Motor Control Benefits Short-Term Recall of Item-Outcome Associations
Wed—Casino_1.811—Poster3—9206
Presented by: Elif Gezen
Sense of agency is the experience of control over actions and their outcomes. Recent investigations yielded inconsistent findings on whether the sense of agency facilitates recall or not. Ruiz et al. (2023) proposed that the sense of agency selectively benefits associative memory when goal-directed choices are involved. Agency-induced improvements in memory may be grounded in motor control. Following this, we examined whether motor control facilitates memory of item-outcome associations during reinforcement learning. In each trial, participants (N = 25) chose one of two targets and subsequently used a computer trackpad to steer a cursor to the selected target, followed by a positive (4-cent gain) or negative (2-cent loss) outcome. By learning which target was more rewarding, participants could maximize their monetary gain. We manipulated motor control in alternating blocks by disrupting cursor movement. Results show that participants’ reaction times until target choice were significantly higher for the low motor control condition, potentially reflecting an increase in cognitive load. Participants showed similar learning of target-outcome associations for the low and high motor control conditions. In addition, during the associative memory task, participants’ proportion of correct high-value target recognition was significantly higher than from chance level only for the high, but not the low motor control condition. Our findings indicate that high motor control benefits short-term performance in recalling item-outcome associations, potentially underlying agency-induced facilitation of associative memory during goal-directed behavior.
Keywords: motor control, sense of agency, associative memory