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A Two-interval Forced-choice Task for Multisensory Comparisons
Published on: November 9, 2018
Training enhances the interference of numerosity on duration judgement
Amir Homayoun Javadi1, Clarisse Aichelburg
1Section of Systems Neuroscience, Department of Psychiatry and Psychotherapy, Technische Universität Dresden, Dresden, Germany. a.h.javadi@gmail.com
Plos One
|January 18, 2013
Summary
Training to judge item quantity (numerosity) increased susceptibility to its influence on judging time (duration). This effect on magnitude perception was temporary, disappearing after three months.
Area of Science:
- Cognitive psychology
- Neuroscience
- Perception science
Background:
- Cross-dimensional magnitude interference is known.
- The impact of training in one magnitude on another remains unexplored.
Purpose of the Study:
- Investigate how numerosity judgment training affects duration judgment.
- Examine the modifiability of cross-dimensional magnitude interference.
Main Methods:
- 32 participants completed duration judgment tasks.
- A training group received 11 numerosity judgment sessions.
- Control group received no numerosity training.
Main Results:
- Numerosity training group showed increased interference of numerosity on duration judgment.
- This effect was not present at a 3-month follow-up.
- Training temporarily altered magnitude perception.
Conclusions:
- Cross-dimensional magnitude interference is modifiable by training.
- Neural plasticity in shared brain regions may underlie this effect.
- Higher-level perceptual processes might mediate the modulation.
