INCREASING APPROPRIATE SPEECH IN A CHRONIC SCHIZOPHRENIC

In a severely withdrawn schizophrenic, a combination of instructions, modeling, informational feedback, and noncontingent reinforcement was associated with a low rate of appropriate verbalizations. However, an increase in speech output was obtained using a combination of instructions, modeling, informational feedback, and contingent reinforcement. The design of this study thus permitted the conclusion that contingent reinforcement was crucial in bringing about the increase in appropriate verbalizations. The three verbal behaviors that increased in frequency were: (a) the number of socially appropriate words emitted, (b) declarative statements, and (c) appropriate replies to questions. The verbal behaviors of conversational questions and positive conversational feedback failed to be significantly affected by the experimental procedures. An attempt was also made to establish whether having the subject engage in the observable, information-gathering response of reading aloud would result in increased speech output during a subsequent conversation period. Having the subject read aloud failed to have any discernible positive effect on his speech output. A withdrawal design was used to evaluate the effectiveness of the experimental procedures. The importance of assessing changes in verbal output with a variety of verbal response measures, stereotyped verbal behaviors, and carryover effects are discussed.     

Evaluating the effects of functional communication training in the presence and absence of establishing operations

We conducted functional analyses of aberrant behavior with 4 children with developmental disabilities. We then implemented functional communication training (FCT) by using different mands across two contexts, one in which the establishing operation (EO) that was relevant to the function of aberrant behavior was present and one in which the EO that was relevant to the function of aberrant behavior was absent. The mand used in the EO-present context served the same function as aberrant behavior, and the mand used in the EO-absent context served a different function than the one identified via the functional analysis. In addition, a free-play (control) condition was conducted for all children. Increases in relevant manding were observed in the EO-present context for 3 of the 4 participants. Decreases in aberrant behavior were achieved by the end of the treatment analysis for all 4 participants. Irrelevant mands were rarely observed in the EO-absent context for 3 of the 4 participants. Evaluating the effectiveness of FCT across different contexts allowed a further analysis of manding when the establishing operations were present or absent. The contributions of this study to the understanding of functional equivalence are also discussed.     

中学生手机线上交流与手机成瘾的关系：社会资本和手机关系需要满足的中介作用

采用问卷对3268名中学生进行调查,以探讨手机线上交流（陌生人、熟人）、社会资本、手机关系需要满足与手机成瘾之间的关系,结果显示：（1）中学生手机线上交流（陌生人、熟人）能直接正向预测手机成瘾;（2）当对象为陌生人时,中学生手机线上交流能够通过手机关系需要满足间接预测手机成瘾;（3）中学生线上交流（陌生人、熟人）能通过社会资本经手机关系需要的多重中介作用来预测手机成瘾。（4）当对象为熟人时,线上交流通过社会资本、手机关系需要预测手机成瘾的作用更显著。这些研究结果可以为预防与干预中学生手机成瘾提供参考价值。     

Systematic mapping of developmental milestones in wild chimpanzees

Postnatal development is protracted relative to lifespan in many primates, including modern humans (Homo sapiens), facilitating the acquisition of key motor, communication and social skills that can maximize fitness later in life. Nevertheless, it remains unclear what evolutionary drivers led to extended immature periods. While the developmental milestone literature is well established in humans, insight we can gain from one‐species models is limited. By comparing the timing of relatable developmental milestones in a closely related species, the chimpanzee (Pan troglodytes), we can gain further understanding of the evolution of such an extended developmental phase. To date, few studies have specifically attempted to estimate developmental milestones in a manner comparable to the human literature, and existing studies lack sufficient sample sizes to estimate which milestones are more plastic with higher inter‐individual variation in the timing of their emergence. Here, we describe the emergence of gross motor, fine motor, social interaction and communication traits from a longitudinal sample of 19 wild chimpanzee infants (8 females and 11 males), Taï National Park, Côte d’Ivoire. Gross motor traits emerged at a mean of 4 months, communication traits at 12 months, social interaction traits at 14 months and fine motor traits at 15 months, with later emerging milestones demonstrating greater inter‐individual variation in the timing of the emergence. This pattern of milestone emergence is broadly comparable to observations in humans, suggesting selection for a prolonged infantile phase and that sustained skills development has a deep evolutionary history, with implications for theories on primate brain development.     

How Emotional Are Populists Really? Factors Explaining Emotional Appeals in the Communication of Political Parties

Are populists really more emotional than mainstream parties? The alleged link between populism and emotional communication has barely been subject to systematic empirical scrutiny. I use literature on populist communication and appraisal theory to generate expectations about which political parties use which emotional appeals. I test these claims by applying a novel emotional dictionary to a large set of text data including more than 700,000 press releases and tweets from three European countries. As expected, I find that populist parties use significantly more negative emotional appeals (anger, fear, disgust, sadness) and less positive emotional appeals (joy, enthusiasm, pride, hope) than mainstream parties. Furthermore, I find that political actors adapt the usage of emotional appeals to different purposes depending on the communication medium and the politicians' status level. This study entails important implications for the research on emotional appeals in politics and populist communication.     

Infant screen media usage and social-emotional functioning

There has been little research on whether and how screen media usage affects social-emotional (SE) function prior to two years of age, even though early SE development is understood to be nurtured through interpersonal experience, mainly withthe primary caregiver. This study sought to characterise infant screen media usage and understand how it may link with concurrent SE function by testing associated effects on reducing parent-infant interaction and of parent psychological factors. Questionnaire responses from 327 UK-based parents of infants aged 6–24 months showed diverse usage in the amount of time spent on screen media (‘screen time’) and amount of parental involvement (co-sharing and co-referencing). Infants with possible SE delay experienced more screen time than those at low risk. The study tested three mediation models and found support for the displacement and not distancing hypothesis based on this community sample. While screen time predicted both SE competence and SE problems, reduced parent-infant play partially mediated the effect on SE competence. Parent depressed mood was positively linked with infant SE problems, but there was little evidence that increased screen time mediated this effect. Also, parent reflective function and attitudes toward parent-infant play were unrelated to screen time. Though longitudinal study is warranted, the findings implicate screen media usage as potentially directly and indirectly relevant when addressing infant mental health.     

Prenatal exposure to maternal depression is related to the functional connectivity organization underlying emotion perception in 8-10-month-old infants – Preliminary findings

Emotion perception is critical for infant’s social development. Mother’s mood during pregnancy has been associated with infants’ emotional developmental risks. Graphtheory analysis was applied on EEG data recorded from 35, 8-to-10-month-old-infants prenatally exposed to high or low depressed symptoms, while viewing happy and sad faces. We found an interaction between group and emotion such that infants exposed to high-depressed-symptoms showed higher modularity – reflecting reduced perceptual-dynamics - for viewing happy emotions compared to sad. The opposite was observed for infants exposed to low-depressive-symptoms. These preliminary findings suggest that prenatal depressive mood may shape early functional organization for viewing emotional faces.     

A comprehensive model of women’s social cognition and responsiveness to infant crying: Integrating personality,emotion, executive function,and sleep

Disparate lines of research suggest that women’s (a) emotion regulation and personality, (b) executive function and (c) sleep may be important predictors of mothers’ cry responding in part through their effects on social cognition. However, the extent to which each contributes to cry responding independently remains unknown. We examined this question in a convenience sample of 109 nulliparous undergraduate women. Women completed online surveys to assess personality and emotion dysregulation traits, then visited the lab for a testing session during which they reported on sleep the night before and reactions to videotapes of crying infants and completed computerized working memory and inhibitory control tasks under challenging noise conditions (exposure to traffic and cry sounds). Results indicate that women’s positive personality and higher working memory were associated with higher levels of infant-oriented cry processing (i.e., accurate distress detection, empathy and situational/emotional attributions about distress), which in turn was associated with higher intended responsiveness to infant crying. Emotion dysregulation and deficits in inhibitory control were associated with higher levels of self-oriented cry processing (i.e., anger, anxiety, negative and emotion minimizing attributions in response to infant distress), which in turn was associated with lower cry responsiveness. Short-term sleep deprivation was associated with lower intended responsiveness via the above path from poorer inhibitory control to heightened self-oriented cry processing. Findings suggest that sleep, emotional and cognitive factors are associated with cry processing and subsequent responsiveness independent of one another.     

Napping alone in the snow and cuddling with mommy at night: An exploratory,qualitative study of Norwegian beliefs on infant sleep

This study addresses Norwegian infants’ sleeping places during the day and night. In the first part we asked the general public to indicate where they think infants should sleep by placing stickers on a depiction of different sleeping places. This revealed that infants were expected to predominantly sleep outside in a stroller during the day and either bedshare, room share or sleep independently from their parents at night. Interviews with Norwegian mothers confirmed these patterns and revealed that mothers emphasized the benefits of fresh air and being out in nature. They expressed valuing independence, though their opinions on how this could be achieved diverged, some proposing independent, other co-sleeping. Other outcomes of sleeping arrangements were rarely mentioned. Some, particularly mothers whose children bedshared or had different sleeping places from one night to the other or throughout the night, emphasized the infants’ right to choose how to sleep. None of the mothers endorsed letting infants cry themselves to sleep but many mentioned the importance of the child feeling secure. We argue that the seemingly contradictory sleeping patterns is in line with cultural values for independence, social cohesion and a love of nature.     

The origin of language and relative roles of voice and gesture in early communication development

Both vocalization and gesture are universal modes of communication and fundamental features of language development. The gestural origins theory proposes that language evolved out of early gestural use. However, evidence reported here suggests vocalization is much more prominent in early human communication than gesture is. To our knowledge no prior research has investigated the rates of emergence of both gesture and vocalization across the first year in human infants. We evaluated the rates of gestures and speech-like vocalizations (protophones) in 10 infants at 4, 7, and 11 months of age using parent-infant laboratory recordings. We found that infant protophones outnumbered gestures substantially at all three ages, ranging from >35 times more protophones than gestures at 3 months, to >2.5 times more protophones than gestures at 11 months. The results suggest vocalization, not gesture, is the predominant mode of communication in human infants in the first year.