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971.
Anna Thorwart Metin Uengoer Evan J. Livesey Justin A. Harris 《Quarterly journal of experimental psychology (2006)》2017,70(7):1366-1379
Participants in two human goal-tracking experiments were simultaneously trained with negative patterning (NP) and positive patterning (PP) discriminations (A+, B+, AB–, C–, D–, CD+). Both elemental and configural models of associative learning predict a PP advantage, such that NP is solved less readily than PP. However, elemental models like the unique cue approach additionally predict responding in AB– trials to be initially stronger than that in A+ and B+ trials due to summation of associative strength. Both experiments revealed a PP advantage and a strong summation effect in AB– trials in the first half of the experiments, irrespective of whether the same US was used for both discriminations (Experiment 1) or two different USs (Experiment 2). We discuss that the correct predictions of the unique cue approach are based on its assumptions of non-normalized and context-independent stimulus processing rather than elemental processing per se. 相似文献
972.
Anna Antosz 《Journal of Cognitive Psychology》2017,29(2):151-168
In this study, we investigated whether processing of an ambiguous task was influenced by the emotional properties of words or promotion of a specific mindset. Words used differed in valence and origin of an affective state (derived “from heart” or “from mind”). Mindset was manipulated by suggesting that either fast or slow performance was associated with cleverness and then having participants perform a task requiring the “smart” processing strategy. The ambiguous task was to choose which of 2 Far East hexagrams better represented a previously presented target word. Reaction latencies were measured and appeared to be longer for ambiguous task probes involving words of reflective origin rather than automatic or unspecified origin. Promotion of heuristic thinking was associated with shorter responses latencies than promotion of systematic or neutral processing. The study demonstrated that the processing mode may be promoted by means of both emotional and cognitive manipulations and each of them is working in a specific way. 相似文献
973.
Construal of the self as independent or interdependent in relation to others has been found to correlate significantly with social anxiety symptom ratings, raising concerns about possible cultural bias in these measures for Asian Americans. To investigate the validity of self-reported social anxiety symptoms, we examined the role of ethnicity in the associations among social anxiety, self-construal, and adaptive social functioning in a sample of 229 Asian- and European American college students. Results revealed that ethnicity moderated the relationship between self-construal and social anxiety such that interdependent self-construal was associated with higher social anxiety only for first generation Asian Americans. However, there were no significant ethnic differences in the associations between social anxiety self-reports and several measures of social functioning. 相似文献
974.
In adults, the onset of coherent motion compared to random motion in a random dot kinematogram leads to a right hemispheric amplitude advantage of the N2 response. The source of this asymmetry is believed to lie in the motion selective MT+ cortex. Here, we tested whether the right tempo-parietal N2 component shows a similar regularity in children. In particular, we were interested in whether coherent vs. incoherent motion modulates the amplitude of N2 similarly in dyslexic and control children. We found higher N2 amplitude for coherent compared to random motion in the right hemisphere for controls but not for dyslexics. This effect was related to topographical differences of N2 amplitude for random motion between the studied groups and was accompanied by longer reaction times to random motion in dyslexic compared to control children. Furthermore, a negative correlation between the amplitude of N2 for random motion and spelling errors was observed in both groups, which is consistent with previous findings linking the magnocellular-dorsal (MD) pathway with orthographic skills. These data support the hypothesis of subtle deficiencies in the MD pathway in dyslexia. 相似文献
975.
Anna C. Phillips 《Social and Personality Psychology Compass》2011,5(9):621-633
Interdisciplinary work between psychologists and immunologists has shown that factors like stress could be the trigger that leads to the development of a bout of illness. By studying the response to vaccination, we can examine immune function in the context of the rest of the body in a clinically meaningful way. This technique has been used to demonstrate consistent relationships between stress and the response to influenza vaccination and other vaccines, as well as links between other factors, such as social support and personality, and vaccination‐induced protection against disease. There are several ways the vaccination response can be used to understand more about how stress influences immunity. In addition, specific types of stress and other factors that influence our immune response appear to differ across different populations, which emphasises the importance of taking a life course approach to studying these relationships. 相似文献
976.
Silton RL Heller W Engels AS Towers DN Spielberg JM Edgar JC Sass SM Stewart JL Sutton BP Banich MT Miller GA 《Journal of abnormal psychology》2011,120(2):272-285
A network consisting of left dorsolateral prefrontal cortex (LDLPFC) and dorsal anterior cingulate cortex (dACC) has been implicated in top-down attentional control. Few studies have systematically investigated how this network is altered in psychopathology, despite evidence that depression and anxiety are associated with attentional control impairments. Functional MRI and dense-array event-related brain potential (ERP) data were collected in separate sessions from 100 participants during a color-word Stroop task. Functional MRI results guided ERP source modeling to characterize the time course of activity in LDLPFC (300-440 ms) and dACC (520-680 ms). At low levels of depression, LDLPFC activity was indirectly related to Stroop interference and only via dACC activity. In contrast, at high levels of depression, dACC did not play an intervening role, and increased LDLPFC activity was directly related to decreased Stroop interference. Specific to high levels of anxious apprehension, higher dACC activity was related to more Stroop interference. Results indicate that depression and anxious apprehension modulate temporally and functionally distinct aspects of the frontocingulate network involved in top-down attention control. 相似文献
977.
978.
Stone A 《Perceptual and motor skills》2011,112(2):451-476
Two experiments are reported using a 1986 version of the dot-probe paradigm of MacLeod, Mathews, and Tata, in which the masked subliminal faces of famous persons were differentially associated with attention depending on participants' attitudes toward the famous person. There was attentional avoidance of the faces of persons invoking high disgust (Exp. 1, n=20) or dislike (Exp. 2) but attentional orientation toward the faces of persons invoking low disgust or liking. In Exp. 2 (n=28), this effect was apparent for the faces but not the names of famous persons, despite evidence that the famous names were recognised without awareness. The aversion of attention from faces, but not the names of famous persons who are regarded in a negative light but who are not particularly threatening, may suggest an automatic tendency to avoid making eye contact with an undesirable person thereby avoiding unwanted social interaction. 相似文献
979.
980.
Multitasking among three or more different tasks is a ubiquitous requirement of everyday cognition, yet rarely is it addressed
in research on healthy adults who have had no specific training in multitasking skills. Participants completed a set of diverse
subtasks within a simulated shopping mall and office environment, the Edinburgh Virtual Errands Test (EVET). The aim was to
investigate how different cognitive functions, such as planning, retrospective and prospective memory, and visuospatial and
verbal working memory, contribute to everyday multitasking. Subtasks were chosen to be diverse, and predictions were derived
from a statistical model of everyday multitasking impairments associated with frontal-lobe lesions (Burgess, Veitch, de Lacy
Costello, & Shallice, 2000b). Multiple regression indicated significant independent contributions from measures of retrospective memory, visuospatial
working memory, and online planning, but not from independent measures of prospective memory or verbal working memory. Structural
equation modelling showed that the best fit to the data arose from three underlying constructs, with Memory and Planning having
a weak link, but with both having a strong directional pathway to an Intent construct that reflected implementation of intentions.
Participants who followed their preprepared plan achieved higher scores than those who altered their plan during multitask
performance. This was true regardless of whether the plan was efficient or poor. These results substantially develop and extend
the Burgess et al. (2000b) model to healthy adults and yield new insight into the poorly understood area of everyday multitasking. The findings also
point to the utility of using virtual environments for investigating this form of complex human cognition. 相似文献