Stuck in a rut: perseverative response tendencies and the neuroticism-distress relationship

Clinical views of neuroticism-linked distress often make reference to the perseverative sorts of mental processes that reinforce such experiences. The goal of the present 7 studies, involving 488 undergraduate participants, was to directly examine such perseverative processes. Individual differences in response perseveration were operationalized in terms of choice reaction time difficulties switching (vs. repeating) responses across consecutive trials. Response perseveration interacted with neuroticism in predicting negative emotion, dissatisfaction with life, and displays of negative emotion (Studies 1-4). Specifically, neuroticism-outcome relations were quite a bit stronger at high levels of perseveration. Additional studies (Studies 5-7) provided support for the convergent and discriminant validity of response perseveration. Overall, the results highlight the manner in which response perseveration reinforces experiences of negative emotion.     

Turning the other cheek. Agreeableness and the regulation of aggression-related primes

Aggression-related cues (e.g., violent media) can prime both hostile thoughts and the tendency to commit aggression. However, not everyone engages in an aggressive act after being exposed to an aggression-related cue. Some thought pattern, perhaps an automatic one, may prevent the cue-aggression sequence in some individuals. These considerations motivated the present research, which examined the potential for agreeableness to moderate the effect of aggression-related cues on behavior and cognition. In Study 1, we found that priming with aggression-related cues increased aggressive behavior, but only among individuals low in agreeableness. Study 2 showed that aggression-related cues activated prosocial thoughts among individuals high in agreeable affect (a component of agreeableness). These results reveal that agreeable individuals are able to short-circuit the cue-aggression sequence, likely by recruiting prosocial thoughts in response to aggression-related primes.     

The rise and decline of prospective memory performance across the lifespan

In the present study, the trajectory of prospective memory across the lifespan was investigated in a total of 200 participants from five age groups (4- to 6-year-old children, 13- to 14-year-old adolescents, 19- to 26-year-old adults, 55- to 65-year-old adults, and 65- to 75-year-old adults). In an event-based prospective memory task the prospective and the retrospective components were assessed separately. For the prospective component, the results showed better performance for adolescents and young adults than for children and 65- to 75-year-old adults. In addition, participants belonging to the latter group were more likely to forget the retrospective component after having noticed the prospective memory targets. Overall, these results indicate that across the lifespan prospective memory performance follows a similar inverted u-shape function as is well known for retrospective episodic memory.     

Activation of the cannabinoid receptor type 1 decreases glutamatergic and GABAergic synaptic transmission in the lateral amygdala of the mouse

The endogenous cannabinoid system has been shown recently to play a crucial role in the extinction of aversive memories. As the amygdala is presumably involved in this process, we investigated the effects of the cannabinoid receptor agonist WIN 55,212-2 (WIN-2) on synaptic transmission in the lateral amygdala (LA) of wild-type and cannabinoid receptor type 1 (CB1)-deficient mice. Extracellular field potential recordings and patch-clamp experiments were performed in an in vitro slice preparation. We found that WIN-2 reduces basal synaptic transmission and pharmacologically isolated AMPA receptor- and GABA_A receptor-mediated postsynaptic currents in wild-type, but not in CB1-deficient mice. These results indicate that, in the LA, cannabinoids modulate both excitatory and inhibitory synaptic transmission via CB1. WIN-2-induced changes of paired-pulse ratio and of spontaneous and miniature postsynaptic currents suggest a presynaptic site of action. Inhibition of G_i/o proteins and blockade of voltage-dependent and G protein-gated inwardly rectifying K⁺ channels inhibited WIN-2 action on basal synaptic transmission. In contrast, modulation of the adenylyl cyclase-protein kinase A pathway, and blockade of presynaptic N- and P/Q- or of postsynaptic L- and R/T-type voltage-gated Ca²⁺ channels did not affect WIN-2 effects. Our results indicate that the mechanisms underlying cannabinoid action in the LA partly resemble those observed in the nucleus accumbens and differ from those described for the hippocampus.     

Bivalency is costly: bivalent stimuli elicit cautious responding

When performing tasks in alternation, substantial slowing occurs when the stimuli have features relevant to both tasks (i.e., when stimuli are bivalent as opposed to univalent). One possible source of this slowing, herein called a bivalency cost, is that encountering bivalent stimuli leads to a more cautious response style. To investigate this, we employed a paradigm that required performing three simple tasks, with bivalent stimuli occasionally encountered on one task. The results show that regardless of the feature overlap among the stimuli used for the different tasks, the introduction of bivalent stimuli slowed responding on all tasks and it was accompanied by a decrease in response errors. Overall, it appears that bivalent stimuli recruit a more cautious approach to task-switching performance.     

Increasing designated driving with a program of prompts and incentives

Designated driving (DD) is a potentially viable but underutilized component of efforts to reduce driving while intoxicated. A reversal design was used to evaluate the effects of prompts and incentives in a bar on the frequency of DD. The results showed an approximate doubling of the number of designated drivers during the two intervention periods.     

Mood, self-esteem, and simulated alternatives: thought-provoking affective influences on counterfactual direction

Four studies indicated that moods and self-esteem can influence counterfactual thoughts. This was shown for counterfactuals generated for hypothetical situations (Study 1), for recalled life events (Study 2), and for agreement with counterfactual statements after laboratory tasks (Studies 3 and 4). High self-esteem (HSE) and low self-esteem (LSE) persons generated (Studies 1 and 2) or agreed to (Studies 3 and 4) more downward (worse than actuality) than upward (better than actuality) counterfactuals when in good moods, but they diverged in reactions to bad moods: HSE persons thought more about downward counterfactuals, whereas LSE persons thought more about upward counterfactuals. HSE persons felt better after generating downward counterfactuals (Study 2) and took longer to agree to analogous statements (Studies 3 and 4) in bad moods, suggesting attempts at mood repair.     

Utility of computerized case simulations in therapist training and evaluation

The present quasi-experimental study attempted to evaluate the utility of a set of three computer simulations for therapist training and evaluation by comparing psychology students from two universities at three training levels. The three groups consisted of junior and senior level undergraduates, first year graduate students, and third or fourth year graduate students. Analysis of outcome measures indicated subjects were generally accepting of computer simulation use for therapist training and evaluation and performance differences between the groups could be explained by group population differences. The results are discussed relative to the utility for computer simulations use for therapist training and evaluation.     

The changing image of Catholic women

The characteristics of Roman Catholic women in today's society were investigated. Subjects were 154 Catholic women, both religious and lay, who participated on a volunteer basis. The Catholic lay women (111) were divided into two groups: those who attended a Catholic elementary school (63) and those who attended a non-Catholic elementary school (48). Catholic women religious were found to be more dominant and independent minded than in previous research. All of the women studied were found to be more aggressive and more critical of authority than in previous studies. Likewise, Catholic women no longer see themselves in the role of nurturers.     

The Effects of Minimal and Maximal Peer Tutoring Systems on the Academic Performance of College Students

The effects of two levels of peer tutoring on the academic performance of 193 college students enrolled in two sections of introductory psychology were investigated. In Section 1,10 groups of 3 men and 3 women randomly assigned to 10 undergraduate peer tutors participated in Experimental Condition 1 (E-1). In Section 2, two groups of 20 and 21 students randomly assigned to two undergraduate peer tutors participated in Experimental Condition 2 (E-2). Students not participating in an experimental condition comprised the control groups for each section (C-1 and C-2). The treatment analysis of E1 vs. C-1 and E-2 vs. C-2 revealed significant differences where E-1 and E-2 were clearly superior in academic performance. These data demonstrate that undergraduate peer tutors can enhance the academic performance of college students. Positive ratings by the participating students and peer tutors provide further evidence of the positive program effects.