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Does a concurrent motor process influence representational momentum?

Simon Merz1, Jana Weiten, Timothy L Hubbard

  • 1Department of Psychology, University of Trier, Rheinland-Pfalz, Germany.

Perception
|September 8, 2023
PubMed
Summary
This summary is machine-generated.

Hand motion direction does not affect representational momentum, which is the extrapolation of perceived object motion. This suggests sensory, not motor, processes underlie this phenomenon.

Keywords:
displacementmotion perceptionmotor processesrepresentational momentum

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Area of Science:

  • Cognitive Psychology
  • Perception
  • Motor Control

Background:

  • Representational momentum involves the extrapolation of perceived object motion.
  • Prior research on mental rotation indicates that concurrent physical motion can influence cognitive processes.
  • The relationship between motor actions and representational momentum is not fully understood.

Purpose of the Study:

  • To investigate if hand motion direction (congruent or incongruent with target motion) influences representational momentum.
  • To determine if the presence or absence of hand motion affects representational momentum.
  • To explore the underlying mechanisms of representational momentum, differentiating between sensory and motor processes.

Main Methods:

  • Participants viewed a target moving leftward or rightward.
  • Participants performed concurrent hand motions: rightward, leftward, or no motion.
  • Representational momentum was measured across all conditions.

Main Results:

  • Robust representational momentum was observed in all experimental conditions.
  • No significant effect of hand motion direction (congruent vs. incongruent) on representational momentum was found.
  • The presence or absence of hand motion did not influence representational momentum.

Conclusions:

  • The findings suggest that representational momentum generation is independent of concurrent hand motion.
  • Results support a sensory-based hypothesis for representational momentum, rather than a motor-based one.
  • Future research should focus on the role of sensory feedback in motion extrapolation.