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Integrative Psychological and Behavioral Science -     

Frequency distribution of interresponse times during VI and VR reinforcement

A detailed analysis was made of the interresponse times (IRTs) of two rats under both a VI 40-sec and a VR 15-sec schedule. Except for the latency of the first response after a reinforcement, the mean IRTs of all further responses differed little. Similarly, the frequency distributions of the successive IRTs did not vary greatly, but were of no simple form. Sequential dependencies between successive IRTs were small, never accounting for more than 1% of the variance.     

Effects of Race,Racial Identity Development,and Orientation Style on Perceived Consultant Effectiveness

This study explores Black teachers' preferences for and ratings of consultant effectiveness as a function of consultant race, consultant style, and teacher stage of racial identity development. No significant differences were noted in preferences for either a same- or opposite-race consultant. Participants preferred and rated as more effective an instrumentally oriented consultant.     

Time-stamping computer events to report .1-msec accuracy of events in the Micro Experimental Laboratory

A critical problem in most real-time programming tasks is the verification that timing of the presented displays and recorded events occur at the expected times. It is often difficult for psychologists to verify critical timing because of the lack of costly specialized tools and technicians to measure events with millisecond accuracy. Algorithms utilized in a new Time Audit mechanism, added to the Micro Experimental Laboratory, are described. This new mechanism involves the recording and time stamping of all input and output events with 0.1-msec accuracy. This allows the experimenter to determine the initiation, duration, and termination of each event and also makes it possible to relate these events to the synchronization of the screen refresh cycle. A customized user interface provides a time log and event-tracing feature that enables nonprogrammers to determine the duration of command execution to the .1-msec level, allowing rapid, precise assessment of program execution. The resulting time log provides a detailed specification of the experimental events for debugging and a permanent record of the experimental procedure.     

Mental image reversal and verbal recoding: When ducks become rabbits

A recent debate has concerned whether classical bistable configurations (e.g., duck/rabbit) can be reinterpreted using mental imagery. Research in this field indicates that image reversal is possible only when subjects change their specification of orientation. In a series of four experiments, we demonstrate that mental reversal of classical bistable configurations( CBCs) is impeded by verbally recoding the visual pattern at the time of input. When subjects were prevented from verbally recoding visual stimuli in short-term memory, they fared systematically better in mentally reversing the CBC, even when they received no instructions to change their reference frame or specification of orientation. On this basis, we suggest a model of image reversal that takes into account the interaction between memory codes and provides a new perspective on verbal recoding, verbal overshadowing, and mental discoveries.     

When men become “women”: Gender antagonism and the changing sexual geography of work in Newfoundland

In the traditional Newfoundland maritime division of labor, men worked at sea on boats and women worked on the land in their households. Patterns of gender identity, work, and gender relations were characterized by an ethos of complementarity. Present declines in the fishery make it impossible to earn a living at sea and men have become landbound. The resulting infringement by unemployed men into the spaces and prerogatives traditionally allotted to women has come to generate a gender antagonism that permeates, if not dominates, contemporary gender relations in a southwest coast Newfoundland fishing community. Ethnographic analysis incorporates data collected during two periods of anthropological fieldwork: 1977–1978 and 1989–1990. Comparative assessment of economic, psychological, and cultural constructionist theories of gender relations inform the qualitative analysis of ethnographic data.The original period (1977–1978) of anthropological fieldwork was funded by a grant from the United States National Institute of Child and Maternal Health, which was administered through the Population Center at the University of North Carolina, Chapel Hill. The second period (1989–1990) of fieldwork was funded by grants from Memorial University of Newfoundland's Institute of Social and Economic Research, the Canadian Embassy's Canadian Studies Program, and the University of South Dakota's General Research Fund.