Using magnitude estimation to investigate the perceptual components of signal detection theory

Several experiments suggest that the relation between detection, signal energy, and perceived tone intensity is very different from the relation between detection, signal energy, and perceived tone duration. We propose a new task, the magnitude estimation and detection (MED) task, that allows one to assess the relation between the psychological dimensions of a stimulus and detection. In Experiment 1, we used the MED task to assess the relation between perceived tone intensity and detection in a yes/no task. The data show a strong relation between the two. In Experiment 2, we used the MED task to assess the relation between perceived tone duration and detection in a yes/no task. The data show a relatively weak relation between the two. Our data suggest that tone intensity is a less perceptually noisy dimension than tone duration. We present the advantages and disadvantages of the MED task with the hope that this task can aid researchers in better understanding the perceptual and decisional mechanisms underlying various cognitive processes.     

The effects of collaboration and punishment on prospective memory performance in a group setting

Remembering to perform a delayed intention is termed prospective memory (PM). Often delayed intentions are shared by more than one person; however, there is a dearth of studies examining PM in social settings. We aimed to investigate whether the potential consequences of one's behavior across diverse group settings influence PM performance in event‐ and time‐based tasks. A total of 207 participants were randomly allocated to either an individual, collaborative, or collaborative plus penalty motivation condition and were tested in a 2‐ or 3‐person setting. For the time‐based PM task, participants responded less timely in the individual motivation condition, whereas there was no difference between the collaborative motivation conditions. No significant effects were found for motivation condition on the event‐based task or for group size on PM performance. Analyses of ongoing task performance revealed that participants' attention allocation policies change depending on how individuals prioritize the ongoing and PM tasks.     

Affirmative Dialectical Behavior Therapy Skills Training With Sexual Minority Veterans

Minority stress theory posits that unique stressors create an invalidating environment, which places sexual minority individuals at increased risk for psychiatric morbidity. Sexual minority veterans’ experience of minority stressors results in elevated levels of emotion dysregulation, anxiety, depression, and suicidality. Clinical interventions designed to address minority stress and treat emotional dysregulation and related disorders among sexual minority veterans are warranted. Professional guidelines recommend the adaptation of evidence-based treatments to address the unique features of sexual minority and veteran mental health. Dialectical Behavior Therapy (DBT) is a treatment for emotion dysregulation and related problems that addresses an invalidating environment, which is an appropriate framework for sexual minorities. The current research adapts the Emotion Regulation module of DBT Skills Training. This adaptation highlights minority stress as part of the invalidating environment and adds new teaching points to address the unique features of sexual minority mental health to create Affirmative DBT Skills Training. Six sexual minority veterans completed Affirmative DBT Skills Training meeting on a weekly basis for 10 consecutive weeks. Before and after treatment, participants completed measures of emotion regulation, anxiety, and depression as well as assessments of minority stress processes. Affirmative DBT Skills Training was well received in this sample. Results suggest that the intervention was effective in decreasing emotion dysregulation and symptoms of depression. These findings suggest Affirmative DBT Skills Training is a promising treatment, although more research is warranted, particularly given the small sample size and lack of a control group.     

Daylight savings: what an answer to the perceptual variation problem cannot be

Philosophical Studies - Significant variations in the way objects appear across different viewing conditions pose a challenge to the view that they have some true, determinate color. This view...     

Wearable Activity Technology And Action-Planning (WATAAP) to promote physical activity in cancer survivors: Randomised controlled trial protocol

Background/Objective: Colorectal and gynecologic cancer survivors are at cardiovascular risk due to comorbidities and sedentary behaviour, warranting a feasible intervention to increase physical activity. The Health Action Process Approach (HAPA) is a promising theoretical framework for health behaviour change, and wearable physical activity trackers offer a novel means of self-monitoring physical activity for cancer survivors. Method: Sixty-eight survivors of colorectal and gynecologic cancer will be randomised into 12-week intervention and control groups. Intervention group participants will receive: a Fitbit Alta? to monitor physical activity, HAPA-based group sessions, booklet, and support phone-call. Participants in the control group will only receive the HAPA-based booklet. Physical activity (using accelerometers), blood pressure, BMI, and HAPA constructs will be assessed at baseline, 12-weeks (post-intervention) and 24-weeks (follow-up). Data analysis will use the Group x Time interaction from a General Linear Mixed Model analysis. Conclusions: Physical activity interventions that are acceptable and have robust theoretical underpinnings show promise for improving the health of cancer survivors.     

How Might the Genetics Profession Better Utilize Social Media

Social media is a common method of communication in people’s personal lives and professional settings. Gallagher et al. (2016) recommended, “it is time for genetic counselors to embrace social media as a means of communicating with patients or other healthcare professionals.” Full members of the National Society of Genetic Counselors (NSGC) in the USA and Canada and genetics patients in Cleveland, OH, were surveyed to determine interest in using social media for patient-provider interactions. Both cohorts indicated that patient privacy and confidentiality would be a concern; however, survey results indicated patients would be interested in using social media to receive general information about genetic counseling and to learn about genetics services. Genetic counselors indicated privacy issues were not concerning if social media were to be used in this capacity. The majority of genetic counselor participants (88.7%) indicated they would welcome national guidelines for patient-provider social media use. Data from this study demonstrated that sharing what to expect at a genetic counseling appointment, defining genetic counseling, and announcing community outreach events are possible ways genetic counselors could utilize social media to communicate with and educate patients.     

La compréhension d’un scénario médical à partir d’images sans texte : l’apport des représentations sociales

In this study, participants (n = 125) were shown a sequence of four images illustrating the medication scenario. Depending on the results of a pre-test (n = 384), the sequence is composed of typical images, non-typical images or mixed. Depending on the case, the instructions given to the participants are neutral, or it induces the representation of the drug. Participants must identify the scenario described in the sequence of images proposed to them. The sequence of typical images gives rise to the better identification. The mixed sequence gives rise to comparable scores following non-typical images when the instruction is neutral and to comparable scores following typical images when the instruction induces the representation of the drug.