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Updated: Jun 3, 2026
04:40
Tactile Semiautomatic Passive-Finger Angle Stimulator (TSPAS)
Published on: July 30, 2020
Implicit processing of tactile information: evidence from the tactile change detection paradigm
David Pritchett1, Alberto Gallace, Charles Spence
1Department of Experimental Psychology, University of Oxford, Oxford, UK.
Consciousness and Cognition
|April 5, 2011
Summary
Implicit change detection exists in touch, similar to vision. Even when people don't consciously notice tactile changes, their brains can still process them, suggesting an underlying sensory comparison mechanism.
Area of Science:
- Cognitive Psychology
- Neuroscience
- Haptics
Background:
- Visual change blindness demonstrates awareness is not required for change detection.
- The existence of similar implicit change detection in the tactile sense remains largely unexplored.
Purpose of the Study:
- To investigate implicit tactile change detection.
- To determine if tactile change detection relies on spatial attention shifts.
Main Methods:
- Participants performed tasks involving consecutively presented tactile displays.
- Change blindness was assessed, followed by forced-choice responses to gauge implicit detection.
- Spatial attention was monitored in relation to change detection.
Main Results:
- Tactile change blindness was observed, with participants often failing to report changes.
- Implicit tactile change detection was evident through above-chance performance in forced-choice tasks.
- Tactile change detection did not necessitate a shift in spatial attention.
Conclusions:
- Implicit change detection is a phenomenon present in the tactile modality.
- Tactile change detection likely involves comparing sensory representations rather than attentional shifts.
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