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Synaesthesia as a model system for understanding variation in the human mind and brain
1School of Psychology, University of Sussex, Brighton, UK.
Cognitive Neuropsychology
|July 16, 2021
Summary
Synaesthesia offers a unique window into brain development, revealing how genetic and neurodevelopmental factors shape cognitive variations. Studying synaesthesia helps understand the diverse construction of the human mind and brain.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Genetics
Background:
- Synaesthesia involves experiencing sensory stimuli in unusual ways (e.g., colored numbers).
- The underlying causes and broader implications of synaesthesia remain incompletely understood.
Purpose of the Study:
- To reframe synaesthesia as a model system for studying human cognitive and neural variation.
- To explore synaesthesia's role in understanding neurodevelopmental processes and individual differences.
Main Methods:
- Conceptual review and theoretical argument.
- Integration of genetic, neurodevelopmental, and cognitive perspectives.
Main Results:
- Synaesthesia arises from an unusual neurodevelopmental cascade, influencing cognition and potentially predisposing to clinical vulnerabilities.
- Brain differences in synaesthetes correlate with distinct cognitive styles, such as enhanced memory and imagery.
Conclusions:
- Synaesthesia is not merely an exceptional experience but a product of neurodevelopmental variation.
- It serves as a valuable model for a neuropsychological approach to individual differences in cognition and brain function.
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