Pleasure center is the general term used for the brain regions involved in pleasure. Discoveries made in the 1950s initially suggested that rodents could not stop electrically stimulating parts of their brain, mainly the nucleus accumbens, which was theorized to produce great pleasure. Further investigations revealed that the septum pellucidium and the hypothalamus can also be targets for self-stimulation. Yet, more recent research has shown that such ‘pleasure’ electrodes do not, in fact, lead to pleasure but only a form of ‘wanting’ or motivation to obtain the stimulation. Instead, the weight of the evidence suggests that the pleasure center of the human brain is not a single center but rather a distributed system of brain regions of which important nodes include subcortical regions (such as the nucleus accumbens and ventral pallidum) and cortical regions (orbitofrontal cortex and anterior cingulate cortex).
Read more about Pleasure Center: Rodent Experiments, Actions and Rewards, Research
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