Kk. Shieh et al., EFFECTS OF DURATION OF STIMULUS AND VARIABILITY OF FOREPERIOD ON THE IDENTIFICATION OF MULTIDIMENSIONAL STIMULI, Perceptual and motor skills, 84(3), 1997, pp. 1379-1393
Two experiments were conducted to investigate the effects of duration
of stimulus and variability of foreperiod on the identification of mul
tidimensional stimuli. Statistical analysis showed that performance sp
eed and accuracy deteriorated as duration of stimulus was severely lim
ited. Further, subjects seemed to change the allocation of attentional
resources according to the attributes of stimulus. They tended to dis
tribute more attentional resources to the less salient attribute which
resulted in a statistically nonsignificant effect of order of report
under time stress. Variability of foreperiod had very little effect on
performance and may not be important to consider in reactions. Implic
ations of these results for the design of multidimensional displays an
d for human information processing were discussed.