SPATIAL TEMPORAL ORDER JUDGMENT (TOJ), A META-ANALYSIS: STABILITY ACROSS STIMULUS FREQUENCY, DURATION, LOUDNESS, AND METHODOLOGY.

  • Harvey Babkoff
  • Leah Fostick

Abstract

Over the past decade, spatial TOJ has become a fairly popular measure of auditory temporal processing and has been used to compare a variety of populations. Researchers have used a wide range of stimulus parameters in determining TOJ threshold. The present meta-analysis includes 14 studies by the present authors over a decade (N=312). The studies analyzed used different stimulus frequencies ranging from 300-1,500Hz, stimulus durations ranging from 3- 40msec, click stimuli, and different methodologies (constant stimuli and adaptive procedures). TOJ accuracy increases monotonically with stimulus-onset asynchrony (SOA), regardless of stimulus duration, frequency, or methodology (r2=.92). The estimated population mean threshold over all studies equals 67msec, SD=26.5msec (COV=.40) yield a fairly stable estimate of SOA spatial TOJ for young normal adults. These estimated values can then be used as baseline measures against which to compare other populations.

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