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Decision-Making Enabled By Neurons: Value Assigned To Available Choices.

to be tested.'

In the experiment conducted by Padoa-Schioppa, macaque monkeys were observed making a choice between two types of juice offered in different amounts. Dung the course of some trials, the monkeys chose between one drop of grape juice and one drop of apple juice. In other trials, the monkey chose between one drop of grape juice and two drops of apple juice, etc Padoa-Schioppa observed a compromise between the type of juice and the quantity of juice, portraying that the value attached by the monkey to one drop of grape juice is approximately equal to the value the monkey assigns to three drops of apple juice.

These choices made by the monkeys were linked to the neuron activity. The activity of one particular neuron could be low when the monkey chose one drop of grape juice or when it chose three drops of apple juice. The activity of the same neuron might have been moderately high when the monkey chose two drops of grape juice or when it chose six drops of apple juice. And the activity of the same neuron would have been high when the monkey chose three drops of grape juice or when it chose 10 drops of apple juice.

This means that the activity of such OFC neurons is important that actually assigns the value chosen by the monkey, which is exclusive of any of the traits of the juice, either taste or quantity. The choice pattern exhibited by the monkeys, could be based on the activity of these neurons.

Source: Eureka Alert
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