Ruusuvirta Timo, Huotilainen Minna, Fellman Vineta, Näätänen Risto
Cognitive Brain Research Unit, Department of Psychology, PO Box 9, FIN-00014 University of Helsinki, Helsinki.
Neuroreport. 2003 Nov 14;14(16):2117-9. doi: 10.1097/00001756-200311140-00021.
To process a stimulus as a holistic entity, the human brain must be able to conjoin its different features. Previous evidence suggests that this ability emerges during the first months of life, implying its considerable dependence on postnatal development. We recorded human newborn (1-3 days of age) electrical brain responses to frequently occurring (standard) sounds and to rarely occurring (deviant) sounds in a series. Responses to deviants differed from those to standards despite the fact that only the combination of sound frequency and intensity could be used as a cue for discriminating between these sound types. Our finding suggests that the human brain is ready for auditory feature binding very soon after birth.
为了将刺激作为一个整体来处理，人类大脑必须能够将其不同特征结合起来。先前的证据表明，这种能力在生命的最初几个月出现，这意味着它在很大程度上依赖于出生后的发育。我们记录了人类新生儿（1至3日龄）对一系列频繁出现（标准）声音和罕见出现（偏差）声音的脑电反应。尽管只有声音频率和强度的组合可以作为区分这些声音类型的线索，但对偏差声音的反应与对标准声音的反应不同。我们的发现表明，人类大脑在出生后很快就准备好进行听觉特征绑定。
