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Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions
Published on: June 21, 2019
Action relations facilitate the identification of briefly-presented objects.
Katherine L Roberts1, Glyn W Humphreys
1Brain and Behavioural Sciences, School of Psychology, University of Birmingham, Birmingham, B15 2TT, UK. k.l.roberts.1@bham.ac.uk
Attention, Perception & Psychophysics
|January 26, 2011
Summary
Action relations improve object perception. Objects correctly positioned for interaction are identified better, especially when oriented for dominant hand use, demonstrating visuomotor and grouping effects.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Visual Perception
Background:
- The perception-action link enables fluid interaction with the environment.
- Action affordances of objects trigger visuomotor responses, aiding compatible actions.
- Object positioning for interaction facilitates grouping, as seen in extinction patients identifying interacting objects.
Purpose of the Study:
- To investigate how action relations influence object perception in typical individuals.
- To determine if object co-location and interaction potential affect perceptual identification.
- To differentiate the impact of action relations on 'active' versus 'passive' objects in an interaction.
Main Methods:
- Presenting briefly-exposed objects in correct and incorrect action-related co-locations.
- Assessing object identification accuracy based on spatial arrangement and interaction pairs.
- Manipulating object orientation relative to the viewer's dominant hand.
- Comparing perception of action-related pairs (corkscrew-bottle) versus unrelated pairs (corkscrew-candle).
Main Results:
- Improved object identification when objects were co-located for action compared to incorrect positions.
- Enhanced perceptual benefit for the 'active' object (corkscrew) when oriented for dominant hand use.
- Stronger positional benefit for the 'passive' object (bottle) in action-related pairs, reduced by disrupted grouping cues.
Conclusions:
- Action relations impact normal perception through two distinct mechanisms.
- Visuomotor responses are elicited by objects affording strong actions.
- Grouping effects emerge between objects forming action-related pairs, influencing perception.
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