scholarly journals Using an ideal observer analysis to investigate the visual perceptual efficiency of individuals with a history of non-suicidal self-injury when identifying emotional expressions

PLoS ONE ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. e0227019
Author(s):  
Laura Ziebell ◽  
Charles Collin ◽  
Stéphane Rainville ◽  
Monica Mazalu ◽  
Madyson Weippert
Keyword(s):  
Ideal Observer ◽  
Emotional Expressions ◽  
Self Injury ◽  
History Of ◽  
Ideal Observer Analysis

The Relation Between Illegal Risk Behaviors and the Acquired Capability for Suicide

Crisis ◽  
2014 ◽  
Vol 35 (6) ◽  
pp. 368-377 ◽  
Author(s):  
Sean M. Mitchell ◽  
Danielle R. Jahn ◽  
Kelly C. Cukrowicz
Keyword(s):  
College Students ◽  
Risk Behaviors ◽  
Risky Behaviors ◽  
Interpersonal Theory ◽  
Interpersonal Theory Of Suicide ◽  
Acquired Capability ◽  
Self Injury ◽  
Partial Correlations ◽  
History Of ◽  
Explained Variance

Background: Suicide is the third leading cause of death among college students. The interpersonal theory of suicide may provide a way to conceptualize suicide risk in this population. Aims: We sought to examine relations between illegal behaviors that may act as risk factors for suicide and the acquired capability for suicide. Method: College students (N = 758) completed assessments of acquired capability and previous exposure to painful and provocative events, including illegal risk behaviors (IRBs). Linear regression, a nonparametric bootstrapping procedure, and two-tailed partial correlations were employed to test our hypotheses. Results: There was no significant relation between IRBs and acquired capability after controlling for legal painful and provocative experiences. A significant positive relation was identified between IRBs and fear/anxiety, contradicting the expected relation between increased painful and provocative experiences and lower fear/anxiety. Acquired capability explained variance in the relation between IRBs and history of suicide attempt or self-injury history. Conclusion: Further research is needed to examine links between IRBs and painful and provocative events, particularly to identify the point at which habituation begins to increase acquired capability, as our unexpected results may be due to a lack of habituation to risky behaviors or low variability of scores in the sample.

scholarly journals The Emergency Assessment and Management of Non-Suicidal Self-Injury in Adolescents

2020 ◽  
Vol 9 (2) ◽  
pp. 92-99
Author(s):  
Sindhu A. Idicula ◽  
Amy Vyas ◽  
Nicole Garber
Keyword(s):  
Mental Health ◽  
Mental Health Professionals ◽  
Outpatient Clinics ◽  
Psychiatric Diagnoses ◽  
Mental Health Providers ◽  
Health Providers ◽  
Levels Of Care ◽  
Self Injury ◽  
History Of ◽  
Inpatient Units

Background and Goals: Non-suicidal self-injury (NSSI) is a common presenting issue mental health providers experience in all levels of care from outpatient clinics to inpatient units. It is common among adolescents seen in emergency settings, either as a presenting problem or as a covert condition that may not be detected unless specifically assessed for. The presence of NSSI increases the risk of suicide. This article aims to help the clinician develop a better understanding of NSSI – what it may entail, the prevalence, and the motivations for why young people engage in it. Methods: We review the reasons adolescents injure themselves, the link between NSSI and psychiatric diagnoses and suicide, the assessment of NSSI, and treatment planning, with emphasis on ways to screen for NSSI and interventions that can be implemented in the Emergency Department. We illustrate the complexity of NSSI with the case of a young patient with a complex psychiatric history and an extensive history of self-injury. Results and Discussion: Despite the seeming intractability of NSSI, a number of evidencebased treatments exist. Treatment primarily involves specialized forms of psychotherapy, but interventions can be implemented in the ED that will reduce the immediate risk of NSSI while more definitive intervention is awaited. Conclusion: Mental health consultations in the ED should always include screening for NSSI. Mental health professionals in the ED can play an important role in the detection and treatment of this condition..

Communicating emotions in L2 Chinese: Talk in the dorm during study abroad

2018 ◽  
Vol 4 (2) ◽  
pp. 337-359
Author(s):  
Qian Wu
Keyword(s):  
Study Abroad ◽  
Native Speakers ◽  
Human Interaction ◽  
Emotional Expressions ◽  
Genetic Method ◽  
Naturally Occurring ◽  
Expression Of Emotion ◽  
History Of ◽  
Oral Interaction

AbstractCommunication of emotion is at the heart of human interaction. For second language (L2) learners, the ability to communicate one’s emotion is crucial, especially in the context of study abroad when they are in frequent contact with native speakers. The aim of the case study is to investigate how an American sojourner Puppies and her Chinese roommate Kiki (both pseudonyms) participated in conversational narratives in the dormitory to construct emotions, and how the contextualized interaction facilitated Puppies’ development of a linguistic repertoire for the expression of emotion in Chinese. Informed by Vygotskian sociocultural theory, the study followed the genetic method in tracing the history of Puppies’ Chinese emotional repertoire across the semester, thereby elucidating the language developmental processes in the situated oral interaction. Audio-recorded everyday interaction in the dorm is triangulated by Puppies’ responses to the pre- and post-Mandarin Awareness Interview and interviews with Puppies and Kiki. Analysis revealed that the contextualized dorm talk provided abundant L2 resources for Puppies to develop a L2 emotional repertoire, especially fear-related emotion expressions. A discrepancy in the product of development as gleaned from the Mandarin Awareness Interview, and the process of development as seen in the naturally occurring dorm talk, suggests that Puppies’ use or non-use of local emotional expressions could be mediated by her partial understanding of the forms and the speech style and identity she wished to assume.

scholarly journals Lifetime prevalence of non-suicidal self-injury in patients with eating disorders: a systematic review and meta-analysis

2016 ◽  
Vol 46 (7) ◽  
pp. 1345-1358 ◽  
Author(s):  
A. Cucchi ◽  
D. Ryan ◽  
G. Konstantakopoulos ◽  
S. Stroumpa ◽  
A. Ş. Kaçar ◽  
...  
Keyword(s):  
Substance Abuse ◽  
Eating Disorders ◽  
Suicide Attempts ◽  
Meta Analysis ◽  
Weighted Average ◽  
Average Percentage ◽  
Lifetime History ◽  
Self Injury ◽  
History Of ◽  
Meta Analyses

BackgroundAgainst a backdrop of increasing research, clinical and taxonomic attention in non-suicidal self-injury (NSSI), evidence suggests a link between NSSI and eating disorders (ED). The frequency estimates of NSSI in ED vary widely. Little is known about the sources of this variation, and no meta-analysis has quantified the association between ED and NSSI.MethodUsing random-effects meta-analyses, meta-regression analyses, and 1816–6466 unique participants with various ED, we estimated the weighted average percentage of individuals with ED, those with anorexia nervosa (AN) and those with bulimia nervosa (BN) who are reported to have a lifetime history of NSSI across studies. We further examined predictors of NSSI in ED.ResultsThe weighted average percentage of patients with a lifetime history of NSSI was 27.3% [95% confidence interval (CI) 23.8–31.0%] for ED, 21.8% (95% CI 18.5–25.6%) for AN, and 32.7% (95% CI 26.9–39.1%) for BN. The difference between BN and AN was statistically significant [odds ratio (OR) 1.77, 95% CI 1.14–2.77, p = 0.013]. The odds of NSSI increased by 24% for every 10% increase in the percentage of participants with histories of suicide attempts (OR 1.24, 95% CI 1.04–1.48, p = 0.020) and decreased by 26% for every 10% increase in the percentage of participants with histories of substance abuse (OR 0.74, 95% CI 0.58–0.95, p = 0.023).ConclusionsIn the specific context of ED, NSSI is highly prevalent and correlates positively with attempted suicide, urging for NSSI-focused treatments. A novel finding is that NSSI is potentially antagonized by substance abuse.

scholarly journals Ideal Observer Analysis of Overt Attention

2010 ◽  
Vol 10 (7) ◽  
pp. 12-12 ◽  
Author(s):  
W. S. Geisler
Keyword(s):  
Ideal Observer ◽  
Overt Attention ◽  
Ideal Observer Analysis

scholarly journals Measurement invariance of the distress tolerance scale among university students with and without a history of non-suicidal self-injury

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10915
Author(s):  
Ashley Slabbert ◽  
Penelope Hasking ◽  
Danyelle Greene ◽  
Mark Boyes
Keyword(s):  
University Students ◽  
Measurement Invariance ◽  
Lower Order ◽  
Distress Tolerance ◽  
Factor Model ◽  
Higher Order ◽  
Order Model ◽  
Self Injury ◽  
History Of ◽  
Order Four

Non-suicidal self-injury (NSSI) is the intentional damage to one’s body tissue in the absence of suicidal intent. NSSI primarily serves an emotion regulation function, with individuals engaging in self-injury to escape intense or unwanted emotion. Low distress tolerance has been identified as a mechanism that underlies self-injury, and is commonly assessed using the self-report Distress Tolerance Scale. There are mixed findings regarding the factor structure of the Distress Tolerance Scale, with some researchers utilising a higher-order distress tolerance score (derived from the scores on the four lower-order subscales) and other researchers using the four subscales as unique predictors of psychological outcomes. Neither of these factor structures have been assessed among individuals with a history of self-injury. Of note, an inability to tolerate distress (thought to underlie NSSI) may limit an individual’s capacity to accurately observe and report specific thoughts and emotions experienced in a state of heightened distress, which may impact the validity of scores on the Distress Tolerance Scale. Therefore, measurement invariance should be established before attributing NSSI-related differences on the scale to true differences in distress tolerance. We compared the Distress Tolerance Scale higher-order model with the lower-order four factor model among university students with and without a history of NSSI. Our results indicated that the lower-order four factor model was a significantly better fit to the data than the higher-order model. We then tested the measurement invariance of this lower-order factor model among individuals with and without a history of NSSI, and established configural and full metric invariance, followed by partial scalar and full residual error invariance. These results suggest the four subscales of the Distress Tolerance Scale can be used to confidently discern NSSI-related differences in distress tolerance.

Skepticism, reason, and decision

2018 ◽  
Author(s):  
◽  
Tung-Ying Wu
Keyword(s):  
Decision Theory ◽  
Decision Problem ◽  
Ethical Theory ◽  
Ideal Observer ◽  
University Of Missouri ◽  
The Third ◽  
History Of ◽  
The University ◽  
The Ideal

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT AUTHOR'S REQUEST.] "This dissertation is a combination of three different projects. The first project investigates the history of philosophy: Kant's refutation of idealism. In this project I propose a more plausible interpretation of Kant's argument against idealism. Next, the second project investigates ethical theory: the ideal observer view. There, I criticize an argument for ideal observer view as untenable. Finally, the third project investigates decision theory: the decision problem: Psycho Buttons. I argue that causal decision theory supplemented with Full Information does not lead to intransitivity in Psycho Buttons. In this chapter I present an introduction to each project." --Introduction

scholarly journals Cross inhibition from ON to OFF pathway improves the efficiency of contrast encoding in the mammalian retina

2012 ◽  
Vol 108 (10) ◽  
pp. 2679-2688 ◽  
Author(s):  
Zhiyin Liang ◽  
Michael A. Freed
Keyword(s):  
Spike Train ◽  
Ganglion Cells ◽  
Ideal Observer ◽  
Detection Accuracy ◽  
Low Contrast ◽  
Mammalian Retina ◽  
Ideal Observer Analysis ◽  
On And Off Pathways ◽  
Cross Inhibition

The retina is divided into parallel and mostly independent ON and OFF pathways, but the ON pathway “cross” inhibits the OFF pathway. Cross inhibition was thought to improve signal processing by the OFF pathway, but its effect on contrast encoding had not been tested experimentally. To quantify the effect of cross inhibition on the encoding of contrast, we presented a dark flash to an in vitro preparation of the mammalian retina. We then recorded excitatory currents, inhibitory currents, membrane voltages, and spikes from OFF α-ganglion cells. The recordings were subjected to an ideal observer analysis that used Bayesian methods to determine how accurately the recordings detected the dark flash. We found that cross inhibition increases the detection accuracy of currents and membrane voltages. Yet these improvements in encoding do not fully reach the spike train, because cross inhibition also hyperpolarizes the OFF α-cell below spike threshold, preventing small signals in the membrane voltages at low contrast from reaching the spike train. The ultimate effect of cross inhibition is to increase the accuracy with which the spike train detects moderate contrast, but reduce the accuracy with which it detects low contrast. In apparent compensation for the loss of accuracy at low contrast, cross inhibition, by hyperpolarizing the OFF α-cell, reduces the number of spikes required to detect the dark flash and thereby increases encoding efficiency.

Emotional Consequences of Participating in Research: How Does a History of Non-Suicidal Self-Injury and Trauma Exposure Affect Participants’ Experiences?

2020 ◽  
pp. 155626462097961
Author(s):  
Ryan A. Robertson ◽  
M. Shae Nester ◽  
Christina M. Dardis
Keyword(s):  
Trauma Exposure ◽  
Research Participation ◽  
Emotional Reactions ◽  
Self Report ◽  
Research Experience ◽  
Self Injury ◽  
Potential Safety ◽  
Previous Trauma ◽  
History Of ◽  
Asking Questions

Although research into trauma and non-suicidal self-injury (NSSI) is critical to informing evidence-based interventions, IRB committees express caution about the potential safety concerns these questions pose to participants. The present study examined the emotional consequences of participating in research asking questions about trauma and NSSI. A total of 544 participants completed self-report questionnaires assessing trauma exposure, NSSI, and reactions to research participation. Results indicated that trauma exposure was positively related with emotional reactions, and NSSI engagement was associated with higher incidences of trauma. Additionally, those with a history of NSSI reported greater emotional reactions and perceived drawbacks after participation. However, overall, individuals with a history of NSSI still indicated a positive research experience. Implications for how to safely conduct research with participants who have a history of NSSI and previous trauma exposure are discussed.

Sign in / Sign up

Export Citation Format

Share Document