Stimulus characteristics determine processing approach on random array letter-cancellation tasks

Brain and Cognition
D S Geldmacher

Abstract

Target-to-distractor ratio strongly influences performance on typical random array letter cancellation tasks, suggesting that a "controlled" processing approach is used. This study was designed to determine whether "automatic" processing could be also demonstrated in the random array cancellation paradigm by changing the perceptual characteristics of the stimuli. Thirty-two healthy subjects sequentially performed four random array cancellation tasks with 50 and 100 stimuli. The letters "I" or "O" were targets and "L" served as the distractor. Performance was measured by the number of correctly canceled targets divided by the time to completion, corrected for accuracy. There was a strong effect of the number of stimuli on forms using I targets (p < .00001), but not for O's (p = . 15) Performance scores were lower for I target forms than for O targets. These findings demonstrate that performance approximating "automatic" processing can also be elicited on clinically useful, office-based, or bedside tests such as random array cancellation.

References

Jan 1, 1992·Gerontology·H TachibanaM Sugita
Dec 1, 1992·Perceptual and Motor Skills·R M RuffT Wylie
Sep 1, 1990·Cortex; a Journal Devoted to the Study of the Nervous System and Behavior·J GrafmanT Sunderland
Feb 1, 1989·Archives of Neurology·S Z RapcsakK M Heilman
Dec 1, 1988·Journal of Neurology, Neurosurgery, and Psychiatry·S Weintraub, M M Mesulam
Jan 1, 1988·Psychological Review·A Treisman, S Gormican
Apr 1, 1986·Perceptual and Motor Skills·R M RuffR H Light
Jun 1, 1973·Neurology·M L Albert
Feb 1, 1984·Journal of Experimental Psychology. Human Perception and Performance·H E EgethH Garbart
Oct 1, 1989·Journal of Cognitive Neuroscience·M EglinR T Knight

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Citations

Jan 8, 2008·Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists·Sonia Maria Dozzi Brucki, Ricardo Nitrini
May 19, 2004·Journal of the International Neuropsychological Society : JINS·Desiree A ByrdJennifer J Manly
Oct 11, 2012·Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition·Ya-Huei WuOlivier Hanon
Apr 14, 2009·Behavior Research Methods·Ho-Chuan Huang, Tsui-Ying Wang
Mar 7, 2014·Psychological Reports·Yoshimi NakajimaHideyuki Okuzumi
Aug 20, 2016·Applied Neuropsychology. Adult·Peii ChenJoan Toglia
Sep 14, 1999·Perceptual and Motor Skills·T M NelsonM Villalon Bravo
Sep 18, 2018·Neuropsychology, Development, and Cognition. Section B, Aging, Neuropsychology and Cognition·Jeroen S BenjaminsStefan Van der Stigchel
Jun 20, 2019·Applied Neuropsychology. Adult·Taim A MuayqilMohammed H Alanazy

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