Recovery of habituation in infants |
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| Authors: | C N Pancratz L B Cohen |
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| Affiliation: | 1. Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi''an 710032, Shaanxi, China;2. Department of Natural Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi''an 710032, Shaanxi, China;3. State Key Laboratory of Cancer Biology, Department of Medical Genetics and Developmental Biology, Fourth Military Medical University, Xi''an 710032, Shaanxi, China;1. The Minimally Invasive New Technologies in Oncologic Surgery (MINTOS) Cooperative Group, The University of Texas MD Anderson Cancer Center, Houston, Texas;2. Department of Surgical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas;3. Department of Biostatistics, The University of Texas MD Anderson Cancer Center, Houston, Texas;4. Department of Urology, The University of Texas MD Anderson Cancer Center, Houston, Texas;1. The Ohio State University, Program in Heath and Rehabilitation Sciences, United States;2. Nationwide Children''s Hospital, The Heart Center, United States;3. The Ohio State University, Division of Physical Therapy, 453W. 10th Avenue, Columbus, OH 43214, United States |
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| Abstract: | On the basis of studies of habituation in animals it was predicted that infants would exhibit habituation of fixation time to a visual stimulus and recovery of fixation time over time. Thirty-two 4-month-old infants were given 10 familiarization trials with one stimulus followed by a retention interval and then presentation of both the familiar and a novel stimulus.Males but not females habituated their fixation time over trials and differentiated between the novel and familiar stimuli when the posthabituation interval was 15 sec, but neither males nor females did so when the interval was 5 min. Evidence for recovery to the familiar stimulus over 5 min was inconclusive due to possible effects of situational fatigue. The results were interpreted in terms of Sokolov's neuronal model of memory. |
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