Amusia is associated with deficits in spatial processing
Amusia is associated with deficits in spatial processing
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DOI：
10.1038/nn1925
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发表时间：
2007-07-01
影响因子：
25
通讯作者：
Bilkey, David K.
中科院分区：
文献类型：
--
作者：
Douglas, Katie M.;Bilkey, David K.
失音乐症（通常称为音盲）是一种难以辨别旋律音高变化的疾病，影响了大约4%的人口。不能将失听症解释为简单的感觉障碍。在这里，我们表明，音乐失认症是密切相关的空间处理在成年人的赤字。与两个匹配的对照组（音乐家和非音乐家）相比，音乐家组的参与者在视觉呈现的心理旋转任务中显着受损。音乐科目也不太容易干扰的空间刺激-反应不兼容的任务，并进行显着快于控制在干扰任务中，他们被要求作出简单的音高歧视，同时执行心理旋转任务。这表明音乐中音高的处理通常取决于用于处理其他模态中的空间表征的认知机制。
Amusia (commonly referred to as tone-deafness) is a difficulty in discriminating pitch changes in melodies that affects around 4% of the human population. Amusia cannot be explained as a simple sensory impairment. Here we show that amusia is strongly related to a deficit in spatial processing in adults. Compared to two matched control groups (musicians and non-musicians), participants in the amusic group were significantly impaired on a visually presented mental rotation task. Amusic subjects were also less prone to interference in a spatial stimulus-response incompatibility task and performed significantly faster than controls in an interference task in which they were required to make simple pitch discriminations while concurrently performing a mental rotation task. This indicates that the processing of pitch in music normally depends on the cognitive mechanisms that are used to process spatial representations in other modalities.