Publicación: STRATEGIC SPATIAL ANCHORING AS COGNITIVE COMPENSATION DURING WORD CATEGORIZATION IN PARKINSON S DISEASE: EVIDENCE FROM EYE MOVEMENTS
Fecha
2020
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JOURNAL OF PSYCHOLINGUISTIC RESEARCH
Resumen
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. PARKINSONS 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 PARKINSONS 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.
