Behavioral evidence for social adaptation.

<p>A. The bars indicate the rates for each trial in which the TM tried to reach the food when the food was placed in the conflict space in the dominant and submissive conditions. When the conflict space was to the right or left side of the TM, the TM used its right or left hand, respectively, to reach for the food. The percentages of trials in which the TM moved its right or left hand toward the right or left conflict space are displayed in a bar graph for each social condition. B. Velocity of hand movement of the TM was plotted for the conflict (upper figure) and no-conflict (lower figure) conditions and for the submissive (blue line) and dominant (red line) conditions. The x-axis indicates time. Time zero on the left side of each panel shows the relative time around the start of the food-presentation period, and time zero on the right side of each figure shows the relative time to the end of the food-presentation period. Around the start and end of the food-presentation period, the velocities of the TM’s reaching motion were pooled for both the left and right arms for each conflict and no-conflict condition and for each submissive and dominant condition. Around the end of the food-presentation period in the conflict condition, we pooled only the velocities of the right and left hands used by the TM to reach food in the no-conflict space on the TM’s side. Around the end of the food-presentation period in the no-conflict condition, we pooled the velocities of the right and left hands used by the TM to reach food on the right and left sides of the TM. The median pooled values were calculated as the velocity of hand movement at that point. C. Bar graph showing the average relative hand position of the TMs on the side of the conflict space during the time window around the start of food presentation from –3000 ms to 1000 ms for M1 and from –3000 ms to 625 ms for M2. In the right- or left-side condition, the mean value of the position of the right or left hand was calculated for each social condition. The axis of the hand position was set to be parallel to a line perpendicular to the line from the center of the TM’s body to the center of the table. Error bars indicate the SDs of the hand position.