The convergence of behavioral biology and operant psychology: Toward an interlevel and interfield science

Behavioral biology and operant psychology have developed in parallel but separate paths since their origins in the 1930s. In the first three decades, both fields dealt with microscopic (or molecular) controlling variables and qualitative data. Since about 1960, both have primarily focused on macroscopic (or molar) controlling variables. Their shared interest in foraging in the 1980s suggests a limited convergence beween biologists and psychologists in data, methods, and theories. We draw on accounts of intertheoretic relations from the philosophy of science, including both interlevel theory and interfield theory, to understand this convergence. However, our greater emphasis on methods of data collection and analysis leads us to characterize the convergence as not only one of interfield theory but one of interfield science.     

Heart rate during group flooding therapy for PTSD

The objective of this study was to assess, via heart rate, the arousal levels of participants in group trauma reexposure therapy for posttraumatic stress disorder, and so to better understand this common mode of treatment, particularly in regards to its presumed curative factor, extinction. Six Vietnam combat-related PTSD inpatients participated twice weekly in group trauma reexposure therapy during which their electrocardiograms were recorded. Heart rate was quantified continuously off-line. Heart rates of participantsnot directly engaged in imaginal reexposure to their personal combat traumas consistently exhibited mild linear declines from the beginnings to the ends of the approximately 2.5 hour sessions. Participants actively engaged in personal combat trauma reexposure exhibited higher whole-session heart rates. Most also exhibited more specific elevation extending over the later portions of therapy sessions during which intensive reexposure usually occurred. Surprisingly, no patients exhibitedfocal increases in heart rate concurrent with periods of most intensive traumatic incident review as judged from videotape. Administering imaginal reexposure in a group context does not preclude substantial physiological (sympathetic) arousal, as is preconditional for extinction. Under conditions in which the actively engaged reexposure patient is reliably identified, group trauma reexposure therapy may not provide an opportunity for “vicarious” flooding in nonengaged participants.     

Loneliness, coping strategies and cognitive styles of the gifted rural adolescent

Loneliness, coping, and cognitive styles of 52 gifted adolescents from rural Nebraska were investigated via Woodward Loneliness and Kalyan-Masih Coping Inventories and Witkin's Group Embedded Figures Test. Fifty-one percent of the adolescents had a mean loneliness score above 2.60, which is the third highest among the 16 Nebraska groups studied. They were most lonely when rejected, alienated, isolated, and not in control of a situation. Most frequently, their coping strategies were: engaging in individual pursuits, extending social contacts, using cognitive reframing, and keeping busy. Less frequently, their strategies were: engaging in religious activities, seeking adult help, and using negative escape routes. The gifted adolescents were divided into field independent (FI) and field dependent (FD) according to their cognitive style. Some differences were noted. The FI adolescents were more lonely in a crowd, but the FD adolescents were more lonely when not with others. The FI adolescents engaged in individual pursuits and cognitive reframing, and the FD adolescents resorted to religious and physical activities or professional help as coping strategies. The FI adolescents showed more autonomy and self-reliance, while the FD adolescents relied more on external sources of support when coping with loneliness. Implications for counseling in home and school are discussed.     

Visual attention modulates signal detectability

The mechanism by which visual-spatial attention affects the detection of faint signals has been the subject of considerable debate. It is well known that spatial cuing speeds signal detection. This may imply that attentional cuing modulates the processing of sensory information during detection or, alternatively, that cuing acts to create decision bias favoring input at the cued location. These possibilities were evaluated in 3 spatial cuing experiments. Peripheral cues were used in Experiment 1 and central cues were used in Experiments 2 and 3. Cuing similarly enhanced measured sensitivity, P(A) and d', for simple luminance detection in all 3 experiments. Under some conditions it also induced shifts in decision criteria (beta). These findings indicate that visual-spatial attention facilitates the processing of sensory input during detection either by increasing sensory gain for inputs at cued locations or by prioritizing the processing of cued inputs.     

Videotaped simulated families as a tool in family therapy outcome research

Twenty-two therapists who had treated 57 families in brief conjoint family therapy under supervision responded to a videotaped simulated family as if they were treating it. Their responses were audiotaped and coded on a system devised for this study. Positive relationships were found between the ratings of expertise based on the coding system, and independent ratings of the treated families' satisfaction with treatment and the status of the presenting symptoms 6 months after termination. Videotaped simulated families are potentially useful as standardizable methods of revealing individual differences in therapists for family therapy outcome research.