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A single system account of enhanced recognition memory in synaesthesia
Version 2 2023-06-12, 09:15
Version 1 2023-06-09, 19:47
journal contribution
posted on 2023-06-12, 09:15 authored by Nicolas Rothen, Christopher J Berry, Anil SethAnil Seth, Sabine Oligschläger, Jamie WardJamie WardResearchers often adjudicate between models of memory according to the models’ ability to explain impaired patterns of performance (e.g. in amnesia). In contrast, evidence from special groups with enhanced memory is very rarely considered. Here, we explored how people with unusual perceptual experiences (synaesthesia) perform on various measures of memory and test how computational models of memory may account for their enhanced performance. We contrasted direct and indirect measures of memory (i.e. recognition memory, repetition priming, and fluency) in grapheme-colour synaesthetes and controls using a Continuous Identification with Recognition (CID-R) paradigm. Synaesthetes outperformed controls on recognition memory and showed a different reaction time pattern for identification. The data were most parsimoniously accounted for by a single-system computational model of the relationship between recognition and identification. Overall, the findings speak in favour of enhanced processing as an explanation for the memory advantage in synaesthesia. In general, our results show how synaesthesia can be used as an effective tool to study how individual differences in perception affect cognitive functions.
History
Publication status
- Published
File Version
- Published version
Journal
Memory and CognitionISSN
0090-502XPublisher
Psychonomic SocietyExternal DOI
Page range
1-12Department affiliated with
- Informatics Publications
Research groups affiliated with
- Sackler Centre for Consciousness Science Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2019-12-02First Open Access (FOA) Date
2020-02-24First Compliant Deposit (FCD) Date
2019-11-28Usage metrics
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