Dichotic lag effect and intensity.

Preliminary findings in our laboratory have suggested that the 'lag effect' [M. Studdert-Kennedy, D. Shankweiler, and S. Schulman, J. Acoust. Soc. Am. 48, 599-602 (1970); C.I. Berlin, S. Lowe-Bell, J.K. Cullen Jr., and C.L. Thompson, J. Acoust. Soc. Am. 53, 699-708 (1973)] may change at intensities below 75 dB SPL. An experiment is currently underway studying the 'lag effect' at intensities of 50-80 dB SPL and preliminary data suggest there may be a lead effect at low intensities which reverses as both competing syllables are presented at higher intensities. [Supported by National Institutes of Health, USPHS Grant No. NH 11647-01.] [ABSTRACT FROM AUTHOR]