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241.
Seth B. Agyei Magnus Holth F.R. van der Weel Audrey L.H. van der Meer 《Developmental science》2015,18(3):436-451
Electroencephalogram (EEG) was used in infants at 3–4 months and 11–12 months to longitudinally study brain electrical activity as the infants were exposed to structured forwards and reversed optic flow, and non‐structured random visual motion. Analyses of visual evoked potential (VEP) and temporal spectral evolution (TSE, time‐dependent amplitude changes) were performed on EEG data recorded with a 128‐channel sensor array. VEP results showed infants to significantly differentiate between the radial motion conditions, but only at 11–12 months where they showed shortest latency for forwards optic flow and longest latency for random visual motion. When the TSE results of the motion conditions were compared with those of a static non‐flow dot pattern, infants at 3–4 and 11–12 months both showed significant differences in induced activity. A decrease in amplitudes at 5–7 Hz was observed as desynchronized theta‐band activity at both 3–4 and 11–12 months, while an increase in amplitudes at 9–13 Hz was observed as synchronized alpha‐band activity only at 11–12 months. It was concluded that brain electrical activities related to visual motion perception change during the first year of life, and these changes can be observed both in the VEP and induced activities of EEG. With adequate neurobiological development and locomotor experience infants around 1 year of age rely, more so than when they were younger, on structured optic flow and show a more adult‐like specialization for motion where faster oscillating cell assemblies have fewer but more specialized neurons, resulting in improved visual motion perception. 相似文献
242.
Behavioral evidence suggests that young and older adults show a benefit in source memory accuracy when processing materials in reference to the self. In the young, activity within the medial prefrontal cortex supports this source memory benefit at study. In this investigation, we examined whether the same neural regions support this memory benefit in both age groups. Using fMRI, we scanned participants while they studied and retrieved pictures of objects paired with one of three scenes (source) under self-reference and other-reference conditions. At the time of study, half of the items were presented once and half twice, allowing us to match behavioral performance between the groups. Both groups showed equivalent source accuracy benefits for objects encoded self-referentially. Activity in the left dorsal medial prefrontal cortex supported subsequent source memory in both age groups for the self-referenced relative to the other-referenced items. At the time of test, source accuracy for both the self- and other-referenced items was supported by a network of regions including the precuneus in both age groups. At both study and test, little in the way of age differences emerged, suggesting that when they are matched on behavioral performance, young and older adults engage similar regions in support of source memory when processing materials in reference to the self; however, when we did not match performance, age differences in functional recruitment were prevalent. These results suggest that by capitalizing on preserved processes (self-referential encoding), older adults can show improvement in memory for source details that they would typically not remember well, relative to the young. 相似文献
243.
Anselma G. Hartley Jack C. Wright Audrey L. Zakriski Catherine McCarthy 《Journal of psychopathology and behavioral assessment》2014,36(3):358-370
This research examined how people’s ability to detect behavior change in simulated child targets is affected by their clinical experience and the assessment method they use. When using summary assessment methods that are widely employed in research and clinical practice, both inexperienced and experienced clinical staff detected changes in the overall frequency of targets’ aggressive behavior, but were not uniquely influenced by changes in targets’ reactions to social events. When using contextualized assessment methods that focused on conditional reactions, experienced staff showed greater sensitivity than novices to context-specific changes in targets’ aggressive and prosocial reactions to aversive events. Experienced staff also showed greater sensitivity to context-specific changes in their overall impressions of change, but only for aggression. The findings show how clinically experienced judges become more attuned to if…then… contingencies in children’s social behavior, and how summary assessment methods may hamper the detection of change processes. 相似文献
244.
This study investigated raters' personality traits in relation to scores they assigned to offenders using the Psychopathy Checklist-Revised (PCL-R). A total of 22 participants, including graduate students and faculty members in clinical psychology programs, completed a PCL-R training session, independently scored four criminal offenders using the PCL-R, and completed a comprehensive measure of their own personality traits. A priori hypotheses specified that raters' personality traits, and their similarity to psychopathy characteristics, would relate to raters' PCL-R scoring tendencies. As hypothesized, some raters assigned consistently higher scores on the PCL-R than others, especially on PCL-R Facets 1 and 2. Also as hypothesized, raters' scoring tendencies related to their own personality traits (e.g., higher rater Agreeableness was associated with lower PCL-R Interpersonal facet scoring). Overall, findings underscore the need for future research to examine the role of evaluator characteristics on evaluation results and the need for clinical training to address evaluators' personality influences on their ostensibly objective evaluations. 相似文献
245.
Schwartz AL Galliher RV Domenech Rodríguez MM 《Cultural diversity & ethnic minority psychology》2011,17(1):116-121
Relationships among collectivism, ethnic identity, acculturation, and self-disclosure rates in Latinos' intercultural and intracultural friendships and acquaintanceships were examined. An online survey collected data from 59 international Latinos and 73 Latino American nationals. Results revealed that relationship type (friend vs. acquaintance) and relationship partner ethnicity (Latino vs. White American) had significant relationships with self-disclosure. Participants disclosed more personal information to friends than acquaintances, and they disclosed more to Latino than to White American persons. Higher collectivism was related to increased self-disclosure across all relationship types. Acculturation exerted a significant main effect only in the context of friendships but interacted significantly with ethnicity in both friendships and acquaintanceships. Ethnic identity did not display any significant direct or interaction effects. 相似文献
246.
Tluczek A Zaleski C Stachiw-Hietpas D Modaff P Adamski CR Nelson MR Reiser CA Ghate S Josephson KD 《Journal of genetic counseling》2011,20(2):115-128
This article describes the development of a tailored family-centered approach to genetic counseling following abnormal newborn
screening (NBS) for cystic fibrosis (CF). A genetic counseling consortium reviewed research literature, selected theoretical
frameworks, and incorporated counseling psychology micro skills. This innovative intervention integrated theories and empirically
validated techniques. Pilot testing and parent feedback confirmed satisfaction with and feasibility of the approach designed
to (a) minimize parents’ distress, (b) facilitate parents’ understanding, (c) increase parents’ capacities to use genetic
information, and (d) enhance parents’ experiences with genetic counseling. Counselors engage in a highly interactive process
of evaluating parents’ needs and tailoring assessments and interventions that include a therapeutic environment, the family’s
emotional needs, parents’ informational needs, and a follow-up plan. This promising new model is the first to establish a
theory-driven, evidence-based standard for genetic counseling in the context of NBS for CF. Additional research will evaluate
the model’s efficacy in clinical practice. 相似文献
247.
The choice of suicide methods varies between countries. Common methods used in Singapore between 2000 and 2004 were jumping (72.4%), hanging (16.6%), and poisoning (5.9%). Those who jumped were more likely to be young, single, female, and to have had a major mental illness. By comparison, those who hung themselves were more likely to be older (OR 2.68), Indian (OR 2.32), and to leave a suicide note (OR 1.53). Those who used poison were more likely to be married (OR 2.33), to be on antidepressants (OR 2.40), to have previously attempted suicide (OR 2.13), and to leave a letter (OR 2.30). The choice was determined by accessibility, acceptability, generational, gender, and racial factors. 相似文献
248.
Collins RL Vincent PC Bradizza CM Kubiak AJ Falco DL 《Psychology of addictive behaviors》2011,25(4):605-615
Malt liquor (ML) is a unique, high alcohol content beverage marketed to encourage heavy drinking. We developed the Malt Liquor Expectancy Questionnaire (MLEQ), a beverage-specific measure of alcohol expectancies, and examined its association with typical weekly ML use, typical weekly alcohol use, and alcohol problems. Forty positive and 40 negative expectancy items were administered to a sample of 639 young adults who regularly consumed ML. Exploratory and confirmatory factor analyses led to the development of the 30-item MLEQ. The MLEQ consists of two positive (i.e., Social Facilitation and Enjoyment, Enhanced Sexuality) and two negative factors (i.e., Aggression and Negative Consequences; Impairment and Physical Symptoms) that possess good internal consistency, test-retest reliability, and convergent validity. The psychometrically sound MLEQ contributes to the limited research on beverage-specific expectancies and heavy drinking. 相似文献
249.
The purpose of this research is to improve understanding of the consistency of the categorization process in cognitive psychology. To investigate the temporal stability of the categorization process between and within subjects, 100 participants (M = 22.1 yr., SD = 2.1) were required to sort 65 food labels into groups and to explain their grouping. The sorting and property generation of food labels were compared by conducting two sessions (with a 15-day interval) to assess within-subject variability. Two groups of participants were compared to assess between-subjects variability. The results from the sorting task showed excellent stability between and within subjects. Conversely, the property generation task showed high variability. It is concluded that the tasks involved different types of knowledge. The sorting task appeared to generate good agreement and to involve more stable knowledge. The task of producing properties may involve other mechanisms. This paper discusses the results in light of cognitive and pragmatic theories. 相似文献
250.
Thought–shape fusion (TSF) is a cognitive distortion that has been linked with eating pathology; however, the specificity of this distortion to eating disorders has not yet been examined. The current study set out to investigate the effects of a TSF induction on susceptibility to TSF in three groups of women: individuals with an eating disorder (n = 33), individuals with obsessive-compulsive disorder (OCD; n = 24), and control women with no history of either an eating disorder or obsessive-compulsive disorder (n = 26). Participants were assigned to receive either a TSF induction or a neutral induction, and their cognitive, emotional, and behavioral responses were assessed. As expected, the results demonstrated that individuals with eating disorders were more susceptible to TSF than were women with OCD and control participants, reporting higher state TSF, more negative affect, and more neutralization behavior. The results also supported the specificity of this distortion by demonstrating that individuals with OCD were not particularly susceptible to TSF. In fact, control participants demonstrated an increased susceptibility to TSF relative to women with OCD, as evidenced by their higher levels of trait TSF, and increased self-reported distress/difficulty in imagining a food-related situation. 相似文献