Hector Cohen

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This descriptive, correlational study examined the responses and concerns of healthcare professionals about making medication errors and estimated patient harm from such errors. A systematic random sample of nurses, pharmacists, and physicians (N = 402) completed a self-report survey about a medication error they judged to be serious. Respondents were(More)
This study investigated the extent to which each cerebral hemisphere categorizes stimuli varying in texture and shape. Eighteen right-handed subjects, nine males and nine females, rated the perceived dissimilarity between pairs of stimuli presented to both hands and to the right or left hand, with haptic noise in the contralateral hand. Results suggest a(More)
Dichotic speech (CV syllables) and non-verbal stimuli (melodies, tones and triple tones) were presented to 20 French Canadian (10 men, 10 women) and 19 Chinese (10 men, 9 women) right-handed university students to investigate cultural and sexual differences in auditory functional asymmetry. Analyses of variances on correct scores showed a REA in the(More)
The influence of prosody and its visual analog, punctuation, in text comprehension was investigated in two experiments. In the first experiment 20 subjects listened to three taped passages of equal length and difficulty varying in intonation (normal, monotonous, or altered) and were tested on tasks of text comprehension and word recognition. In the second(More)
BACKGROUND Williams Syndrome (WS) is a neurodevelopmental disorder of genetic origin, characterised by relative proficiency in language in the face of serious impairment in several other domains. Individuals with WS display an unusual sensitivity to noise, known as hyperacusis. METHODS In this study, we examined the extent to which hyperacusis interferes(More)
Epilepsy is a major public health threat in the developing world, with much higher prevalence and incidence rates than those observed in developed countries. At present, one of the most common causes for epilepsy worldwide is the parasitic worm, Taenia solium, and the associated neurocysticercosis (NCC) that may often result from this infestation. Worm(More)
Solitary fibrous tumor (SFT) is a ubiquitous neoplasm that arises most commonly from the pleura. SFT arising within lung parenchyma (intrapulmonary SFT) has been rarely reported and is therefore not well recognized. We present a clinicopathologic and immunohistochemical study of 24 cases of primary intrapulmonary SFT. Patients' ages ranged from 44 to 83(More)
This study was concerned with the involvement of the cerebral hemispheres in the acquisition of perceptual skill with novel speech sounds. Two groups of eight subjects rated on three occasions the dissimilarity of pairs of Mandarin Chinese speech sounds varying on voicing and aspiration, presented to the left or right ear with contralateral noise. The(More)