It did not matter how much money was gained, since small gains stimulated the volunteers' striatum as much as large gains.
They also found that overall striatum activity increased with the total amount of money in stock.
The authors said that the results show that "risky tactics and pleasure of monetary gain are correlated with activation of the striatum" and that this finding demonstrates "the concept of the striatum as a major reward-related brain structure".
The study is published in an upcoming issue of Cortex.
Source-ANI
RAS