@article{ Sinclair_etal00,
  author = {Sinclair, R. J. and Kuo, J. J. and Burton, H.},
  title = {Effects on discrimination performance of selective attention to tactile
	features},
  journal = {Somatosens Mot Res},
  year = {2000},
  volume = {17},
  pages = {145-57},
  number = {2},
  abstract = {This study examined selective attention to tactile dimensions by combining
	a selective cueing paradigm with a test of integrality. In Experiment
	1, subjects selectively attended to changes in the frequency or duration
	of pairs of vibrotactile stimuli and identified the higher frequency
	or longer duration stimulus. In Experiment 2, using surface gratings
	in an identical experimental procedure, subjects identified the rougher
	or longer duration stimulus. In both experiments, greater performance
	accuracy was found on trials where the cue correctly (valid) predicted
	the changing dimension, vs incorrectly (invalid) cued or no-cue (neutral)
	trials. More errors on the invalidly vs neutrally cued trials show
	the cost of focal attention. Increases in performance on validly
	vs neutrally cued trials show a benefit of filtering irrelevant stimuli
	in the cued conditions. Results effectively demonstrate focal attention
	to tactile features. Tests of integrality, in terms of the effects
	of correlated change in both dimensions, showed no redundancy gain
	for either vibrotactile or grating tasks, suggesting that frequency
	and roughness are separable from stimulus duration. Interference
	of negative correlated change for frequency but not roughness discriminations
	may be explained by differences in task difficulty. }
}

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