PMID- 9803012 OWN - NLM STAT- MEDLINE DCOM- 19981130 LR - 20231221 IS - 0065-1400 (Print) IS - 0065-1400 (Linking) VI - 58 IP - 3 DP - 1998 TI - Activation of reward-relevant neurons in the caudate-putamen influences the development of medial prefrontal cortex self-stimulation: a moveable electrode mapping study. PG - 189-98 LID - 1273 [pii] LID - 10.55782/ane-1998-1273 [doi] AB - Two hundred fifty five medial prefrontal cortical (MPFC) and 187 caudate-putamen (CPu) sites were evaluated for intracranial self-stimulation in 67 animals using moveable electrodes and collecting trade-off functions between current and frequency. Eleven percent of the examined areas, located predominantly in the ventromedial aspects of MPFC and CPu, showed reliable self-stimulation and the average charge of 1.12 and 1.11 microC respectively, values that are in line with those reported for the Medial forebrain bundle. The distribution of charge, however, was greater than reported for the latter region, and ranged between 0.68 to 1.63 microC across sites. Some subjects were implanted with two electrodes, one aimed at the MPFC, and the other at the CPu, ventral tegmental area, or lateral hypothalamus. Only animals with CPu placements showed transference of self-stimulation to the MPFC, suggesting that these two regions might form part of the same reward substrate, a view that has anatomical, electrophysiological and recently behavioral support. FAU - Bielajew, C AU - Bielajew C AD - University of Ottawa, School of Psychology, Ontario, Canada. FAU - Trzcinska, M AU - Trzcinska M LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Poland TA - Acta Neurobiol Exp (Wars) JT - Acta neurobiologiae experimentalis JID - 1246675 SB - IM MH - Animals MH - Caudate Nucleus/*cytology/*physiology MH - Male MH - Neurons/*physiology MH - Prefrontal Cortex/cytology/*physiology MH - Putamen/*cytology/*physiology MH - Rats MH - *Reward MH - Self Stimulation/*physiology EDAT- 1998/11/06 00:00 MHDA- 1998/11/06 00:01 CRDT- 1998/11/06 00:00 PHST- 1998/11/06 00:00 [pubmed] PHST- 1998/11/06 00:01 [medline] PHST- 1998/11/06 00:00 [entrez] AID - 1273 [pii] AID - 10.55782/ane-1998-1273 [doi] PST - ppublish SO - Acta Neurobiol Exp (Wars). 1998;58(3):189-98. doi: 10.55782/ane-1998-1273.