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Abandoning and modifying one action plan for alternatives.

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  • 1Department of Cognitive, Linguistic and Psychological Sciences, Brown University, PO Box 1821, Providence, RI 02912, USA joo-hyun_song@brown.edu.

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Summary
This summary is machine-generated.

The brain uses internal signals, not just external cues, to select, change, or cancel actions. This involves parallel motor planning and interactions with perception and attention for effective goal-directed behavior.

Keywords:
attentionchanges-of-mindparallel processingtarget selectionvisually guided action

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Motor Control

Background:

  • Complex visual scenes require selecting single objects for goal-directed actions.
  • External cues can stop actions, but internal signals (experience, cognition, attention) also play a crucial role.
  • Understanding internal action plan modification is key to motor control.

Purpose of the Study:

  • To investigate internal processes for selecting, abandoning, and modifying action plans.
  • To explore how the brain resolves competition among multiple motor plans.
  • To understand the interplay between sensorimotor networks and cognitive processes in action control.

Main Methods:

  • Analysis of parallel motor planning processes.
  • Examination of the interaction between action systems, perception, attention, and memory.
  • Tracking continuous modification of action trajectories to infer cognitive states.

Main Results:

  • Parallel motor planning enables efficient and timely changes to actions.
  • Action selection is biased by perception, attention, and memory, which also suppress errors.
  • Action trajectory modifications can reveal shifts in internal cognitive states.

Conclusions:

  • Sensorimotor networks dynamically modify actions by evaluating alternatives.
  • This modification occurs in concert with distributed perceptual and cognitive networks.
  • Internal signals are critical for adaptive, goal-directed behavior in complex environments.