Signs of Socioeconomic Status: A Thin-Slicing Approach

ABSTRACT— Socioeconomic status (SES) is a primary determinant of health vulnerabilities and social affiliations. To ascertain if SES is signaled in brief patterns of nonverbal behavior, we had participants of varying SES backgrounds engage in a brief interaction with a stranger. Videos of 60-s slices of these interactions were coded for nonverbal cues of disengagement and engagement, and estimates of participants' SES were provided by naive observers who viewed these videos. As predicted by analyses of resource dependence and power, upper-SES participants displayed more disengagement cues (e.g., doodling) and fewer engagement cues (e.g., head nods, laughs) than did lower-SES participants. Results were also consistent with the thin-slicing literature, in that observers' estimates of SES were reliable with each other and accurately predicted targets' family income, maternal education, and subjective SES. Finally, nonverbal displays of disengagement and engagement predicted observers' estimates of SES, which suggests that these cues are systematic signs of SES. These results have implications for understanding the effect of SES on social interactions and patterns of disengagement and engagement in other realms.     

Social Contact,Loneliness, and Mass Media Use: A Test of Two Hypotheses1

The possible connections between social variables such as frequency of social activity and subjective loneliness on the one hand, and extent of mass media use on the other, have received relatively little empirical attention. In this investigation, two related hypotheses concerning such links are proposed. The compensation hypothesis holds that persons with little social contact or greater loneliness will be more likely to utilize mass media to compensate for social impoverishment. The buffering hypothesis more specifically predicts that such compensation is effective; that is, persons “at risk” for loneliness because of diminished social contact may be at least partially protected from subjective loneliness due to heavy use of mass media. The hypotheses were tested in two samples: college students and a group of adolescent males attending a summer camp. Little support was found for the compensation hypothesis. While limited support was found for the buffering hypothesis, analyses also revealed an unexpected opposite effect; for the music variable, heavy media use actually intensified the association between social deficits and subjective loneliness. Some limitations of this study are discussed, and issues related to the unexpected “intensification” effects are presented.     

Childhood trauma in victims of the Armenian earthquake

Childhood victims of the Armenian earthquake have shown numerous diagnostic indicators of traumatization and stress. Examined are clinical data which address advances in understanding diagnostic indicators and resulting psychopathology in childhood victims of natural disasters. Presented is a review of current theory about the processing of traumatization in children, as well as case vignettes, and recommendations for further research.     

Somatic and autonomic indexes of recovery from electroconvulsive shock-induced amnesia in rats

Autonomic response indexes of experimental amnesia have recently been found to have higher electroconvulsive shock (ECS) intensity thresholds and steeper retrograde gradients than have traditional somatic indexes. The present studies examined the hypothesis that recovery from somatically indexed experimental amnesia depends upon the existence of autonomically available residual memory. In a between-subjects design, a 200-mA ECS was used to produce amnesia for a tone-footshock pairing as indicated by lick suppression, defection, and bradycardia. The next day, these amnesic animals received a reminder footshock outside of the training apparatus, which was found to restore memory on a test trial 24 hr later. The behavior of control groups indicated that this reminder effect was due to the restoration of specific memory rather than systemic consequences of treatment. With a within-subjects design, a second experiment obtained a reminder effect in animals individually shown to be "fully" amnesic by all three response indexes monitored. A third experiment varied the intensity of the reminder footshock and revealed that the different memory indexes examined do not have reminder-footshock thresholds inversely related to their initial resistance to amnesia. The results support a retrieval-failure view of experimental amnesia and suggest that the same fundamental physiological processes underlie both autonomically indexed memory and somatically indexed memory.     

Variation in suicide occurrence by time of day, day of the week, month, and lunar phase

Previous studies suggest that suicide occurrence varies by month and day of the week, but not by lunar phase. Variation by time of day has never before been adequately examined; to our knowledge, all previous studies have failed to obtain time-of-death information for a large percentage of cases. We examined suicide occurrence among residents of Sacramento County, CA, during the period from 1925 to 1983. Data were abstracted from coroner's autopsy and investigative reports. In contrast to previous studies, data on time of death were available for a large percentage of cases. 4,190 suicide deaths were identified during the study period. Suicide occurrence varied substantially by time of day; for both sexes and for ages under 65 years, the fewest suicide deaths occurred during the early morning hours, from 0401 to 0800. For recent years of the study, suicides occurred most frequently on Monday for both males and females and for most age groups. Variation by month followed no consistent pattern by gender, age, years of the study, or combinations of these factors. Contrary to popular belief, suicide occurrence did not vary by lunar phase.     

Neuropsychological impairments in the syndromes of schizophrenia: a comparison between different dimensional models

This study investigates the associations between the different symptom dimensions of schizophrenia and neuropsychological performances. Globally, the results replicate previously described associations. The "negative" dimension correlates with impaired sustained attention and working memory, thus suggestive of dorsolateral frontal cortex dysfunction. "Disorganization" correlates with the ability to inhibit proactive interference. thus with ventromedial frontal dysfunction. The results also add support to the view that the "psychotic" dimension described in three-dimension models includes in fact two distinct dimensions, (1) "hallucinations," here associated to episodic memory measures, and (2) "delusions", here associated to visuospatial attention, thus suggestive of mediotemporal and posterior neocortical dysfunction, respectively.     

Auditory-Processing Malleability: Focus on Language and Music

ABSTRACT— Auditory processing forms the basis of humans' ability to engage in complex behaviors such as understanding spoken language or playing a musical instrument. Auditory processing is not a rigid, encapsulated process; rather, it interacts intimately with other neural systems and is affected by experience, environmental influences, and active training. Auditory processing is related to language and cognitive function, and impaired auditory processing negatively affects the quality of life of many people. Recent studies suggest that the malleability of the auditory system may be used to study the interaction between sensory and cognitive processes and to enhance human well-being.     

Resting gamma power is linked to reading ability in adolescents

Infants who have more power within the gamma frequency range at rest develop better language and cognitive abilities over their first 3 years of life (Benasich et al., 2008). This positive trend may reflect the gradual increase in resting gamma power that peaks at about 4 years (Takano & Ogawa, 1998): infants further along the maturational curve may exhibit both increased resting gamma power and more advanced language and cognitive function. Similar to other neural characteristics such as synaptic density, resting gamma power subsequently decreases with further development into adulthood (Tierney, Strait, O'Connell & Kraus, 2013). If previously reported relationships between resting gamma power and behavioral performance reflect variance in maturation, at least in part, negative correlations between resting gamma and behavior may predominate in later developmental stages, during which resting gamma activity is decreasing. We tested this prediction by examining resting gamma activity and language‐dependent behavioral performance, reflected by a variety of reading‐related tests, in adolescents between the ages of 14 and 15 years. Consistent with our predictions, resting gamma power inversely related to every aspect of reading assessed (i.e. reading fluency, rapid naming, and basic reading proficiency). Our results suggest that resting gamma power acts as an index of maturational progress in adolescents.