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Analogue versus propositional representation in congenitally blind individuals.

Research output: Contribution to journalJournal article

Published

Associated organisational unit

Journal publication date1/12/2006
JournalPsychonomic Bulletin and Review
Journal number6
Volume13
Number of pages7
Pages1049-1055
Original languageEnglish

Abstract

Congenitally blind individuals are generally less accurate at mentally manipulating objects than sighted people. However, they often score higher on tests of short- and long-term verbal memory, and it has been suggested that an enhanced propositional representation compensates for inefficiencies in analogue visuospatial representation. Here, congenitally blind, blindfolded, and sighted participants recalled descriptions of relative object locations. In contrast to previous findings, the congenitally blind participants were as accurate as the blindfolded and sighted individuals at remembering the relative locations of objects, but their memory for the verbatim structure of presented descriptions was worse. We propose that, like sighted people, the congenitally blind spontaneously construct and remember analogue representations of object locations and that the performance discrepancies of the blind arise from the process of managing and manipulating these analogue representations.

Bibliographic note

Ball was lead author, co-designed experiments, co-wrote manuscript. Ball was first co-author's PhD supervisor. RAE_import_type : Journal article RAE_uoa_type : Psychology