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Biomedical subjects

I P Levin

Publications and source records attributed to I P Levin.

13 recordsLinked to original sources
PubMed1995

A new laboratory method for altering positive affect.

This paper reports the development with 95 undergraduates of a new method for altering Positive Affect in the laboratory. The method consists of assigning persons to complete a boring task for a specific amount of time and shortly after beginning the task, informing them that the assigned time period has either been increased or reduced. The advantages of this method are that it is effective, relatively free of demand characteristics, ethical, fast to administer, and parallels "real world" experiences. In addition, this procedure seems to circumvent limitations of other mood-induction procedures.

Adult↗
PubMed1993

Risky decision making and allocation of resources for leukemia and AIDS programs.

Traditional judgment and decision-making paradigms were expanded to include differential reactions to persons with leukemia or AIDS. Experiments 1 and 2 adopted Tversky and Kahneman's risky-decision-making task and found support for different value functions for the 2 patient groups when choosing between treatment programs. From these results, the subjective value of saving a fixed number of lives appears to be greater for persons with leukemia than for persons with AIDS. Experiment 3 provided additional data concerning differential perceptions of the causes of AIDS. This proved to be a useful means of classifying Ss who did and did not devalue the lives of persons with AIDS.

Acquired Immunodeficiency Syndrome↗
PubMed1978

The need for process research on psychophysical judgment: comments on "Ratio and subtractive processes in psychophysical judgment" by Veit.

This article is a commentary on Veit's article "Ratio and Subtractive Processes in Psychophysical Judgment." Veit's article makes an important contribution to the area of psychophysical judgment by providing a systematic approach that combines measurement and psychological theory. Using multi-factor designs and a cross-task scale-invariance criterion, Veit shows how to concurrently examine the integration rule, response-transformation function, and psychophysical function for judgment tasks. The need to expand this methodology to further understand the operations and processes underlying psychophysical judgment is stressed in the present article, and an illustration involving feedback mechanisms is provided.

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