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  • Mark Broman
  • Cortex; a journal devoted to the study of the…
  • 1978
Twenty boys at each age level 7, 10, and 13 years and 20 adult males were tested for choice manual reaction times to photographs of faces or letter pairs tachistoscopically presented 3 1/2 degree to the left or 3 1/2 degree to the right of a central fixation point, in the left visual field (LVF) or the right visual field (RVF) respectively. All subjects(More)
Our patient (M.S.) had an abrupt onset of amnesia due to a respiratory arrest at the age of 8 years and has been followed by one of us (A.L.R.) for 19 years. A specially designed MRI study indicated that the neuroanatomical localization of his lesion is restricted to the hippocampal formation bilaterally. Comparison of M.S.'s present IQ and academic scores(More)
Four experiments are presented in which manual reaction times to simple visual or auditory stimuli are compared for bilateral, ipsilateral, and contralateral presentations in normal and dyslexic children at three age levels: 8-9, 10-11, and 12-13 years. While bilateral presentations yielded faster reaction times, there were no consistent right-left(More)
Manual reaction-times and errors to single letter stimuli presented ipsilaterally (intrahemispherically) or contralaterally (interhemispherically) to the responding hand were compared for dyslexic children and normal readers aged 8 to 13 years. Dyslexic children were significantly slower than normal readers across four field-hand conditions, but for the(More)
The Tower of Hanoi has been widely accepted as an evaluation of cognitive procedural learning in amnesia but inconsistent findings have raised questions about the nature of the learning process involved in this task. This article presents the performance of a hippocampal amnesic, MS, who, showing poor learning across daily sessions of a formal evaluation,(More)