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281.
ABSTRACT— Although early research implicated the amygdala in automatic processing of negative information, more recent research suggests that it plays a more general role in processing the motivational relevance of various stimuli, suggesting that the relation between valence and amygdala activation may depend on contextual goals. This study provides experimental evidence that the relation between valence and amygdala activity is dynamically modulated by evaluative goals. During functional magnetic resonance imaging, participants evaluated the positive, negative, or overall (positive plus negative) aspects of famous people. When participants were providing overall evaluations, both positive and negative names were associated with amygdala activation. When they were evaluating positivity, positive names were associated with amygdala activity, and when they were evaluating negativity, negative names were associated with amygdala activity. Evidence for a negativity bias was found; modulation was more pronounced for positive than for negative information. These data suggest that the amygdala flexibly processes motivationally relevant evaluative information in accordance with current processing goals, but processes negative information less flexibly than positive information. 相似文献
282.
Sara A. Stevens Greg L. West Naseem Al-Aidroos Ulrich W. Weger Jay Pratt 《Psychonomic bulletin & review》2008,15(6):1148-1153
It has been suggested that two types of uninformative central cues produce reflexive orienting: gaze and arrow cues. Using
the criterion that voluntary shifts of attention facilitate both response speed and perceptual accuracy, whereas reflexive
shifts of attention facilitate only response speed (Prinzmetal, McCool, & Park, 2005), we tested whether these cues produce
reflexive or volitional shifts of attention. A cued letter discrimination task was used with both gaze (Experiments 1A and
1B) and arrow (Experiments 2A and 2B) cues, in which participants responded to the identity of the target letter. In the response
time (respond speed) tasks, participants were asked to respond as quickly as possible to the target; in the accuracy (perceptual
quality) tasks, participants were asked to respond as accurately as possible. For both cue types, compatible cues were found
to facilitate response speed but not perceptual accuracy, indicating that both gaze and arrow cues generate reflexive shifts
in attention. 相似文献
283.
The attentional repulsion effect refers to the perceived displacement of a visual stimulus in a direction that is opposite to a brief peripheral cue. If the spatial repulsion brought about by peripheral cues is in fact attentional in nature, then attentional manipulations that produce known effects on reaction time should have analogous spatial repulsions effects. Across three experiments, we show that the attentional repulsion effect does indeed mimic results obtained from temporal (i.e., reaction time) attentional tasks, including single onset, offset and onset-offset cue displays (Experiment 1), simultaneous onset and offset displays (Experiment 2), and pop-out color displays (Experiment 3). Thus, the attentional repulsion effect can be modulated by attentional manipulations. Moreover, it appears that attentional processes underlying changes related to when targets are perceived appear to be the same as those underlying changes related to perceiving where targets are. 相似文献
284.
People remember emotional and taboo words better than neutral words. It is well known that words that are processed at a deep (i.e., semantic) level are recalled better than words processed at a shallow (i.e., purely visual) level. To determine how depth of processing influences recall of emotional and taboo words, a levels of processing paradigm was used. Whether this effect holds for emotional and taboo words has not been previously investigated. Two experiments demonstrated that taboo and emotional words benefit less from deep processing than do neutral words. This is consistent with the proposal that memories for taboo and emotional words are a function of the arousal level they evoke, even under shallow encoding conditions. Recall was higher for taboo words, even when taboo words were cued to be recalled after neutral and emotional words. The superiority of taboo word recall is consistent with cognitive neuroscience and brain imaging research. 相似文献
285.
Inhibition of return in single and dual tasks: examining saccadic, keypress, and pointing responses 总被引:1,自引:0,他引:1
Two experiments are reported in which inhibition of return (IOR)was examined wit h single-responsetasks (either manual responses alone or saccadic responses alone) and dual-response tasks (simultaneous manual and saccadic responses). The first experiment-using guided limb movements that require considerable spatial information-showed more IOR for saccades than for pointing responses. In addition, saccadic IOR was reduced with concurrent pointing movements, but manual IOR was not affected by concurrent saccades. Importantly, at the time of saccade initiation, the arm movements did not start yet, indicating that the influence on saccade IOR is due to arm-movement preparation. In the second experiment, using localization keypress responses that required only minimal spatial information, greater IOR was again found for saccadic than for manual responses, but no effect of concurrent movements was found. These findings add further support that there is a dissociation between oculomotor and skeletal-motor IOR. Moreover, the results show that the preparation manual responses tend to mediate saccadic behavior-but only when the manual responses require high levels of spatial accuracy-and that the superior colliculus is the likely neural substrate integrating IOR for eye and arm movements. 相似文献
286.
Authors described four distinct conceptualizations of the construct of attachment and identified clinical implications associated with each. Three of the conceptualizations, which are influenced by the work of Bowlby and Ainsworth, seem to have some empirical support; these conceptualizations are compatible with systemic and social constructionist approaches to family therapy. The other conceptualization— Reactive Attachment Disorder (RAD)—contradicts the extensive body of literature associated with the Bowlby/Ainsworth traditions and tends to pathologize children. Therefore, family therapists interested in attachment are encouraged to maintain conceptual clarity in their clinical work and are further encouraged to rely on clinical conceptualizations and interventions that are consistent with the work of Bowlby and Ainsworth. 相似文献
287.
DeAnna L. Mori Jennifer F. Lambert Barbara L. Niles Jay D. Orlander Maureen Grace Joseph S. LoCastro 《Journal of clinical psychology in medical settings》2003,10(3):187-192
Despite the prevalence of psychiatric disorders in medical settings, mental health problems often go undetected and patients do not receive appropriate treatment. The main goal of this study is to provide additional information about the Beck Anxiety Inventory – Primary Care (BAI–PC), a brief instrument that screens for patients with anxiety. This study provides information on the performance of the BAI–PC as a screening instrument for depression and PTSD in addition to its original purpose as a screening instrument for anxiety. This efficient tool can identify patients who can benefit from effective psychological treatments and facilitate referrals to psychologists working in medical settings. 相似文献
288.
Bryan Myers Steven Jay Lynn Jack Arbuthnot 《Journal of applied social psychology》2002,32(11):2393-2412
Victim impact testimony (i.e., testimony concerning the harmful consequences on the victim's surviving family) was examined to determine its effect on the sentencing judgments of mock jurors. Undergraduate students (N= 293) watched a videotaped murder trial simulation, rendered verdicts, and made sentencing judgments. During the penalty phase of the trial, participants were either given no victim impact testimony, or they were given victim impact testimony that varied both the severity of the harm information (mild harm/ severe harm) and the demeanor of the witness (low affect/high affect). The results indicate that information concerning the harm experienced by the victim's relatives, not the affective demeanor of the witness, influenced sentencing judgments. Implications for the U.S. Supreme Court decision in Payne v. Tennessee (1991) are discussed. 相似文献
289.
Matthew L. Dixon Justin Ruppel Jay Pratt Eve De Rosa 《Psychonomic bulletin & review》2009,16(2):418-423
We examined whether the selection mechanisms committed to the suppression of ignored stimuli can be modified by experience
to produce a sustained, rather than transient, change in behavior. Subjects repeatedly ignored the shape of stimuli, while
attending to their color. On subsequent attention to shape, there was a robust and sustained decrement in performance that
was selective to when shape was ignored across multiple-colortarget contexts, relative to a single-color-target context. Thus,
amount of time ignored was not sufficient to induce a sustained performance decrement. Moreover, in this group, individual
differences in initial color target selection were associated with the subsequent performance decrement when attending to
previously ignored stimuli. Accompanying this sustained decrement in performance was a transfer in the locus of suppression
from an exemplar (e.g., a circle) to a feature (i.e., shape) level of representation. These data suggest that learning can
influence attentional selection by sustained attentional suppression of ignored stimuli. 相似文献
290.