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      Preattentive extraction of abstract feature conjunctions from auditory stimulation as reflected by the mismatch negativity (MMN).

      Psychophysiology
      Acoustic Stimulation, Adult, Attention, physiology, Auditory Perception, Female, Humans, Male

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          Abstract

          Brain mechanisms extracting invariant information from varying auditory inputs were studied using the mismatch-negativity (MMN) brain response. We wished to determine whether the preattentive sound-analysis mechanisms, reflected by MMN, are capable of extracting invariant relationships based on abstract conjunctions between two sound features. The standard stimuli varied over a large range in frequency and intensity dimensions following the rule that the higher the frequency, the louder the intensity. The occasional deviant stimuli violated this frequency-intensity relationship and elicited an MMN. The results demonstrate that preattentive processing of auditory stimuli extends to unexpectedly complex relationships between the stimulus features.

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          Author and article information

          Journal
          11347880
          10.1111/1469-8986.3820359

          Acoustic Stimulation,Adult,Attention,physiology,Auditory Perception,Female,Humans,Male

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