Edward Hirsh

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The authors investigated strategies used to combine seriated cups by apes (Pan troglodytes and P. paniscus) and monkeys (Cebus apella) using a protocol reported in P. M. Greenfield, K. Nelson, and E. Saltzman's (1972) study with children. It was hypothesized that apes would exhibit more hierarchical combinations of cups than monkeys, given apes' language(More)
Planning is an important component of cognition that contributes, for example, to efficient movement through space. In the current study we presented novel two-dimensional alley mazes to four chimpanzees and three capuchin monkeys to identify the nature and efficiency of planning in relation to varying task parameters. All the subjects solved more mazes(More)
Opioid peptides are present in human cerebrospinal fluid (CSF), and their levels are reported to change in some pathologic conditions. However, less is known about their degradation in CSF. In the present study, human CSF was found to contain aminopeptidase activity which hydrolyzed alanyl-, leucyl- and arginyl-naphthylamides in a ratio of 100:28:27. Twelve(More)
The pathogenesis of myocardial necrosis produced in the albino rat by a single large dose of the potent alpha and beta adrenergic agonist epinephrine was investigated. In confirmation and extension of earlier observations with the alpha adrenergic antagonist tolazoline, it was found that alpha adrenergic blockade with phenoxybenzamine or beta adrenergic(More)
Abstract: Poetry can be a powerful tool in teaching students and residents interpersonal and scientific aspects of clinical medicine. Advantages of using poetry include emotional intensity, succinct, portable formulations and communication of encompassing, ‘existential’ truths. Limitations include learners’ lack of familiarity with the medium of poetry, and(More)
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