Complementary Process to Response Bias in the Centromedian Nucleus of the Thalamus

by: Takafumi Minamimoto, Yukiko Hori, Minoru Kimura

Science, Vol. 308, No. 5729. (17 June 2005), pp. 1798-1801.

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expectation, monkey, reward, thalamus

Abstract

Activity in several areas of the human brain and the monkey brain increases when a subject anticipates events associated with a reward, implicating a role for bias of decision and action. However, in real life, events do not always appear as expected, and we must choose an undesirable action. More than half of the neurons in the monkey centromedian (CM) thalamus were selectively activated when a small-reward action was required but a large-reward option was anticipated. Electrical stimulation of the CM after a large-reward action request substituted a brisk performance with a sluggish performance. These results suggest involvement of the CM in a mechanism complementary to decision and action bias.

@article{citeulike:233187, abstract = {Activity in several areas of the human brain and the monkey brain increases when a subject anticipates events associated with a reward, implicating a role for bias of decision and action. However, in real life, events do not always appear as expected, and we must choose an undesirable action. More than half of the neurons in the monkey centromedian (CM) thalamus were selectively activated when a small-reward action was required but a large-reward option was anticipated. Electrical stimulation of the CM after a large-reward action request substituted a brisk performance with a sluggish performance. These results suggest involvement of the CM in a mechanism complementary to decision and action bias.}, author = {Minamimoto, Takafumi and Hori, Yukiko and Kimura, Minoru }, citeulike-article-id = {233187}, doi = {10.1126/science.1109154}, journal = {Science}, keywords = {expectation, monkey, reward, thalamus}, month = {June}, number = {5729}, pages = {1798--1801}, posted-at = {2005-06-21 10:34:41}, priority = {2}, title = {Complementary Process to Response Bias in the Centromedian Nucleus of the Thalamus}, url = {http://dx.doi.org/10.1126/science.1109154}, volume = {308}, year = {2005} }

RIS record

TY - JOUR ID - citeulike:233187 L3 - citeulike-article-id:233187 TI - Complementary Process to Response Bias in the Centromedian Nucleus of the Thalamus JF - Science VL - 308 IS - 5729 SP - 1798 EP - 1801 N2 - Activity in several areas of the human brain and the monkey brain increases when a subject anticipates events associated with a reward, implicating a role for bias of decision and action. However, in real life, events do not always appear as expected, and we must choose an undesirable action. More than half of the neurons in the monkey centromedian (CM) thalamus were selectively activated when a small-reward action was required but a large-reward option was anticipated. Electrical stimulation of the CM after a large-reward action request substituted a brisk performance with a sluggish performance. These results suggest involvement of the CM in a mechanism complementary to decision and action bias. KW - expectation KW - monkey KW - reward KW - thalamus AU - Minamimoto, Takafumi AU - Hori, Yukiko AU - Kimura, Minoru PY - 2005/06/17/ UR - http://dx.doi.org/10.1126/science.1109154 ER -

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