Harry R. M. Purser

Publications30
h-index9
Citations257
Highly Influential Citations12
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The development of route learning in Down syndrome, Williams syndrome and typical development: investigations with virtual environments.
The ability to navigate new environments has a significant impact on the daily life and independence of people with learning difficulties. The aims of this study were to investigate the development… Expand
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Route knowledge and configural knowledge in typical and atypical development: a comparison of sparse and rich environments
BackgroundIndividuals with Down syndrome (DS) and individuals with Williams syndrome (WS) have poor navigation skills, which impact their potential to become independent. Two aspects of navigation… Expand
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The development of metaphorical language comprehension in typical development and in Williams syndrome.
The domain of figurative language comprehension was used to probe the developmental relation between language and cognition in typically developing individuals and individuals with Williams syndrome.… Expand
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Short-term memory in down syndrome
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Poor phonemic discrimination does not underlie poor verbal short-term memory in Down syndrome.
Individuals with Down syndrome tend to have a marked impairment of verbal short-term memory. The chief aim of this study was to investigate whether phonemic discrimination contributes to this… Expand
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Short- and long-term memory contributions to immediate serial recognition: Evidence from serial position effects
A long-standing body of research supports the existence of separable short- and long-term memory systems, relying on phonological and semantic codes, respectively. The aim of the current study was to… Expand
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Understanding Risky Behavior: The Influence of Cognitive, Emotional and Hormonal Factors on Decision-Making under Risk
Financial risky decisions and evaluations pervade many human everyday activities. Scientific research in such decision-making typically explores the influence of socio-economic and cognitive factors… Expand
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Judging the morality of utilitarian actions: How poor utilitarian accessibility makes judges irrational
Is it acceptable and moral to sacrifice a few people’s lives to save many others? Research on moral dilemmas in psychology, experimental philosophy, and neuropsychology has shown that respondents… Expand
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Definitions versus categorization: assessing the development of lexico-semantic knowledge in Williams syndrome.
BACKGROUND Williams syndrome (WS) is associated with relatively strong language abilities despite mild to moderate intellectual disability, particularly when language is indexed by vocabulary. AIMS… Expand
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Improving working memory abilities in individuals with Down syndrome: a treatment case study
Working memory (WM) skills of individuals with Down’s syndrome (DS) tend to be very poor compared to typically developing children of similar mental age. In particular, research has found that in… Expand
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