Kim Soyeon, Al-Haj Mohamed, Fuller Stuart, Chen Samantha, Jain Umesh, Carrasco Marisa, Tannock Rosemary
Department of Applied Psychology & Human Development, OISE, University of Toronto, 252 Bloor Street West, Toronto M5S 1V6, Ontario, Canada.
Behav Brain Funct. 2014 Oct 24;10:39. doi: 10.1186/1744-9081-10-39.
To investigate the impact of exogenous covert attention on chromatic (blue and red) and achromatic visual perception in adults with and without Attention Deficit Hyperactivity Disorder (ADHD). Exogenous covert attention, which is a transient, automatic, stimulus-driven form of attention, is a key mechanism for selecting relevant information in visual arrays.
30 adults diagnosed with ADHD and 30 healthy adults, matched on age and gender, performed a psychophysical task designed to measure the effects of exogenous covert attention on perceived color saturation (blue, red) and contrast sensitivity.
The effects of exogenous covert attention on perceived blue and red saturation levels and contrast sensitivity were similar in both groups, with no differences between males and females. Specifically, exogenous covert attention enhanced the perception of blue saturation and contrast sensitivity, but it had no effect on the perception of red saturation.
The findings suggest that exogenous covert attention is intact in adults with ADHD and does not account for the observed impairments in the perception of chromatic (blue and red) saturation.
研究外源性隐蔽注意对患有和未患有注意力缺陷多动障碍（ADHD）的成年人的色彩视觉（蓝色和红色）及非色彩视觉感知的影响。外源性隐蔽注意是一种短暂、自动、由刺激驱动的注意形式，是在视觉阵列中选择相关信息的关键机制。
30名被诊断患有ADHD的成年人和30名年龄及性别匹配的健康成年人，完成了一项心理物理学任务，该任务旨在测量外源性隐蔽注意对感知到的颜色饱和度（蓝色、红色）和对比敏感度的影响。
两组中外源性隐蔽注意对感知到的蓝色和红色饱和度水平以及对比敏感度的影响相似，男性和女性之间无差异。具体而言，外源性隐蔽注意增强了对蓝色饱和度和对比敏感度的感知，但对红色饱和度的感知没有影响。
研究结果表明，患有ADHD的成年人的外源性隐蔽注意是完整的，并且不能解释观察到的色彩（蓝色和红色）饱和度感知障碍。
