Embodied object concepts: The contribution of structural and functional manipulability depends on available visual
Heath E Matheson1, Josh P Salmon1, Michelle Tougas1
1Department of Psychology, Dalhousie University.
Summary
Object identification relies on sensorimotor experience. Visual information availability influences whether structural or functional object properties drive recognition.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Visual Perception
Background:
- Object identification is influenced by sensorimotor experiences.
- Embodied object representations are modulated by contextual visual information.
- Manipulability plays a role in how objects are represented conceptually.
Purpose of the Study:
- To investigate how visual information availability affects the role of object manipulability in object identification.
- To differentiate the effects of structural and functional manipulability on object recognition.
- To explore the neural underpinnings related to the dorsal visual stream.
Main Methods:
- Utilized a visual masking paradigm to manipulate the availability of visual information.
- Employed an object naming task (linguistic response) and a picture-word matching task (manual response).
- Controlled for object familiarity and age of name acquisition.
Main Results:
- Structural manipulability effects were stronger with unmasked (visible) objects.
- Functional manipulability effects were stronger with masked (less visible) objects.
- These findings were independent of object familiarity or age of acquisition.
Conclusions:
- Structural and functional manipulability have dissociable effects on object identification.
- Visual information availability determines which aspect of manipulability drives object recognition.
- Results support activation within dorsal visual stream pathways for embodied action information.
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