TY - JOUR PY - 2019// TI - Closing-in behavior and motor distractibility in persons with brain injury JO - Archives of clinical neuropsychology A1 - Ambron, Elisabetta A1 - Beschin, Nicoletta A1 - Cerrone, Chiara A1 - Della Sala, Sergio SP - 214 EP - 221 VL - 34 IS - 2 N2 - OBJECTIVE: This study investigates closing-in behavior (CIB), a phenomenon observed in graphic copying tasks when responses encroach upon or overlap the model. The behavior is most common amongst individuals with dementia and amongst pre-school children. We explored the relationship between CIB and the 'distractor effect' in reaching, whereby salient visual stimuli can influence the spatial trajectory of the reach.

METHOD: A group of individuals with overlap-CIB (n = 9), without CIB (n = 9) and healthy controls (HC; n = 6) underwent a task-irrelevant and a task-relevant distractors and the deviation of the movement trajectory towards the distractor location was measured in both tasks.

RESULTS: Individuals with graphic CIB showed more distractor-directed veering during reaching than did individuals without CIB or HC, provided that the distractor was relevant for the reaching task.

CONCLUSIONS: These results strengthen the relationship between CIB and the distractor effect and reinforce the hypothesis that CIB represents a disinhibited tendency to act towards the focus of attention.

Language: en

LA - en SN - 0887-6177 UR - http://dx.doi.org/10.1093/arclin/acy033 ID - ref1 ER -