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Shifting attention does not influence numerical processing.

Andrew Clement1,2, Alexandra Moffat3, Jay Pratt3

  • 1Department of Psychology, University of Toronto, Toronto, ON, M5S 1A1, Canada. andrew.clement@tamu.edu.

Attention, Perception & Psychophysics
|September 11, 2020
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Summary
This summary is machine-generated.

This study shows numbers and space share response representations, evidenced by the Spatial Numerical Association of Response Codes (SNARC) effect. However, attentional shifts do not significantly influence numerical processing or spatial number representation.

Keywords:
AttentionEmbodied cognitionNumbersSpatial cueingSpatial processing

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Area of Science:

  • Cognitive Psychology
  • Neuroscience
  • Numerical Cognition

Background:

  • Numerical cognition theories often propose shared representations between numbers and space at the response level.
  • The Spatial Numerical Association of Response Codes (SNARC) effect demonstrates faster responses to small numbers with the left hand and large numbers with the right.
  • Spatial shifts of attention might influence the spatial representation of numbers.

Purpose of the Study:

  • To investigate whether shifts in attention impact numerical processing.
  • To examine the interplay between spatial attention, numerical magnitude, and response mapping.

Main Methods:

  • Participants performed an odd-even judgment task after viewing peripheral directional cues (leftward/rightward).
  • Response times and error rates were analyzed based on cue direction, number magnitude, and response side compatibility.
  • The study manipulated the task relevance of number magnitude and the explicitness of number-space associations.

Main Results:

  • A response-based SNARC effect was observed: faster, more accurate responses when number magnitude and response side were compatible.
  • A Simon effect was found: faster responses when cue direction and response side were compatible.
  • No compatibility effect was observed between cue direction and number magnitude, indicating attention did not influence numerical processing directly.

Conclusions:

  • Numbers and space share a common representation at the response level, supporting existing theories.
  • Attentional shifts do not appear to play a significant role in the spatial representation of numbers.
  • The findings highlight the distinction between response-level associations and attentional influences in numerical cognition.