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Updated: Feb 6, 2026

Post-Movie Subliminal Measurement PMSM, for Investigating Implicit Social Bias
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Simple geometric shapes are implicitly associated with affective value.

Christine L Larson1, Joel Aronoff2, Elizabeth L Steuer1

  • 1University of Wisconsin-Milwaukee, PO Box 413, Milwaukee, WI 53201, USA.

Motivation and Emotion
|August 21, 2018
PubMed
Summary
This summary is machine-generated.

Simple geometric shapes convey emotion. Downward-pointing triangles, particularly those with acute angles, are perceived as unpleasant, even without conscious thought.

Keywords:
Emotion perceptionIATImplicit cognitionThreat

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Area of Science:

  • Psychology
  • Visual Perception
  • Cognitive Science

Background:

  • Geometric shapes can evoke affective responses.
  • Simple shapes like downward-pointing V's are linked to threat, and curves to pleasantness.
  • These shapes may act as primitive emotional cues.

Purpose of the Study:

  • To investigate if basic geometric shapes are evaluated affectively without extensive cognitive processing.
  • To examine the implicit emotional associations of simple geometric shapes.

Main Methods:

  • Utilized the Implicit Association Test (IAT).
  • Assessed associations between shapes (downward-pointing triangles, upward-pointing triangles, circles) and affective scenes (pleasant, unpleasant, neutral).
  • Conducted two experimental studies.

Main Results:

  • Participants showed faster categorization of downward-pointing triangles as unpleasant compared to neutral or pleasant.
  • This effect was specific to downward-pointing shapes with acute angles.
  • Implicit emotional evaluations occurred rapidly.

Conclusions:

  • Simple geometric forms inherently convey emotion.
  • The perception of emotion from basic shapes does not necessitate explicit judgment.
  • Geometric cues play a role in rapid affective decoding.