The immunoenhancing effects of humor on secretory IgA and resistance to respiratory infections

Abstract

In three different studies involving exposun to two differcot humorous and comparison videotapes, it was demonstrated that humor arousal signiticantly increases S-IgA in college students. Furthermore significantly more of the subjects exposed to the humor films showed an increese in S-IgA than the subjects exposed to the comparison films. A good sense of humor, measured as a trait, was associated with higher baseline concentrations of S-IgA and with greater increases in S-IgA in response to a humor arousing film. Higher bascline kvels and gains in S-IgA in respoase to humor were associated with lower reported severity of colds in the past twelve months and in the three months following assessment. However, a good sense of humor was related to lesser cold incidence and severity only if it involved appreciation rather than production of humor. While those who actively tell jokes also show higher S-IgA levels, they show greater susceptibility to colds than those who only appreciate humor probably because they sodalize more often under conditions that expose them more to cold infections.     

Laboring to Make Sex “Safe”: Sexual Vigilance in Young U.S. College Women

Sex Roles - Definitions of “safe sex” often focus on the use of condoms and contraception, but largely ignore other dimensions of safety, such as efforts to feel emotionally or...     

Mental search processes in problem solving

A new approach to problem solving was applied to multisolution problems in a memory search task. Subjects memorized a list of eight four-letter foods, and then searched mentally through the list for answers to questions. The times between successive answers (IRTs) were recorded along with the answers themselves. This allowed a comparison of two possible memory search strategies: (1) sampling with replacement, and (2) sampling without replacement. The results were largely in agreement with the sampling-without-replacement strategy. However, a more detailed breakdown of the data revealed that most subjects searched through the list in a rigid serial order. Further, an analysis of questions with identical answers showed that the IRTs were very nearly additive. This led to an additive time component model based on the independent summation of (a) read-in time, (b) memory-search time, (c) decision-making time, and (d)response-output time. This approach appeared generally more satisfactory than previous attempts to account for problem-solving behavior.     

The dynamics of multimodal integration: The averaging diffusion model

We combine extant theories of evidence accumulation and multi-modal integration to develop an integrated framework for modeling multimodal integration as a process that unfolds in real time. Many studies have formulated sensory processing as a dynamic process where noisy samples of evidence are accumulated until a decision is made. However, these studies are often limited to a single sensory modality. Studies of multimodal stimulus integration have focused on how best to combine different sources of information to elicit a judgment. These studies are often limited to a single time point, typically after the integration process has occurred. We address these limitations by combining the two approaches. Experimentally, we present data that allow us to study the time course of evidence accumulation within each of the visual and auditory domains as well as in a bimodal condition. Theoretically, we develop a new Averaging Diffusion Model in which the decision variable is the mean rather than the sum of evidence samples and use it as a base for comparing three alternative models of multimodal integration, allowing us to assess the optimality of this integration. The outcome reveals rich individual differences in multimodal integration: while some subjects’ data are consistent with adaptive optimal integration, reweighting sources of evidence as their relative reliability changes during evidence integration, others exhibit patterns inconsistent with optimality.     

The Effect of Sexual Programme Content on the Recall of Foreign Sexual and Non‐sexual Advertisements

This study explored the effect of programme content (sexual and non‐sexual) on the recall of sexual and non‐sexual advertisements. Seventy‐eight participants were allocated randomly to four different groups and viewed either a sexual or non‐sexual programme with either sexual or non‐sexual advertisements placed within. Free recall and cued recall of the advertisements were assessed. The sexual content of programmes impaired advertisement recall, for both free recall and cued recall. Furthermore, advertisements that were of a sexual nature were remembered better than neutral advertisements. There was also an interaction between advertisement type and gender; women remembered more sexual than non‐sexual advertisements, but this was not the case for men. Finally, there was an interaction between programme type and gender, with a marked tendency for men to recall fewer advertisements embedded in the sexual programme than women. Limitations and implications of this research are discussed.Copyright © 2017 John Wiley & Sons, Ltd.     

Effects of Attention on the Strength of Lexical Influences on Speech Perception: Behavioral Experiments and Computational Mechanisms

The effects of lexical context on phonological processing are pervasive and there have been indications that such effects may be modulated by attention. However, attentional modulation in speech processing is neither well documented nor well understood. Experiment 1 demonstrated attentional modulation of lexical facilitation of speech sound recognition when task and critical stimuli were identical across attention conditions. We propose modulation of lexical activation as a neurophysiologically plausible computational mechanism that can account for this type of modulation. Contrary to the claims of critics, this mechanism can account for attentional modulation without violating the principle of interactive processing. Simulations of the interactive TRACE model extended to include two different ways of modulating lexical activation showed that each can account for attentional modulation of lexical feedback effects. Experiment 2 tested conflicting predictions from the two implementations and provided evidence that is consistent with bias input as the mechanism of attentional control of lexical activation.     

A connectionist model of a continuous developmental transition in the balance scale task

A connectionist model of the balance scale task is presented which exhibits developmental transitions between ‘Rule I’ and ‘Rule II’ behavior [Siegler, R. S. (1976). Three aspects of cognitive development. Cognitive Psychology,8, 481–520.] as well as the ‘catastrophe flags’ seen in data from Jansen and van der Maas [Jansen, B. R. J., & van der Maas, H. L. J. (2001). Evidence for the phase transition from Rule I to Rule II on the balance scale task. Developmental Review, 21, 450–494]. The model extends a connectionist model of this task [McClelland, J. L. (1989). Parallel distributed processing: Implications for cognition and development. In R. G. M. Morris (Ed.), Parallel distributed processing: Implications for psychology and neurobiology (pp. 8–45). Oxford: Clarendon Press] by introducing intrinsic variability into processing and by allowing the network to adapt during testing in response to its own outputs. The simulations direct attention to several aspects of the experimental data indicating that children generally show gradual change in sensitivity to the distance dimension on the balance scale. While a few children show larger changes than are characteristic of the model, its ability to account for nearly all of the data using continuous processes is consistent with the view that the transition from Rule I to Rule II behavior is typically continuous rather than discrete in nature.     

The Relationship Between Caregiver Capacity and Intensive Community Treatment for Children with a Mental Health Crisis

We studied 9,220 children referred to a comprehensive mental health crisis stabilization program to examine the impact of caregiver capacity on crisis worker decisions to refer children for intensive community-based treatment as opposed to inpatient psychiatric hospitalization. Due to the different role of caregivers in the child welfare system, analyses were stratified by state custody status. Among both groups, there was a significant inverse association between child mental health need and referral to intensive community-based treatment. For children not in state custody with low mental health need, there was no difference in the likelihood of referral to intensive community-based treatment across levels of caregiver capacity. However, for children not in state custody with medium and high mental health needs, those whose caregivers were deficient or severely deficient were significantly more likely to be referred for intensive community-based treatment than were those who had capable caregivers. Multivariate analyses demonstrated similar results after controlling for potential confounding variables and confirmed that caregiver capacity contributes significantly to the logistic model’s classification accuracy. Results suggest further investigation of the impact of caregiver capacity on mental health crisis worker referral decisions is needed.     

Motivational and Other Sources of Work Accomplishments in Mid–Life: A Longitudinal Study

ABSTRACT Earned Income and work accomplishment were determined at age 41 for 89 adults whose mothers had been interviewed for their child-rearing practices when the adults were 5 years old. At age 31, in spontaneous thought but not self-report, n Achievement predicted earned income and socialized power motivation predicted work accomplishment at age 41. Hardships (or "bad breaks") during childhood and adolescence predicted work outcomes for both men and women, as did education for men. Parenting achievement pressure in the first 2 years of life was associated with adult n Achievement and earned income, while moderate encouragement of assertiveness by mothers who were warm to boys and cool to girls was associated with adult socialized power motivation and work accomplishment. Controls for social class of origin, IQ, temperament, and education did not explain the relations between parenting, motivation, and work outcomes, although education played a larger role for men than women who worked both inside and outside the home.