Attention modulates auditory pattern memory as indexed by event-related brain potentials

Author(s): Woods, D. L.

Journal/Book: Psychophysiology. 1997; 34: 1010 Vermont Ave NW, Suite 1100, Washington, DC 20005. Soc Psychophysiol Res. 534-546.

Abstract: The role of selective attention on auditory pattern processing was investigated using the mismatch negativity, an event-related brain potential component associated with sensory memory. Participants responded to changes in an alternating tone pattern in a designated ear while a similar auditory pattern was presented in the opposite ear. Participants were also presented with the same sequences while reading a hook (no response required). In all conditions, changes in the pattern elicited a mismatch negativity (MMN) that peaked at 160-220 ms poststimulus. MMN amplitude varied with attention: the amplitude was higher in response to deviant stimuli presented in the attended ear than to the deviant stimuli presented in the unattended ear or juring reading. The results show that selective attention modulates auditory pattern memory.

Note: Article Alain C, Baycrest Ctr Geriatr Care, Rotman Res Inst, 3560 Bathurst St, N York, ON M6A 2E1, CANADA

Keyword(s): event-related potentials; tone pattern; mismatch negativity; auditory; perception; attention; MISMATCH NEGATIVITY; SELECTIVE ATTENTION; TONAL PATTERNS; STIMULI; HUMANS; COMPONENTS

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