Unisensory and bisensory perceptual and memory processing in stuttering adults and normal speakers |
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| Affiliation: | 1. Queensland Brain Institute, The University of Queensland, Australia;2. Department of Clinical Neurosciences, The University of Cambridge, United Kingdom;3. Department of Psychology, The University of Cambridge, United Kingdom;4. Behavioural and Clinical Neurosciences Institute, University of Cambridge, United Kingdom;5. School of Psychology, The University of Queensland, Australia;1. Department of Psychological Sciences, University of Missouri – St. Louis, United States;2. Department of Psychology, Education and Child Studies, Erasmus University Rotterdam, The Netherlands;1. - Department of Neurology, Gazi University Faculty of Medicine, Ankara, Turkey;2. - Department of Neurology, Clinical Neurophysiology Division, Gazi University Faculty of Medicine, Ankara, Turkey;1. Consciousness Lab, Institute of Psychology, Jagiellonian University, Kraków, Poland;2. Consciousness, Cognition and Computation Group, Université Libre de Bruxelles, Brussels, Belgium;3. Psychophysiology Laboratory, Institute of Psychology, Jagiellonian University, Kraków, Poland |
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| Abstract: | The perceptual/memory process abilities of adult stutterers were compared with those of normal adult speakers. Unisensory tasks were used as standards for comparison of the simultaneous, bisensory processes. Subjects were tested individually on sensory oral form, manual form, and word recall tasks followed by combinations of word recall and oral form discrimination, and word recall and manual form discrimination. Four bisensory combinations were tested, and in each test subjects were asked for the discrimination of the forms or recall of the words. Results showed that on both bisensory tasks in which the subjects were asked for the words rather than the form discrimination the stutterers were significantly poorer than the normals. On the bisensory tasks in which the forms were called for, the stutterers' performances were equal to the normals. No differences were found between the groups on the three unisensory tasks. These findings are related to some processing theories and to EEG studies of word recall in adult stutterers. |
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