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Published on: November 2, 2012
Hypnotizability and haptics: visual recognition of unimanually explored 'nonmeaningful' objects
E Castellani1, G Carli, E L Santarcangelo
1Department of Physiological Sciences, University of Pisa, Via San Zeno 31, 56127 Pisa, Italy. e.castellani@dfb.unipi.it
Experimental Brain Research
|July 5, 2012
Summary
Individuals with high hypnotizability do not show an advantage in recognizing unfamiliar objects after unimanual exploration. This contrasts with previous findings for bimanual exploration, suggesting different cognitive processes are involved.
Area of Science:
- Cognitive Neuroscience
- Psychology
- Neuroscience
Background:
- Hypnotizability, a cognitive trait, influences sensorimotor integration and mental imagery.
- Previous studies indicate high hypnotizability (Highs) enhances visual recognition of unfamiliar objects during bimanual exploration compared to low hypnotizability (Lows).
Purpose of the Study:
- To investigate if individuals with high hypnotizability (Highs) exhibit a recognition advantage during unimanual object exploration.
- To compare recognition performance between Highs and Lows in a unimanual tactile exploration task.
Main Methods:
- Participants explored unfamiliar objects using a single hand (unimanual exploration).
- Recognition frequency (RF) and Recognition time (RT) for correctly identified objects were recorded.
- Data were analyzed to compare performance between Highs and Lows, and between right and left hand exploration.
Main Results:
- No significant difference in recognition frequency (RF) was found between Highs and Lows.
- Recognition frequency (RF) was comparable for the right and left hands in both groups.
- Slight differences in recognition time (RT) were observed, but without a clear advantage for Highs.
Conclusions:
- The superior performance of Highs in bimanual exploration may be attributed to enhanced hemispheric cooperation.
- In unimanual exploration, task-specific factors, hypnotizability-related cerebral asymmetry, and differing recognition styles likely mitigate performance differences between Highs and Lows.
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