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131.
Two studies of psychiatric morbidity among motor vehicle accident survivors 1 year after the crash 总被引:2,自引:0,他引:2
Blanchard EB Hickling EJ Freidenberg BM Malta LS Kuhn E Sykes MA 《Behaviour research and therapy》2004,42(5):569-583
We assessed the psychiatric co-morbidity associated with chronic posttraumatic stress disorder (PTSD) (1-2 years) secondary to personal injury motor vehicle accidents (MVAs) in two studies. In Study 1, we compared the results of SCID assessments for 75 treatment-seeking MVA survivors (51 with PTSD and 24 with symptoms but no PTSD). In Study 2, we compared similar results among 132 MVA survivors who had been followed prospectively for 12+ months after their accidents (19 with PTSD, 32 who had PTSD but who had remitted, and 81 who never met criteria for PTSD). We found comparable levels of current co-morbid major depression (53%), any mood disorder (62-68%), generalized anxiety disorder (26%) and any anxiety disorder (42%) for both groups of participants with chronic PTSD. These rates of co-morbidity were higher than those found in non-PTSD comparison groups with similar MVA histories. 相似文献
132.
Barch DM Mitropoulou V Harvey PD New AS Silverman JM Siever LJ 《Journal of abnormal psychology》2004,113(4):556-568
Research suggests that schizotypal personality disorder (SPD) is a part of the spectrum of schizophrenia-related illnesses. This article hypothesizes that a deficit in the representation and maintenance of context is a core cognitive disturbance in schizophrenia and that SPD individuals should demonstrate context-processing deficits. To test this hypothesis, the authors administered 3 versions of their AX-CPT task, designed to assess context processing, to 35 healthy controls and 26 individuals with DSM-IV SPD. They also administered working memory and selective attention tasks. SPD individuals displayed context representation deficits similar to those found in schizophrenia but did not show the same additional deficits in context maintenance. Context processing was strongly associated with working memory and selective attention performance in the SPD individuals. 相似文献
133.
Topic—vehicle interaction in metaphor comprehension 总被引:2,自引:0,他引:2
Property comparison models of metaphor comprehension assume that the topic and vehicle terms in metaphors are both understood to be referring to their conventional literal referents. In contrast, the interactive property attribution model (Glucksberg, McGlone, & Manfredi, 1997) assumes that the vehicle is understood to be referring to a metaphoric category that includes the topic's literal referent as a member. A priming paradigm was used to test the implications of these different models. Prior to interpreting a metaphor, participants read (1) the topic or vehicle concept alone, (2) a sentence ascribing a metaphor-relevant property to one concept, or (3) a sentence ascribing a metaphor-irrelevant property to one concept. All of the prime types facilitated metaphor comprehension with the exception of sentences ascribing metaphor-irrelevant properties to vehicles. The failure of these sentences (but not their topic counterparts) to facilitate metaphor comprehension is attributable to their priming an inappropriate literal interpretation of the vehicle term. These results are consistent with the claim that irrelevant information is suppressed during language comprehension (Gernsbacher, 1990) and support the interactive property attribution model. 相似文献
134.
Marie Camerota Michael T. Willoughby Laura J. Kuhn Clancy B. Blair 《Child neuropsychology》2018,24(3):322-337
This study tests the factor structure, measurement invariance, and correlates of the Childhood Executive Functioning Inventory (CHEXI) with a large and diverse sample of 3- to 5-year-olds (n = 844). Consistent with previous studies, a two-factor model that distinguishes working memory from inhibition provides the best fit to the observed data. This two-factor model has been shown to demonstrate strong measurement invariance for different subgroups of children (boys vs. girls, high vs. low income). Whereas boys tend to have greater working memory and inhibition difficulties (Cohen’s d = 0.15 and 0.20, respectively), children from low-income households tend to have more working memory problems than their peers from high-income households (Cohen’s d = 0.25). Finally, correlations between CHEXI scores, examiner reports of child behavior, and child performance on a battery of executive function (EF) tasks were investigated. CHEXI scores were found to be more consistently related to examiner reports of child behavior than child performance on EF tasks. Tthe strengths and weaknesses of the CHEXI as a questionnaire measure of EF are discussed, and directions for future research are suggested. 相似文献
135.
136.
Pilar Lopez-Garcia Tyler A. Lesh Taylor Salo Deanna M. Barch Angus W. MacDonaldIII James M. Gold J. Daniel Ragland Milton Strauss Steven M. Silverstein Cameron S. Carter 《Cognitive, affective & behavioral neuroscience》2016,16(1):164-175
Goal maintenance is an aspect of cognitive control that has been identified as critical for understanding psychopathology according to criteria of the NIMH-sponsored CNTRICS (Cognitive Neuroscience Treatment Research to Improve Cognition in Schizophrenia) and Research Domain Criteria (RDoC) initiatives. CNTRICS proposed the expectancy AX-CPT, and its visual-spatial parallel the dot probe expectancy (DPX), as valid measures of the cognitive and neural processes thought to be relevant for goal maintenance. The goal of this study was to specifically examine the functional neural correlates and connectivity patterns of both goal maintenance tasks in the same subset of subjects to further validate their neural construct validity and clarify our understanding of the nature and function of the neural circuitry engaged by the tasks. Twenty-six healthy control subjects performed both the letter (AX) and dot pattern (DPX) variants of the CPT during fMRI. Behavioral performance was similar between tasks. The 2 tasks engaged the same brain networks including dorsolateral prefrontal cortex (DLPFC) and dorsal parietal regions, supporting their validity as complementary measures of the goal maintenance construct. Interestingly there was greater engagement of the frontal opercular insula region during the expectancy AX-CPT (letter) and greater functional connectivity between the PFC and medial temporal lobe in the DPX (dot pattern). These differences are consistent with differential recruitment of phonological and visual-spatial processes by the two tasks and suggest that additional long-term memory systems may be engaged by the dot probe version. 相似文献
137.
Research shows that individuals with schizophrenia report symptoms of anhedonia when assessed by interview or questionnaire. However, when presented with emotional stimuli, they report emotional experiences that are similar to those of control participants. The authors hypothesized that deficits in working memory and episodic memory contribute to such discrepancies. They administered measures of working and episodic memory, self-report anhedonia questionnaires, and several types of emotional stimuli to 49 individuals with schizophrenia and 47 control participants. All participants reported experiencing similar amounts of pleasant-unpleasant emotion (valence) in response to stimuli, but individuals with schizophrenia reported experiencing less arousal for negative stimuli. Individuals with schizophrenia also reported greater social and physical anhedonia on a traditional anhedonia questionnaire. Disturbances in working memory moderated the relationship between physical anhedonia and participants' emotional experience of positive stimuli. 相似文献
138.
Deanna J. Greene Eric Mooshagian Jonas T. Kaplan Eran Zaidel Marco Iacoboni 《Psychological research》2009,73(4):499-511
Previous evidence suggests that directional social cues (e.g., eye gaze) cause automatic shifts in attention toward gaze direction.
It has been proposed that automatic attentional orienting driven by social cues (social orienting) involves a different neural
network from automatic orienting driven by nonsocial cues. However, previous neuroimaging studies on social orienting have
only compared gaze cues to symbolic cues, which typically engage top-down mechanisms. Therefore, we directly compared the
neural activity involved in social orienting to that involved in purely automatic nonsocial orienting. Twenty participants
performed a spatial cueing task consisting of social (gaze) cues and automatic nonsocial (peripheral squares) cues presented
at short and long stimulus (cue-to-target) onset asynchronies (SOA), while undergoing fMRI. Behaviorally, a facilitation effect
was found for both cue types at the short SOA, while an inhibitory effect (inhibition of return: IOR) was found only for nonsocial
cues at the long SOA. Imaging results demonstrated that social and nonsocial cues recruited a largely overlapping fronto-parietal
network. In addition, social cueing evoked greater activity in occipito-temporal regions at both SOAs, while nonsocial cueing
recruited greater subcortical activity, but only for the long SOA (when IOR was found). A control experiment, including central
arrow cues, confirmed that the occipito-temporal activity was at least in part due to the social nature of the cue and not
simply to the location of presentation (central vs. peripheral). These results suggest an evolutionary trajectory for automatic
orienting, from predominantly subcortical mechanisms for nonsocial orienting to predominantly cortical mechanisms for social
orienting. 相似文献
139.
In two experiments, we investigated whether people are better or worse at updating memory for the location of emotional pictures
than of neutral pictures. We measured participants’ memories for the locations of both arousing negative pictures and neutral
pictures while manipulating practice (encountering the same event repeatedly) and interference (encountering the same picture
in a different location). Memory for the context of emotional items was less likely to be corrected when erroneous and was
less likely to be correctly updated when the context changed. These results suggest that initial item-context binding is more
tenacious for emotional items than for neutral items, even when such binding is incorrect. 相似文献
140.
Four hundred fifty‐two employed persons rated the frequency with which they had been the victims of a wide range of aggressive actions at work. In addition, they also rated the frequency with which they themselves had aggressed against others in their workplaces. Three hypotheses were investigated: (1) covert forms of aggression, in which aggressors seek to conceal their identity from target persons, are significantly more frequent in workplaces than overt forms of aggression; (2) the greater the perceived injustice reported by employees, the greater their tendency to engage in workplace aggression; and (3) the higher individuals' scores on a measure of the Type A Behavior Pattern, the greater their reported frequency of engaging in various forms of workplace aggression. Results offered support for all three hypotheses. In addition, several demographic variables (participants' age and gender; the physical location of their workplaces) were also found to play a role in the occurrence of workplace aggression. Together, these findings were interpreted as underscoring the importance of establishing close conceptual links between research on workplace aggression and basic research on human aggression. Aggr. Behav. 25:281–296, 1999. © 1999 Wiley‐Liss, Inc. 相似文献