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Mario Dalmaso1, Maryam Jansarvatan2, Anna Lorenzoni2

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This summary is machine-generated.

Reading direction influences how people perceive spatial magnitudes like speed. Italians (left-to-right) mapped speed differently than Iranians (right-to-left), showing cultural habits shape magnitude representation.

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Area of Science:

  • Cognitive Psychology
  • Cross-Cultural Psychology
  • Neuroscience

Background:

  • Spatial representation of abstract quantities like numbers and time can be influenced by cultural habits, particularly reading and writing direction.
  • Previous research shows inconsistent effects for numerical magnitudes compared to time, possibly because reading direction is not inherently linked to numerical content.
  • Experiential associations are hypothesized to underlie the spatial representation of magnitudes.

Purpose of the Study:

  • To investigate cross-cultural differences in the spatial representation of visual speed.
  • To examine if reading and writing direction (left-to-right vs. right-to-left) influences the spatial mapping of motion perception.

Main Methods:

  • Comparison of visual speed perception between Italian (left-to-right reading) and Iranian (right-to-left reading) participants.
  • Participants judged the speed of a random dot kinematogram relative to a reference speed.
  • Response mapping involved using left or right keys to indicate faster or slower judgments.

Main Results:

  • Italian participants exhibited a left-to-right spatial mapping for visual speed.
  • Iranian participants demonstrated a right-to-left spatial mapping for visual speed.
  • Opposite spatial mappings were observed, correlating with participants' reading and writing directions.

Conclusions:

  • Reading and writing direction significantly shapes the spatial representation of magnitudes.
  • Directional reading experiences, like those associated with motion perception, are intrinsically linked to cultural spatial mappings.
  • Cultural habits related to sequential information processing influence the perception of non-numerical, directional magnitudes.