Startle modulation during violent films: Association with callous–unemotional traits and aggressive behavior

The current study examined the unique and interactive associations of callous–unemotional (CU) traits, impulsive and premeditated aggression with startle modulation to violent films. Eighty-five participants (Mage = 20.52) at differential risk of CU traits, selected from a sample of 1105 young adults, participated in the physiological experiment. Startle eye-blink responses to acoustic probes were recorded during violent, comedy and neutral films. Self-report ratings of valence and arousal were also collected. Findings from regression analysis documented that CU traits were associated with diminished startle potentiation to violent films, whereas impulsive aggression was associated with increases in startle potentiation. Further, the negative association between CU traits with startle potentiation, valence, and arousal ratings to violent films was moderated by impulsive aggression. At the group level, individuals high on impulsive aggression without CU traits were the ones showing the highest levels of startle potentiation to violent films, and scored on the opposite extreme compared to individuals high on both CU traits and impulsive aggression.     

The Disruptive Adolescent as a Grown-Up: Predicting Adult Startle Responses to Violent and Erotic Films from Adolescent Conduct Problems and Callous-Unemotional Traits

The current study aimed to identify heterogeneous groups of adolescents differing on their levels of conduct problems (CP) and callous-unemotional (CU) traits, and compare them on startle reactivity to emotional videos (violent/erotic) during young adulthood. A Latent Profile Analysis, conducted among a longitudinal sample of 2306 adolescents, provided evidence for the existence of heterogeneous CP and CU subgroups (i.e., CP-only, CU-only, and CP+CU groups). Three years later, 82 young adults (Mage?=?19.95), randomly selected from the identified groups, participated in an experiment assessing their startle eye-blink responses during violent, erotic and neutral video scenes. Self-report ratings of fear, valence and arousal to affective scenes were also collected. Findings suggested that adolescents high on CP and low on CU traits showed high startle potentiation when viewing violent scenes during young adulthood, while those high on both CP and CU traits showed diminished startle reactivity to violent stimuli. Individuals high on CU traits without CP showed similar startle reactivity to controls. Further, the findings indicate that startle potentiation to violent stimuli can be a reliable physiological marker to distinguish antisocial individuals with and without CU traits. The finding that the CU only group was not differentiated from the control group on startle reactivity when viewing violent stimuli might explain their lower likelihood of engaging in antisocial behavior.     

Uncovering the Value and Meaning of a Horticulture Therapy Program for Clients at a Long-Term Adult Inpatient Psychiatric Facility

This qualitative study investigated the value and meaning of the Greenhouse Program and its impact on recovery goals of residents with severe and persistent mental illness at an adult, long-term psychiatric facility. Eight participants and two occupational therapists were interviewed. Findings revealed two main themes, relating to the essence of the program and personal growth of the participants, supplemented by six sub-themes. The findings suggest that initiatives, such as the Greenhouse Program, are an appropriate intervention that occupational therapy professionals can use in adult inpatient psychiatric facilities.     

Chronic administration of an angiotensin II receptor antagonist resets the hypothalamic-pituitary-adrenal (HPA) axis and improves the affect of patients with diabetes mellitus type 2: preliminary results

Diabetes mellitus type 2 (DM type 2) is associated with depressive symptomatology and intermittent hyperfunction of the hypothalamic-pituitary-adrenal (HPA) axis. DM type 2 is also accompanied by increased tissue levels of angiotensin II (Ang II), which stimulates the HPA axis through the Ang II type 1 receptors (AT1). We investigated the effect of candesartan, an angiotensin receptor blocker (ARB) that crosses the blood brain barrier, on the activity of the HPA axis and on the affect of 17 patients with DM type 2, aged 40-65 years, who were treated with 4 mg/day candesartan per os for at least 3 months. Before and after candesartan administration, a corticotropin-releasing hormone (CRH) stimulation test and psychological tests were performed. In response to hCRH, time-integrated secretion of ACTH was not altered by candesartan administration, however, the cortisol response was decreased significantly compared to baseline (mean +/- SEM, 2327 +/- 148.3 vs. 1943 +/- 131.9 microg/dl, P = 0.005) suggesting reduced sensitivity of the adrenals to ACTH. In parallel, there was a significant improvement in interpersonal sensitivity (0.91 +/- 0.16 vs. 0.70 +/- 0.15, P = 0.027) and depression scores (0.96 +/- 0.15 vs. 0.71 +/- 0.10, P = 0.026). We suggest that candesartan resets the HPA axis of patients with DM type 2 and improves their affect.     

Effects of response‐contingent stimulus pairing on vocalizations of nonverbal children with autism

Research on stimulus–stimulus pairing to induce novel vocalizations in nonverbal children has typically employed response‐independent pairing (RIP) procedures to condition speech sounds as reinforcers. The purpose of the present study was to evaluate the effects of a response‐contingent pairing (RCP) procedure on the vocalizations of three nonverbal boys diagnosed with autism spectrum disorder. During RCP, adult‐delivered sounds that were either paired with a preferred item (target sounds) or not (nontarget sounds) were presented contingent on a button‐press response. In Experiment 1, RCP was compared with an RIP procedure, in which the timing of sound presentations was yoked to the preceding RCP session. RCP produced a greater effect on all participants' target vocalizations than RIP. Experiment 2 demonstrated the effects of differential reinforcement of the vocalizations induced in Experiment 1. The results suggest that RCP may develop vocalizations more reliably than RIP procedures.     

Early Detection of Memory Impairment in Alzheimer’s Disease: A Neurocognitive Perspective on Assessment

We propose that the earliest neuropsychological detection of Alzheimer’s disease (AD) can be informed by current views about the neuropathogenesis of AD and cognitive models of memory and its neurobiological substrates. The primary impairment in early AD is encoding/consolidation, resulting from medial temporal lobe (MTL) pathology. On theoretical and empirical grounds, paired associate learning (PAL) appears to be the ideal paradigm for detecting MTL dysfunction in early AD. It has not been embraced as a test of choice, however, and this critical review discusses why the paradigm may have not fulfilled its potential. We suggest that a new PAL variant, ‘associate-recognition’, may prove to be clinically efficacious.     

Why do child sexual abuse victims not tell anyone about their abuse? An exploration of factors that prevent and promote disclosure

Disclosure rates of child sexual abuse (CSA) to both social supports and law enforcement are concerningly low, although more research is needed to understand factors that impact disclosure. Thus, the present study examined rates of informal (i.e., to a social support) and formal (i.e., to law enforcement) disclosure of CSA, as well as victims' self-reported experiences with telling others about their own abuse and their perceptions of the overall advantages and disadvantages of disclosure. In all, 76 undergraduate women (who collectively experienced 105 instances of abuse) participated in a semi-structured interview regarding their history of CSA. Results revealed that approximately 50% of cases involved the victim informally disclosing, and only 10% of cases being formally disclosed to authorities. The quantitative and qualitative data shed light on a number of factors that lead victims to not disclose, as well as the identification of factors that may promote a victim to share their abuse with others. The implications for improved prevention and responses to CSA disclosure are discussed.     

Can Research on Women Be More Effective in Shaping Policy?

The potential usefulness of research on women's issues to the policymaking process is discussed in the context of the arguments both for and against trying to increase the policy utility of social science research in general. J. Weiss's concepts of „intrinsic,”„intellectual,” and „political usefulness” are presented and applied to specific policy issues of importance to women. The paper examines ways in which researchers could enhance the policy relevance of their research and ways in which the psychology establishment could encourage the development of policy-relevant research. The middle section of the paper describes the large array of roles and settings for social scientists in the federal policy structure, treating the executive, legislative, and judicial branches in turn. The history of and dilemmas created by the „Brandeis brief” are presented. The last section of the paper presents some important policy issues affecting women in the next five years and illustrates how one particular area of research could be made more useful.