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111.
In the present experiment, we used search asymmetry to test whether the sustained attention to response task is a better measure of response inhibition or sustained attention. Participants performed feature present and feature absent target detection tasks using either a sustained attention to response task (SART; high Go low No-Go) or a traditionally formatted task (TFT; high No-Go low Go) response format. In addition to performance, we employed functional near infrared spectroscopy (fNIRS) to measure lateral cerebral oxygenation levels and self-reports of Tense Arousal, Energetic Arousal, task related and unrelated thoughts occurring during the tasks. Detections were lower and reaction times longer in the feature absent search than the feature present search regardless of response format. Detections were lower, but reaction times shorter in the SART than the TFT regardless of feature search. Greater right than left frontal hemisphere activation occurred in the SART than the TFT. In addition, the SART was more fatiguing based on self-reports than the TFT, but there were no differences in Task-Unrelated Thoughts across task conditions. Overall, the results suggest the SART places high response inhibition, not necessarily sustained attention, demands on participants. 相似文献
112.
The Trail-Making Test (TMT) is a widely used neuropsychological measure that assesses visuomotor abilities and cognitive flexibility. For the TMT-A condition participants are required to locate and connect numbers (i.e. 1-2-3…) while in the TMT-B condition participants perform the set-shifting task of locating and connecting numbers and letters (i.e. 1-A-2-B…). The TMT-B condition has shown impairments in many clinical populations, particularly schizophrenia patients, but the neurobiological underpinning of the task can be difficult to discern given pragmatic obstacles in adapting the task for neuroimaging. In a behavioural testing experiment we demonstrated a close correspondence between performance on the standard TMT and a novel, computer programmed adaptation of the TMT (pcTMT). The pcTMT was designed for functional magnetic resonance imaging (fMRI) administration and neuroimaging data for this task were obtained in. A whole brain analysis revealed significantly greater activation during the pcTMT-B relative to the pcTMT-A in right inferior/middle frontal cortices, right precentral gyrus, left angular gyrus/left middle temporal gyrus. These results identify the regions that most likely underlie cognitive flexibility during the TMT and are candidate regions underlying the impairment of groups with poor set-shifting abilities. 相似文献
113.
Galen Joseph Mary S. Beattie Robin Lee Dejana Braithwaite Carolina Wilcox Maya Metrikin Kate Lamvik Judith Luce 《Journal of genetic counseling》2010,19(5):447-462
The Cancer Risk Education Intervention Tool (CREdIT) is a computer-based (non-interactive) slide presentation designed to educate low-literacy, and ethnically and racially diverse
public hospital patients at risk of Hereditary Breast and Ovarian Cancer (HBOC) about genetics. To qualitatively evaluate
participants’ experience with and perceptions of a genetic education program as an adjunct to genetic counseling, we conducted
direct observations of the intervention, semi-structured in person interviews with 11 women who viewed CREdIT, and post-counseling
questionnaires with the two participating genetic counselors. Five themes emerged from the analysis of interviews: (1) genetic
counseling and testing for breast/ovarian cancer was a new concept; (2) CREdIT’s story format was particularly appealing;
(3) changes in participants’ perceived risk for breast cancer varied; (4) some misunderstandings about individual risk and
heredity persisted after CREdIT and counseling; (5) the context for viewing CREdIT shaped responses to the presentation. Observations
demonstrated ways to make the information provided in CREdIT and by genetic counselors more consistent. In a post-session
counselor questionnaire, counselors’ rating of the patient’s preparedness before the session was significantly higher for
patients who viewed CREdIT prior to their appointments than for other patients. This novel educational tool fills a gap in
HBOC education by tailoring information to women of lower literacy and diverse ethnic/racial backgrounds. The tool was well
received by interview participants and counselors alike. Further study is needed to examine the varied effects of CREdIT on
risk perception. In addition, the implementation of CREdIT in diverse clinical settings and the cultural adaptation of CREdIT
to specific populations reflect important areas for future work. 相似文献
114.
The current study was conducted to test the premise that computer-based intervention that targets auditory temporal processing combined with language exercises (Fast ForWord) is effective in remediating children with disorders of language and reading. Sixty-five middle school struggling readers were randomly assigned to one of five groups and over a 12-week-period received one of the following interventions: (1) two phases of intervention with Fast ForWord (FFW, experimental group), (2) two phases of intervention with SuccessMaker (SM, active control group), (3) FFW followed by SM, (4) SM followed by FFW, or (5) no intervention beyond the regular class curriculum (developmental control group). Changes in reading, phonemic awareness, spelling and language skills were assessed via a repeated measures MANOVA. Results indicated significant within-subjects effects (i.e., change for all participants over time), but no between-subject group differences, failing to show that Fast ForWord resulted in any gains over and above those seen in the other groups. 相似文献
115.
116.
Allan Hugh Cole Jr. 《Pastoral Psychology》2009,58(5-6):531-549
This essay posits a relationship between male melancholia, defined as a complicated form of grief that resists compensatory consolation, and experiences of identity-loss. I draw especially from pastoral psychologist Donald Capps’s views on male melancholia. Concurring with Capps’s claim that melancholic men seek relief from melancholia in religion, I also draw from the psychology of Erik H. Erikson to add this emphasis: that both the roots of melancholia and subsequent experiences of melancholic loss link with experiences of perceived threats to or loss of one’s identity. I also suggest how religious rituals may ameliorate melancholia. 相似文献
117.
On many occasions, the perception of an object is based on incomplete information because portions of the object are occluded from view. Nevertheless, people are able to identify an occluded object, suggesting that the identification is mediated by the activation of completion processes which “fill in” the missing information. Although these completion processes are invoked as causal mechanisms for many phenomena, the processes mediating the “completion” have not been specified. The present experiments tested two potential explanations for closure processes. In each experiment, participants were presented with pictures, complete or incomplete in form, and, on a surprise source-monitoring task, they were then asked to remember whether pictures had been presented complete or incomplete in form. Whether viewing pictures of objects, faces, or camouflaged objects, participants showed a pronounced tendency to claim that incomplete pictures were actually presented complete in form. This bias was evident after the participants described functions for objects (Experiments 1, 1A, and 2), after they evaluated properties of faces (Experiment 4), and after they searched for objects hidden in a complex scene (Experiment 5). However, this bias was not evident after they simply named objects portrayed in pictures (Experiment 3). This bias is interpreted as evidence for the activation of implicit imaginal processing. The results of these experiments are informative in their contribution to our understanding of the bases of closure, an intuitively appealing notion frequently invoked to account for object identification, but, as yet, not fully understood. 相似文献
118.
Hugh J. Silverman 《Man and World》1984,17(3-4):347-359
119.
Hugh Jenkins 《Journal of Family Therapy》1983,5(3):359-377
The view presented in this paper is that frameworks are needed to help understand the nature of the organization and problems of severely underorganized families. Some basic propositions are suggested as a ‘rule of thumb’ diagnostic tool. Requirements for healthy development are outlined, against which the family context of many underorganized families is illustrated. It is proposed that the life-cycle framework of such families is essentially ‘two generational’. This has implications for those offering help in these situations, and suggestions are made about appropriate treatment approaches. 相似文献
120.
Hugh J. Foley David V. Cross Mary Ann Foley Richard Reeder 《Attention, perception & psychophysics》1983,34(6):505-512
Three different stimulus modalities (line length, number, and sound pressure) were judged by magnitude scaling techniques and by 7-, 15-, 31-, and 75-point category scales. All of the 40 subjects were given the same number stimuli, but two different sound-pressure ranges were presented (each to 20 subjects) and four different line-length ranges were presented (each to 10 subjects). Analyses of lack of fit for various simple functions were performed to determine bestfitting functions. The simple power function was often found to be an adequate fit to the data for all the response modalities used, although all of the response modalities were sensitive to changes in stimulus range. For simple power functions, the category-scale exponent was a function of both the range of stimuli and the number of categories provided. Category scales did not always produce exponents smaller than those obtained with magnitude estimation, which calls into question the concept of a virtual exponent for category scales. 相似文献