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| Brain: Septal nuclei | ||
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| NeuroNames | hier-241 | |
The septal nuclei are structures in the middle anteroventral cerebrum that are composed of medium-size neurons grouped into medial, lateral, and posterior groups. The septal nuclei receive reciprocal connections from the hippocampus, amygdala, hypothalamus, midbrain, habenula, cingulate gyrus, and thalamus.
The septal nuclei play an important role in reward and reinforcement. In the 1950s, Olds & Milner showed that rats with electrodes implanted in this area will self-stimulate repeatedly (i.e. press a bar to receive electrical current that will stimulate the neurons) in order to experience a pleasurable feeling[1].
References
- ^ Positive reinforcement produced by electrical stimulation of septal area and other regions of rat brain.J Comp Physiol Psychol. 1954 Dec;47(6):419-27.
External links
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References:
1. OLDS, J., MILNER, P. - Positive reinforcement produced by electrical stimulation of septal area and other regions of rat brain. J Comp Physiol Psychol, 1954, Dec;47(6):419-27.
Wikipedia content modification information:
- This page was last modified on 31 August 2008, at 00:35.
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