Related Experiment Videos
Beyond sensory substitution--learning the sixth sense.
Saskia K Nagel1, Christine Carl, Tobias Kringe
1Institute of Cognitive Science, Albrechtstr. 28, Universität Osnabrück, 49069 Osnabrück, Germany.
Journal of Neural Engineering
|December 1, 2005
Summary
New sensorimotor contingencies, created through vibrotactile stimulation, were learned and integrated by adults. This training altered perception and affected sensory experience, supporting skill-based theories of perception.
Area of Science:
- Neuroscience
- Perception Science
- Sensory Neuroscience
Background:
- Neuroscience research explores the neural basis of consciousness, with theories focusing on sensory areas, neuronal synchronization, and cortical laminae.
- Skill-based theories propose that perception quality is shaped by behavioral changes and learned afferent signals, supported by sensory substitution studies.
Purpose of the Study:
- To investigate the creation of novel sensorimotor contingencies and their impact on perceptual experience.
- To determine if new sensory inputs can be learned, integrated, and alter subjective awareness.
Main Methods:
- Adult participants received orientation information via vibrotactile stimulation around the waist for six weeks.
- A battery of tests evaluated the integration of this new sensory input, including its consistency with other senses and effects on physiological responses.
Main Results:
- The vibrotactile sensory information was processed and enhanced performance.
- Inconsistent sensory signals led to variable performance.
- The new input interacted with vestibular nystagmus.
- Qualitative changes in sensory experience were reported by half of the participants.
Conclusions:
- New sensorimotor contingencies can be learned and integrated into behavior.
- Learned sensorimotor contingencies can influence and alter perceptual experience.
- Findings support the role of learned sensorimotor contingencies in shaping sensory awareness.