Instructions, multiple schedules, and extinction: Distinguishing rule-governed from schedule-controlled behavior

Schedule sensitivity has usually been examined either through a multiple schedule or through changes in schedules after steady-state responding has been established. This study compared the effects of these two procedures when various instructions were given. Fifty-five college students responded in two 32-min sessions under a multiple fixed-ratio 18/differential-reinforcement-of-low-rate 6-s schedule, followed by one session of extinction. Some subjects received no instructions regarding the appropriate rates of responding, whereas others received instructions to respond slowly, rapidly, or both. Relative to the schedule in operation, the instructions were minimal, partially inaccurate, or accurate. When there was little schedule sensitivity in the multiple schedule, there was little in extinction. When apparently schedule-sensitive responding occurred in the multiple schedule, however, sensitivity in extinction occurred only if differential responding in the multiple schedule could not be due to rules supplied by the experimenter. This evidence shows that rule-governed behavior that occurs in the form of schedule-sensitive behavior may not in fact become schedule-sensitive even though it makes contact with the scheduled reinforcers.     

Interference produced by emotional conflict associated with anterior cingulate activation

The anterior cingulate cortex (ACC) is involved in cognition and emotion. In the classic Stroop task, presentation of stimuli that are in response conflict with one another produces activation in the caudal ACC. In the emotional Stroop task, presentation of emotionally salient stimuli produces activation in the rostral ACC. Presentation of stimuli that are emotionally conflicting should activate the caudal ACC; stimuli that are emotionally salient should activate the rostral ACC. We tested this prediction using functional magnetic resonance imaging while subjects made emotional valence judgments of words overlaid on emotional faces (word-face Stroop task). Emotionally incongruent pairs were responded to more slowly than emotionally congruent pairs. Emotionally incongruent trials were associated with increased activation within the caudal ACC, whereas no ACC activation was found in response to emotional saliency. These results support the conflict-monitoring model of caudal ACC and extend this function to conflict within the domain of emotional stimuli.     

Acoustically evoked brain stem potentials in acute alcoholic intoxication

Under the acute influence of alcohol with blood alcohol concentrations (BAK) ranging between 0.62 to 2.04%, the IPL prolongations of our subjects were within standard deviations compared with normal data. Depending on the BAK, these minor IPL alterations hint at a special vulnerability in the pontomesodiencephal area. The increase in BAK significantly correlates with the reduction of body temperature. The BAEP proves to be suitable for defining undear states of coma different origin.     

Collective AIDS activism and individuals' perceived self‐advocacy in physician‐patient communication

In a study of AIDS activism and communication patterns between people with HIV or AIDS and health care personnel, parallel persuasive processes are described between social or political activism and personal self‐advocacy. The analysis of public and private discourse leads to 3 interrelated conclusions about AIDS activist behaviours at the collective and individual levels: (a) greater patient education about the illness and treatment options is encouraged, (b) a more assertive stance toward health care is promoted, and mindful nonadherence is considered. Activists perceived that their self‐advocacy behaviors, in turn, impact the physician‐patient interaction. In communicative interactions, education allows patients to challenge the expertise of the physician, assertiveness allows them to confront paternalistic or authoritarian interactional styles, and mindful nonadherence allows them to reject treatment recommendations and offer reasons for doing so. Participants reported that physicians had mixed reactions to their self‐advocacy attempts.     

Interdisciplinary research and interprofessional collaborative care in a memory clinic for rural and northern residents of western Canada: Unique training ground for clinical psychology graduate students

Abstract: In Canada, interprofessional education (IPE) and interdisciplinary health research initiatives are beginning to transform the academic health sciences, including graduate training programs for clinical psychologists. In response to mandates and directives from national health policy and research funding bodies, academic training programs are re‐structuring course offerings, practicum training experiences, and research activities to better prepare students for their future roles within interdisciplinary research groups and collaborative patient‐centred clinical teams. As an example of this transformative movement in IPE, described herein are the recent training initiatives in the Graduate Program in Clinical Psychology at the University of Saskatchewan, and the role of clinical neuropsychology in an innovative interprofessional rural and remote memory clinic.     

Gender Role Self-Concept and Gender-Typed Communication Behavior in Mixed-Sex and Same-Sex Dyads

The focus of this study was the relation between both gender role self-concept and gender role attitudes with gender-related behavior of interacting partners. We observed gender-typed communication behaviors of mixed-sex and same-sex dyads and measured gender role self-concept and gender role attitudes. Thirty mixed-sex dyads, 19 women dyads, and 15 men dyads participated in a behavior observation study. The results revealed that the activation of gender role self-concept varies depending on the gender of the interacting people. Furthermore, we found that context and gender of the interacting persons moderated the relation between self-concept and behavior. Participants' gender role attitudes did not correlate with their own behaviors but did with their partners' behaviors.     

Zooming into daily life: within-person associations between physical activity and affect in young adults

Objective: Negative affect in daily life is linked to poorer mental and physical health. Activity could serve as an effective, low-cost intervention to improve affect. However, few prior studies have assessed physical activity and affect in everyday life, limiting the ecological validity of prior findings. This study investigates whether daily activity is associated with negative and positive evening affect in young adults.

Design: Young adults (N = 189, Mdn = 23.00) participated in an intensive longitudinal study over 10 consecutive days.

Main Outcome Measures: Participants wore accelerometers to objectively assess moderate-to-vigorous physical activity continuously throughout the day and reported their affect in time-stamped online evening diaries before going to sleep.

Results: On days when participants engaged in more activity than usual, they reported not only less depressed and angry evening affect but also more vigour and serenity in the evening.

Conclusion: Young adults showed both less negative and more positive affect on days with more activity. Physical activity is a promising health promotion strategy for physical and mental well-being.