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Biomedical subjects

S Axelrod

Publications and source records attributed to S Axelrod.

At least 55 records · Page 3Linked to original sources

Earedness (ear choice in monaural tasks): its measurement and relationship to other lateral preferences.

A total of 373 normal young adult subjects were distributed among 5 experiments measuring earedness. Handedness, eyedness and familial L-handedness were also indexed. Special care was taken to remove environmental asymmetries when determining ear preference when listening to sound from a suspended earphone, and from a stopwatch on a table, and for using a telephone symmetrically constructed and displayed. Ear preference was strongly influenced by seemingly minor environmental asymmetries and did not influence telephone habits, and must be considered a very weak lateral preference. Earedness was as concordant with handedness as eyedness was found to be; earedness was concordant with handedness in 74% of dextrals and 65% of sinistrals, but earedness was not related to eyedness. Earedness did not vary with putatively hemisphere-specific stimulus types (music, speech). Laterality of telephone use was jointly determined by handedness and the expectation of writing, not by earedness.

Adult↗

On the laterality of psychogenic somatic symptoms.

Tabulation of cases reported in the literature of unilateral psychogenic somatic symptoms revealed that more symptoms were on the left side of the body than on the right; this result, although falling short of statistical significance, is consistent with recent reviews of hospital records by Stern and by Galin et al. A review of organic diseases and traumata for which lateral preferences have been reported, and a retrospective study of hospital emergency room records, provided no evidence for the hypothesis that the left-sided predominance of psychogenic symptoms is underlain by a generalized greater vulnerability of the left side to organic pathologies. The satus of three other explanations for the asymmetrical incidence of psychogenic symptoms is discussed.

Conversion Disorder↗

Classification of random forms and distortions presented to the left or right visual field.

Twenty right-handed undergraduate men were taught in free vision to categorize distortions of prototypic random forms and were then tested in a Go/No Go task with lateralized tachistoscopic presentations of previously sorted (old) distortions, new distortions, the prototypes, and unrelated forms. Accuracy of performance on positive items increased in the order New less than Old less than Prototype. More false alarms occurred to unrelated items in the right than in the left visual field, suggesting that the trace systems generated during training had different characteristics in the two hemispheres.

Discrimination Learning↗

Modification of behavior problems in the home with a parent as observer and experimenter.

Four parents enrolled in a Responsive Teaching class carried out experiments using procedures they had devised for alleviating their children's problem behaviors. The techniques used involved different types of reinforcement, extinction, and punishment. One parent increased the frequency of the wearing of an orthodontic device during five daily time checks by making an immediate monetary payoff contingent on wearing the device. A second parent increased the number of points earned for doing daily household tasks by providing back-ups for which the points could be exchanged. The parents of a 4-yr-old boy decreased the frequency of whines, cries, and complaints by removing social attention when such behavior occurred. A mother decreased the duration of time it took for her 5-yr-old daughter to get dressed by making permission to watch television contingent on dressing within 30 min of the time she got up in the morning. Brief reversals of contingencies were used to show causal relationships between the procedures used and the changes in behavior. Checks on the reliability of measurement were made by persons present in the home.

Journal Article↗