Связывание признаков в зрительной модальности зависит от внимания: анализ негативности рассогласования

Журнал высшей нервной деятельности им. И.П. Павлова. 2019. Т. 69. № 1. С. 37–50.

Сайфулина К. Э., Lazarev I. E., Chernysheva E. G., Chernyshev B. V.

The current study aimed to find out whether attention is required for visual feature binding. Participants performed a visual discrimination task with Gabor grates, which differed in two features: spatial frequency and angle. Detection of deviant stimuli against standards was possible exclusively by feature conjunctions rather than by separate features. We analyzed event-related potentials under four experimental conditions: selective attention to the target stimulus; selective ignoring of the non-target stimulus; nonselective distributed attention to all stimuli within visual modality; cross-modal shift of attention from the visual to the audial modality. Mismatch negativity was present only in conditions of attention to visual stimuli – both selective and distributed. The finding evidences that feature binding occurred only under conditions of attention towards visual stimuli.

Keywords: visual perception, зрительное восприятие, вызванные потенциалы, oddball, связывание признаков, mismatch negativity, Негативность рассогласования, feature binding, оддболл, evoked potentials