學院

醫學院

系所

職能治療學系

題名

Effects of lateralized light flash and color on unilateral neglect

作者

Fan, Y-T., Wu, C-Y., Tsai, W-C., & Lin, K-C.*

期刊名稱

Disability and Rehabilitation

發表日期

2015

著作性質

原著

語文

英文

關鍵字

unilateral neglect; stroke, lateralized lights, color

摘要

Purpose: Bottom-up-based sensory stimulation has been useful in promoting recovery from post-stroke neglect. Light and color are salient stimuli for guiding our orienting behaviors and influence the degree of spatial bias. This study evaluated the effects of lateralized light flash and color on spatial bias in unilateral neglect (UN).

Method: We enrolled 15 individuals with UN as a consequence of a right hemispheric stroke of less than 65 days. This was a 3 × 3 design study with three conditions of lens color (colorless, red, and blue) and three conditions of flash light locations (no flash, left, and right).

Results: All participants showed a decrease in ipsilesional spatial bias under left-side light flash and a red lens. Right-side light flash and a blue lens induced more rightward bias than other conditions.

Conclusions: This evidence confirms the use of sensory stimulation to complement post-stroke UN remediation. Lateralized light flash to the contralesional space and red-colored lenses have beneficial effects on amelioration of UN, whereas ipsilesional light flash and the color blue may exacerbate ipsilesional spatial bias in stroke survivors with UN.