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631.
The experiment undertaken was designed to elucidate the impact of model skill level on observational learning processes. The task was bimanual circle tracing with a 90° relative phase lead of one hand over the other hand. Observer groups watched videos of either an instruction model, a discovery model, or a skilled model. The instruction and skilled model always performed the task with the same movement strategy, the right-arm traced clockwise and the left-arm counterclockwise around circle templates with the right-arm leading. The discovery model used several movement strategies (tracing-direction/hand-lead) during practice. Observation of the instruction and skilled model provided a significant benefit compared to the discovery model when performing the 90° relative phase pattern in a post-observation test. The observers of the discovery model had significant room for improvement and benefited from post-observation practice of the 90° pattern. The benefit of a model is found in the consistency with which that model uses the same movement strategy, and not within the skill level of the model. It is the consistency in strategy modeled that allows observers to develop an abstract perceptual representation of the task that can be implemented into a coordinated action. Theoretically, the results show that movement strategy information (relative motion direction, hand lead) and relative phase information can be detected through visual perception processes and be successfully mapped to outgoing motor commands within an observational learning context.  相似文献   
632.
The aim of this work was to investigate perceived loudness change in response to melodies that increase (up-ramp) or decrease (down-ramp) in acoustic intensity, and the interaction with other musical factors such as melodic contour, tempo, and tonality (tonal/atonal). A within-subjects design manipulated direction of linear intensity change (up-ramp, down-ramp), melodic contour (ascending, descending), tempo, and tonality, using single ramp trials and paired ramp trials, where single up-ramps and down-ramps were assembled to create continuous up-ramp/down-ramp or down-ramp/up-ramp pairs. Twenty-nine (Exp 1) and thirty-six (Exp 2) participants rated loudness continuously in response to trials with monophonic 13-note piano melodies lasting either 6.4 s or 12 s. Linear correlation coefficients > .89 between loudness and time show that time-series loudness responses to dynamic up-ramp and down-ramp melodies are essentially linear across all melodies. Therefore, ‘indirect’ loudness change derived from the difference in loudness at the beginning and end points of the continuous response was calculated. Down-ramps were perceived to change significantly more in loudness than up-ramps in both tonalities and at a relatively slow tempo. Loudness change was also greater for down-ramps presented with a congruent descending melodic contour, relative to an incongruent pairing (down-ramp and ascending melodic contour). No differential effect of intensity ramp/melodic contour congruency was observed for up-ramps. In paired ramp trials assessing the possible impact of ramp context, loudness change in response to up-ramps was significantly greater when preceded by down-ramps, than when not preceded by another ramp. Ramp context did not affect down-ramp perception. The contribution to the fields of music perception and psychoacoustics are discussed in the context of real-time perception of music, principles of music composition, and performance of musical dynamics.  相似文献   
633.
This scoping review considered the role of chaplains with regard to ‘moral injury’. Moral injury is gaining increasing notoriety. This is due to greater recognition that trauma (in its various forms) can cause much deeper inflictions and afflictions than just physiological or psychological harm, for there may also be wounds affecting the ‘soul’ that are far more difficult to heal—if at all. As part of a larger research program exploring moral injury, a scoping review of literature and other resources was implemented utilising Arksey and O’Malley’s scoping method (Int J Soc Res Methodol 8(1):19–32, 2005) to focus upon moral injury, spirituality (including religion) and chaplaincy. Of the total number of articles and/or resources noting the term ‘moral injury’ in relation to spiritual/religious issues (n = 482), the results revealed 60 resources that specifically noted moral injury and chaplains (or other similar bestowed title). The majority of these resources were clearly positive about the role (or the potential role) of chaplains with regard to mental health issues and/or moral injury. The World Health Organization International Classification of Diseases: Australian Modification of Health Interventions to the International Statistical Classification of Diseases and related Health problems (10th revision, vol 3—WHO ICD-10-AM, Geneva, 2002), was utilised as a coding framework to classify and identify distinct chaplaincy roles and interventions with regard to assisting people with moral injury. Several recommendations are made concerning moral injury and chaplaincy, most particularly the need for greater research to be conducted.  相似文献   
634.
Individuals tend to be very bad at predicting their emotional responses to future events, often overestimating both the intensity and duration of their responses, particularly to negative events. The authors studied affective forecasting errors in the 2008 election in a large sample of undergraduates at Dartmouth College. Replicating past research, McCain supporters overpredicted their negative affect in response to the (future) election of Barack Obama. Obama supporters, however, underpredicted their happiness in response to his victory. Results are discussed with reference to mechanisms proposed to underlie the impact bias, as well as the unique circumstances surrounding this historic election season.  相似文献   
635.
A large body of research has been devoted to the study of family-of-origin (FOO) experience influences on future relationship outcomes and processes. In addition, substantial information exists regarding the role relationship attributions play in connection with relationship quality and stability. Yet, limited information has been forthcoming regarding how the FOO experience has an influence on attributions made in romantic relationships. Structural Equation Modeling (SEM) was employed to assess the impact of the FOO experience on attributions made about one’s own communication and personality variables, as well as the communication and personality variables of one’s partner from a sample of individuals who had completed the RELATionship Evaluation (N = 6,649). Results show evidence of a relationship between the FOO experience and the attributions made about oneself and one’s partner. Results were particularly pronounced for the communication variables. Gender differences also were found. The utility of study findings for couple and family researchers and practitioners is discussed.  相似文献   
636.
Psychological distress states have been related to rate of disease progression among HIV-positive individuals. However, the measures that have been used in this research as well as the treatment context of the populations studied are highly variable, making it challenging for clinicians to incorporate such measures into screening batteries. The present study examined the association of two summary scales of the Millon Behavioral Medicine Diagnostic (MBMD; Millon et al., Millon Behavioral Medicine Diagnostic. NCS Assessments, Minneapolis, 2001), with markers of HIV disease status (CD4 and CD8 cell counts, viral load) among an ethnically diverse sample of 147 HIV-positive individuals (52 men who have sex with men, 34 men who have sex with women, and 51 women) who had recently initiated Highly Active Antiretroviral Therapy (HAART). After controlling for age and months since HIV diagnosis, we found that higher scores on the overall MBMD Psych Referral Summary Scale, reflecting a need for mental health treatment, were related to greater HIV viral load but did not relate to CD4 or CD8 cell counts. Subgroup analyses revealed that Psych Referral scores were related to greater HIV viral load only for the men who have sex with men (MSM) subgroup. These results suggest that the MBMD may help in identifying psychosocial characteristics associated with some markers of disease status in persons with HIV and perhaps may also be useful in identifying individual differences in response to treatment and eventual disease outcome.  相似文献   
637.
This study examined the relationship between late adolescent nonsuicidal self-injury (NSSI) and coping style, self-esteem, and personality pathology. Participants were 302 late adolescent (18-19-year-old) college students who completed questionnaires on self-esteem, coping style, personality disorder symptoms, and NSSI. Participants who engaged in NSSI reported more personality pathology, more maladaptive coping styles, less rational coping, and lower self-esteem than did non self-harming participants. As hypothesized, total NSSI correlated with several personality disorders, emotional coping style, and inversely related to self-esteem and adaptive coping styles. Regression equations tested several mediation models to determine whether self-esteem or coping style mediates the relationship between personality disorder symptoms and NSSI. Emotional coping and self-esteem each fully mediated the relationship between various personality disorders and NSSI in the anticipated direction. Results also indicate self-esteem, rational, detached, and emotional coping partially mediate the relationship between several personality disorders and NSSI.  相似文献   
638.
Passionate love is associated with increased activity in dopamine-rich regions of the brain. Increased dopamine in these regions is associated with a greater tendency to learn from reward in trial-and-error learning tasks. This study examined the prediction that individuals who were newly in love would be better at responding to reward (positive feedback). In test trials, people who were newly in love selected positive outcomes significantly more often than their single (not in love) counterparts but were no better at the task overall. This suggests that people who are newly in love show a bias toward responding to positive feedback, which may reflect a general bias towards reward-seeking.  相似文献   
639.
We examined the experiences, perceptions, and values that are brought to bear when individuals from different ethnic and cultural backgrounds consider participating in health research. Fifty-three women from Latino, Asian American, Middle Eastern, or Non-Latino, White backgrounds participated in seven English or Spanish focus groups facilitated by trained investigators using a standard protocol. Investigators described the National Children’s Study (NCS) and then asked questions to elicit potential concerns, expectations, and informational needs. Group sessions were audio-recorded, transcribed verbatim, and analyzed using qualitative thematic methods. A major theme that emerged during focus groups was participant self-identification as a member of a cultural group or community when raising issues that would influence their decision to participate in research. A related theme was the belief by some that communities may differ in the ease of participation in the NCS. Identified themes related to the informed consent process included perceived risks, anticipated burden, perceived benefits, informational needs, and decision-making strategies. Although themes were shared across groups, there were cultural differences within themes. Findings indicated that individuals from diverse backgrounds may have different perspectives on and expectations for the research process. To effectively recruit representative samples, it will be important to address a range of issues relevant for informed consent and to consider the impact of participation on both individuals and communities.  相似文献   
640.
Classic cognitive theory conceptualizes executive functions as involving multiple specific domains, including initiation, inhibition, working memory, flexibility, planning, and vigilance. Lesion and neuroimaging experiments over the past two decades have suggested that both common and unique processes contribute to executive functions during higher cognition. It has been suggested that a superordinate fronto–cingulo–parietal network supporting cognitive control may also underlie a range of distinct executive functions. To test this hypothesis in the largest sample to date, we used quantitative meta-analytic methods to analyze 193 functional neuroimaging studies of 2,832 healthy individuals, ages 18–60, in which performance on executive function measures was contrasted with an active control condition. A common pattern of activation was observed in the prefrontal, dorsal anterior cingulate, and parietal cortices across executive function domains, supporting the idea that executive functions are supported by a superordinate cognitive control network. However, domain-specific analyses showed some variation in the recruitment of anterior prefrontal cortex, anterior and midcingulate regions, and unique subcortical regions such as the basal ganglia and cerebellum. These results are consistent with the existence of a superordinate cognitive control network in the brain, involving dorsolateral prefrontal, anterior cingulate, and parietal cortices, that supports a broad range of executive functions.  相似文献   
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