Strategic spatial anchoring as cognitive compensation during word categorization in Parkinson’s Disease: Evidence from eye movements
Author
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Riffo, Bernardo
Author
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Guerra Gil, Ernesto
Author
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Rojas, Carlos
Author
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Novoa, Abraham
Author
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Véliz, Mónica
Admission date
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2020-09-08T20:14:48Z
Available date
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2020-09-08T20:14:48Z
Publication date
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2020
Cita de ítem
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Journal of Psycholinguistic Research (2020)
es_ES
Identifier
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10.1007/s10936-020-09718-3
Identifier
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https://repositorio.uchile.cl/handle/2250/176730
Abstract
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The association between a word and typical location (e.g., cloud-up) appears to modulate healthy individuals' response times and visual attention. This study examined whether similar effects can be observed in a clinical population characterized by difficulties in both spatial representation and lexical processing. In an eye-tracking experiment, participants categorized spoken words as either up-associated or down-associated. Parkinson's disease patients exhibited a tendency to maintain their visual attention in the upper half of the screen, however, this tendency was significantly lower when participants categorized concepts as down-associated. Instead, the control group showed no preference for either the upper or lower half of the screen. We argue that Parkinson's disease patients present an over-reliance on space during word categorization as a form of cognitive compensation. Such compensation reveals that this clinical population may use spatial anchoring when categorizing words with a spatial association, even in the absence of explicit spatial cues.
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Patrocinador
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Agencia Nacional de Investigación y Desarrollo (ANID; National Agency for Research and Development, Government of Chile) under grant FONDECYT
1150336
ANID/PIA/Basal Funds for Centers of Excellence