The contribution of prosody to machine classification of schizophrenia.

We show how acoustic prosodic features, such as pitch and gaps, can be used computationally for detecting symptoms of schizophrenia from a single spoken response. We compare the individual contributions of acoustic and previously-employed text modalities to the algorithmic determination whether the speaker has schizophrenia. Our classification results clearly show that we can extract relevant acoustic features better than those textual ones. We find that, when combined with those acoustic features, textual features improve classification only slightly.

Morphological characteristics of spoken language in schizophrenia patients - an exploratory study.

Psychosis is diagnosed based on disruptions in the structure and use of language, including reduced syntactic complexity, derailment, and tangentiality. With the development of computational analysis, natural language processing (NLP) techniques are used in many areas of life to make evaluations and inferences regarding people's thoughts, feelings and behavior. The present study explores morphological characteristic of schizophrenia inpatients using NLP. Transcripts of recorded stories by 49 male subjects (24 inpatients diagnosed with schizophrenia and 25 controls) about 14 Thematic Apperception Test (TAT) pictures were morphologically analyzed. Relative to the control group, the schizophrenic inpatients employed: (1) a similar ratio of nouns, but fewer verbs, adjectives and adverbs; (2) a higher ratio of lemmas to token (LTR) and type to token (TTR); (3) a smaller gap between LTR and TTR; and (4) greater use of the first person. The results were cross-verified using three well-known fitting classifier algorithms (Random Forest, XGBoost and a support vector machine). Tests of prediction accuracy, precision and recall found correct attribution of patients to the schizophrenia group at a rate of between 80 and 90%. Overall, the results suggest that the language of schizophrenic inpatients is significantly different from that of healthy controls, being morphologically less complex, more associative and more focused on the self. The findings support NLP analysis as a complementary addition to the traditional clinical psychosis evaluation for schizophrenia.

Adolescents' Sexual Encounters With Either Romantic or Casual Partners and the Quality of Their Romantic Relationships Four Years Later.

Adolescent sexual behavior was examined within a health perspective. Assuming a developmental perspective, the current study investigated the associations between sexual behavior in either stable relationships or in casual encounters, and the quality of romantic relationships and affect 4 years later. Data were collected from 144 Israeli adolescents aged 16-18 years (mean age 16.57 years). Participants completed diary data over a period of 10 days and reported on the quality of their romantic encounters and their emotions, and on their sexual behavior in stable relationships or casual encounters. Four years later, they were asked to complete diary data again for 10 consecutive days and report on the quality of their romantic relationships and their positive and negative affect. Findings indicate that involvement in sexual behavior in stable romantic relationships was associated only with future romantic partner support. In contrast, earlier involvement in casual sexual behavior was associated with a number of future indices: lower partner support, greater negative affect as well as greater relationship tension, and dyadic hurtful behavior 4 years later. The differential role of sexuality within a stable relationship or casual encounters among adolescents for their future romantic development is discussed within a developmental framework.

Patterns of Romantic Pathways among 23 Year Olds and their Adolescent Antecedents.

Observation of the romantic lives of the majority of young people shows that they might move between transitory and inconsistent states, being in and out of a relationship. The present study aims to better understand the meaning of these fluctuations. For this purpose, and employing a multi-method design, 144 Israeli adolescents (59.7% females) were followed from age 16 to 23. At age 23 in-depth interviews were conducted with the participants, focusing on their romantic histories. Analyses of interviews at age 23 yielded four distinctive romantic pathways differing in stability and the ability to progress toward intimacy: Sporadic and Casual Encounters, Sporadic Encounters in Response to a Stressful Romantic Experience, Steady Non-Intimate Involvements, and Progression toward Steady Intimate Involvements. The findings showed that more than half of participants belonged to the Progression toward Steady Intimate Involvements pathway, suggesting that romantic fluctuations served as means to progress toward intimate involvements. Progression toward steady intimate involvement was explained by greater secure attachment, greater capacity to face tension and to express one's views, and greater parental support measured seven years earlier. In contrast, lower earlier intra- and interpersonal assets during adolescence were more likely to associate with a variety of romantic experiences during emerging adulthood that are characterized by romantic instabilities and difficulty to progress toward intimacy. The findings are discussed within the framework of the Developmental Systems Theory.

"I Swear I Will Never Betray You": Factors Reported by Spouses as Helping Them Resist Extramarital Sex in Relation to Gender, Marriage Length, and Religiosity.

Studies suggest that married people frequently engage in intimate relationships with people other than their spouses, and the literature has extensively examined motives for doing so. However, less is known about what factors prevent spouses from engaging in extramarital sex. While investment theory, interdependence theory, and moral theories offer insights into this question, they have not been subject to much empirical research. We examine these theories in relation to several characteristics of individuals and couples: gender, length of the marriage, and religiosity. In two studies, 423 participants completed a questionnaire on the perceived importance of 29 reasons to resist the temptation for extramarital sex. Participants also reported the likelihood that they would engage in extramarital sex if the opportunity presented itself. Results show that being female, more religious, and married for less time were associated with greater expectations of refraining from extramarital sex when presented with a hypothetical scenario. Multiple hierarchical regression showed that among factors relevant to conscious decision making, moral standards and fundamental anxieties (fear of remaining alone) predict expectations of refraining from extramarital sex better than concerns about effects on the children or the other participant.

Facebook's Contribution to Well-being among Adolescent and Young Adults as a Function of Mental Resilience.

Studies of correlations between general internet use and psychological well-being have shown mixed results. The present study aimed to elucidate the relationship between Facebook use and psychological well-being, with mental resilience expected to moderate the relationship. Two hundred Israeli adolescents and young adults completed questionnaires assessing their Facebook use, mental resilience, and psychological well-being. Results showed that Facebook use was positively correlated with psychological well-being, and that this relationship was particularly strong for participants with low mental resilience. The findings support a positive effect of Facebook use as providing a virtual supportive community for individuals who may lack the social skills needed to develop social capital and confidence through traditional communication paths.

Birth order effects on the separation process in young adults: an evolutionary and dynamic approach.

The present study analyzes the differential contribution of a familial or social focus in imaginative ideation (the personal fable and imagined audience mental constructs) to the separation-individuation process of firstborn, middleborn, and lastborn children. A total of 160 young adults were divided into 3 groups by birth order. Participants' separation-individuation process was evaluated by the Psychological Separation Inventory, and results were cross-validated by the Pathology of Separation-Individuation Inventory. The Imaginative Ideation Inventory tested the relative dominance of the familial and social environments in participants' mental constructs. The findings showed that middleborn children had attained more advanced separation and were lower in family-focused ideation and higher in nonfamilial social ideation. However, the familial and not the social ideation explained the variance in the separation process in all the groups. The findings offer new insights into the effects of birth order on separation and individuation in adolescents and young adults.

Social cognition in schizophrenia: cognitive and affective factors.

INTRODUCTION: Social cognition refers to how people conceive, perceive, and draw inferences about mental and emotional states of others in the social world. Previous studies suggest that the concept of social cognition involves several abilities, including those related to affect and cognition. The present study analyses the deficits of individuals with schizophrenia in two areas of social cognition: Theory of Mind (ToM) and emotion recognition and processing. Examining the impairment of these abilities in patients with schizophrenia has the potential to elucidate the neurophysiological regions involved in social cognition and may also have the potential to aid rehabilitation. METHODS: Two experiments were conducted. Both included the same five tasks: first- and second-level false-belief ToM tasks, emotion inferencing, understanding of irony, and matrix reasoning (a WAIS-R subtest). The matrix reasoning task was administered to evaluate and control for the association of the other tasks with analytic reasoning skills. Experiment 1 involved factor analysis of the task performance of 75 healthy participants. Experiment 2 compared 30 patients with schizophrenia to an equal number of matched controls. Results. (1) The five tasks were clearly divided into two factors corresponding to the two areas of social cognition, ToM and emotion recognition and processing. (2) Schizophrenics' performance was impaired on all tasks, particularly on those loading heavily on the analytic component (matrix reasoning and second-order ToM). (3) Matrix reasoning, second-level ToM (ToM2), and irony were found to distinguish patients from controls, even when all other tasks that revealed significant impairment in the patients' performance were taken into account. CONCLUSIONS: The two areas of social cognition examined are related to distinct factors. The mechanism for answering ToM questions (especially ToM2) depends on analytic reasoning capabilities, but the difficulties they present to individuals with schizophrenia are due to other components as well. The impairment in social cognition in schizophrenia stems from deficiencies in several mechanisms, including the ability to think analytically and to process emotion information and cues.