW - motor KW - motor-skill-review KW - priming KW - stimulus N1 - Includes a separate analysis of response priming, associate priming and stimulus priming. N1 - Note that this dissociation is discussed about 10 years earlier in Grafton, Hazeltine & Ivry (1998) and perhaps even McKay (1982) However, this paper does serve to illustrate the coherence of response priming with other forms of priming (including at a neural level) AU - Race, Elizabeth A AU - Shanker, Shanti AU - Wagner, Anthony D PY - 2008/09/29/ UR - http://dx.doi.org/10.1162/jocn.2009.21132 ER -