Poster A106, Saturday, March 24, 1:30–3:30 pm, Exhibit Hall C
Dissecting the neural correlates of ambidextrous decision making
Ting-Ting Chang1, Carol Yeh-Yun Lin1, Nai-Shing Yen1, Danchi Tan1, Ying-Ching Chen1; 1National Chengchi University
Ambidextrous managers are good at switching between exploration and exploitation to achieve a balance for maximizing performance. Previous studies have shown that the two managing styles involve distinct decision making behavior. However, very limited is known about how the two styles differ in their brain responses, and how personality affects ambidexterity. Here we tackle this issue by conducting an fMRI study on thirty-nine adults while they played ‘four-armed bandit’ task. General linear model was conducted to model brain activation associated with exploitation and explorations, with the former was defined by participants choosing the bandit with the highest score of the four, whereas the latter referred to the rest of the options. We found that relative to exploration, exploitation behavior engaged strong activations in the striatum, inferior frontal gyrus and superior frontal gyrus in the prefrontal cortex as well as left middle temporal lobe in the temporal cortex. Exploration, in contrast, activated widespread fronto-parietal circuits, including insula, dorsal anterior cingulate cortex, middle frontal gyrus, and posterior parietal cortex. Interestingly, participants’ optimistic score was associated with reduced functional connectivity between prefrontal and parietal circuits during exploration trials. These results have suggested exploitation style require engagement of the neural circuits associating with self-reward system whereas exploration is involved in higher-level of cognitive control brain network. Moreover, these circuits were highly affected by optimistic personality. Our results have provided novel insights not only in uncovering the neural correlates of decision making but also into understanding of managing style in the organization.
Topic Area: THINKING: Decision making