Psychophysical methodology IV: Phi gamma hypothesis and the method of limits

Assuming the phi-gamma hypothesis, deductions concerning the method of limits (ML) are derived. For a given step size, the selection of the initial stimulus for ascending series or for descending series has little effect on the summary statistical measures of the ML. Estimates of ML statistics are derived for different step sizes, and these estimates are used to estimate the mean and standard deviation of the phi-gamma hypothesis. Also considered are how summary statistical measures of the ML are influenced by extremely large and small step sizes and by the definition of a ML threshold.     

Assertiveness, social support, and psychological adjustment following spinal cord injury.

Tested predictions that assertiveness and social support would be significantly predictive of psychological adjustment. Furthermore, it was anticipated that assertiveness and certain types of social relationships would differentially interact to predict adjustment, since positive and negative effects of both variables have been noted in prior research. Trained raters interviewed 156 persons receiving either in-patient or out-patient care for cord injuries and administered measures of assertiveness, social support, depression and psychosocial impairment. Persons who reported a keen sense of responsibility for the welfare of another reported more depression and impairment. Persons reporting higher levels of support facilitating social integration and reassuring personal worth were less depressed. Several significant interactions between assertiveness and different social support relationships revealed beneficial and deleterious effects on depressive behavior and impairment secondary to the disability. Results are discussed as they advance theoretical understanding of the effects of assertiveness and social support. Implications for discriminate cue learning in assertion training for persons with physical disability are proposed.     

Interpersonal Reactions to Depression and Physical Disablllty In Dyadic Interactions1

Examined the interpersonal responses of persons engaged in dyadic interactions with confederates who enacted either depressed or socially appropriate roles and appeared either with or without a physical disability. Subject negative evaluations of confederates were indirectly obtained from a thought-listing measure. The overt behaviors of subjects were surreptitiously recorded on videotape and measures of verbal and nonverbal behavior were acquired. Subjects spoke less to the depressed targets and had significantly higher rates of negative evaluations of these persons. In addition, subjects gazed less at the depressed confederates. These effects were not moderated by target physical appearance. Findings are discussed as they relate to social models of depression and the stigmatizing effects of disability.     

Integrated Treatment Programmes for Mothers with Substance Use Problems: A Systematic Review and Meta-analysis of Interventions to Prevent Out-of-home Child Placements

Approximately half of mothers receiving substance use treatment are involved with childcare proceedings. This review aims to determine whether integrated treatment programmes for mothers with substance use problems are effective in preventing out-of-home placement (temporally/permanent) and influencing other maternal factors such as patterns of substance use, treatment completion and parenting behaviours. Six trials were identified—two randomised controlled trials and four non-randomised controlled studies. The pooled sample of participants was 1717. The results showed that mothers who participated in integrated treatment programmes were significantly less likely to have the children removed from their care (Odds Ratio (OR)?=?0.40, 95% CI?=?0.27, 0.61), more likely to complete substance use treatment (OR?=?3.01, 95% CI?=?1.79, 5.06), and more likely to reduce their alcohol consumption (Standardised Mean Difference (SMD)?=??0.40, 95% Cl?=??0.78, ?0.01) and drug use (SMD?=??0.30, 95% CI?=??0.53, ?0.07). However, non-significant reductions were observed for parent–child conflict (SMD?=??0.35, 95% CI?=??0.72, 0.03) and child abuse risk (SMD?=??0.03, 95% CI?=??0.36, 0.31). While the findings from this review suggest that mothers involved in integrated treatment programmes could potentially be less likely to experience out-of-home child placements and more likely to improve substance use treatment outcomes, little evidence exists for the effectiveness of these interventions. Further research, particularly high-quality RCTs, is required to demonstrate and persuade health and public policy on the far-reaching value of the integrated approaches.

     

Clinical Implications for Multi-Racial Individuals

Abstract

Multi- racial individuals experience distinctive struggles and challenges that can impact their mental health. However, despite the growing population and unique presenting issues there remains a scarcity of literature to effectively support them. In addition, there is a lack of research exploring the unique experience of the multiple heritage population. The article offers implications for effectively working with individuals of multi-racial decent as well as a call to action for MFTs to develop multicultural competencies for the profession.     

Sketching while narrating as a tool to detect deceit

In none of the deception studies that used drawings to date, was the effect of sketching on both speech content and drawing content examined, making it unclear what the full potential is of the use of drawings as a lie detection tool. A total of 122 truth tellers and liars took part in the study who did or did not sketch while narrating their allegedly experienced event. We formulated hypotheses about the total amount of information and number of complications reported and about various features of the drawings. Participants in the Sketch-present condition provided more information than participants in the Sketch-absent condition, and truth tellers reported more details than liars, but only in the Sketch-present condition. In contrast to previous research, no Veracity differences occurred regarding the content of the drawings, perhaps because sketching was introduced as a tool that facilitated verbal recall and not as a stand-alone tool.     

Face detection in 2‐ to 6‐month‐old infants is influenced by gaze direction and species

Humans detect faces efficiently from a young age. Face detection is critical for infants to identify and learn from relevant social stimuli in their environments. Faces with eye contact are an especially salient stimulus, and attention to the eyes in infancy is linked to the emergence of later sociality. Despite the importance of both of these early social skills—attending to faces and attending to the eyes—surprisingly little is known about how they interact. We used eye tracking to explore whether eye contact influences infants' face detection. Longitudinally, we examined 2‐, 4‐, and 6‐month‐olds' (N = 65) visual scanning of complex image arrays with human and animal faces varying in eye contact and head orientation. Across all ages, infants displayed superior detection of faces with eye contact; however, this effect varied as a function of species and head orientation. Infants were more attentive to human than animal faces and were more sensitive to eye and head orientation for human faces compared to animal faces. Unexpectedly, human faces with both averted heads and eyes received the most attention. This pattern may reflect the early emergence of gaze following—the ability to look where another individual looks—which begins to develop around this age. Infants may be especially interested in averted gaze faces, providing early scaffolding for joint attention. This study represents the first investigation to document infants' attention patterns to faces systematically varying in their attentional states. Together, these findings suggest that infants develop early, specialized functional conspecific face detection.