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221.
Wills Andy J. Edmunds Charlotte E. R. Le Pelley Mike E. Milton Fraser Newell Ben R. Dwyer Dominic M. Shanks David R. 《Psychonomic bulletin & review》2019,26(6):1988-1993
Psychonomic Bulletin & Review - Smith and Church (Psychonomic Bulletin & Review, 25, 1565–1584 2018) present a “testimonial” review of dissociable learning processes... 相似文献
222.
Justin M. Nelson Chandler A. Phillips R. Andy McKinley Lindsey K. McIntire Chuck Goodyear Lanie Monforton 《Military psychology》2019,31(3):212-226
Multitasking is the ability to perform more than one task simultaneously. The need to multitask is common in many industries especially within the military with tasks such as air traffic controllers, cyber defense operators and image analysts. However, as the time on task increases, information throughput can become overwhelming resulting in a performance decrement. Through task prioritizing, the operator is able to maintain performance on specific subtasks in which they selected as high importance while other subtasks experience a decrement. The objective of this study was to evaluate the effects of transcranial direct current stimulation (tDCS) applied to the left dorsolateral prefrontal cortex (ldLPFC) on information processing capabilities to improve individual and overall multitasking performance while performing the multi-attribute task battery (MATB). Two groups of 8 participants each received either 2 mA of anodal or sham tDCS while performing MATB. In addition, eye tracking was implemented to record eye movement patterns. In doing so, we were able to determine how much time the operator allocated to each of the subtasks within MATB and how their task priorities changed as workload demands increased. The findings provided evidence that 2 mA of anodal tDCS during MATB significantly improved overall information throughput compared to the sham group. With respect to the individual subtasks, communication and system monitoring displayed the greatest enhancement with anodal tDCS. Our data suggests that tDCS could be a useful tool to enhance information processing capabilities during a multitasking paradigm resulting in improved processing capabilities and information throughput. 相似文献
223.
Recent research has shown that the verbal information pathway to fear creates long-term fear cognitions and can create cognitive biases and avoidance in children. However, the interaction between the verbal information pathway to fear and other pathways is untested. This experiment exposed children (aged 6–8) to threat information about a novel animal to see the impact on a measure of avoidance after a subsequent simulated direct negative encounter with that animal. Results showed that a direct negative experience (without prior information) or threat information (without a subsequent negative experience) produced similar effects, but in combination (verbal threat information followed by a direct negative experience) the effect was significantly magnified. These results support theories of fear acquisition that suppose that verbal information impacts on the strength of associations formed in subsequent conditioning episodes, and suggest that pathways to fear have interactive effects. 相似文献
224.
Investigation of individual inmates' characteristics are almost entirely absent from research of prison riots. The current study sought to fill this void using official infraction records and prison dossiers of 831 male inmates selected from the southwestern USA. Logistic regression models indicated that inmates who were cited for criminal infractions, such as theft, possession of weapons or drugs, threatening staff, and social risk factors were significantly more likely to engage in prison rioting. In fact, the model which contained criminal career, demographic information, infraction, and other social risk factors explained 40% of the variation in prison rioting. Suggestions for research on prison riots that included inmates' criminal history and characteristics of infraction are offered. 相似文献
225.
Cochrane A Barnes-Holmes D Barnes-Holmes Y Stewart I Luciano C 《Behaviour research and therapy》2007,45(6):1379-1388
In Experiment 1, participants high (n=15) or low in avoidance (n=14), as measured by the Acceptance and Action Questionnaire, completed a simple matching task that required them to choose whether or not to look at an aversive visual image. Only the high-avoidance participants took longer to emit a correct response that produced an aversive rather than a neutral picture. Additionally, the high-avoiders reported greater levels of anxiety following the experiment even though they rated the aversive images as less unpleasant and less emotionally arousing than their low-avoidant counterparts. In Experiment 2, three groups, representing high-, mid- and low-avoidance (n=6 in each) repeated the matching task with the additional recording of event-related potentials (ERPs). The findings of Experiment 1 were replicated in terms of reaction times and subjective ratings. The ERPs confirmed that the participants attended to the content of the images and differentiated between the aversive and neutral image types. The ERPs also showed significantly greater negativity for electrodes over the left hemisphere relative to the midline for only the high-experiential avoidance (EA) group. Given the left hemisphere dominance for language, the data suggest that the high-EA group engaged in verbal strategies to regulate their emotional responses. 相似文献
226.
227.
Phillips BA Gaudette S McCracken A Razzaq S Sutton K Speed L Thompson J Ward W 《Journal of clinical psychology in medical settings》2012,19(3):277-284
The aim of this study was to investigate the psychosocial differences among obese pediatric patients, particularly those who are "extremely obese" as compared to "obese." Information was collected for 249 subjects at a multidisciplinary treatment clinic for obese youth. A battery of measures was administered and demographic data and height/weight was obtained. The results showed positive correlations between degree of obesity, psychosocial functioning, and quality of life. Specifically, the "extremely obese" were significantly more depressed, more socially anxious, and had poorer quality of life than the "obese" group. Girls and Caucasians were more socially anxious than boys and African Americans, respectively. There is mounting evidence that children and adolescents who are extremely obese are most at risk for psychiatric and medical disorders. Thus, targeting this group for assessment and/or designing treatment options specific for "extremely obese" youth is critical for the successful management of this population. 相似文献
228.
229.
Orlando J. Andy W. Nicholas C. Dearman 《Integrative psychological & behavioral science》1995,30(2):157-168
A 32-year-old woman was bedridden for a year because of chronic pain and headaches. She had insomnia, depression, suicidal thoughts and a severe chemical allergy. She had been on steroid therapy for two years and became Cushingoid with striae in the arm pits, groins and abdomen. However, she had no hypertension, nor the buffalo fat and hirsutism. She was very edematous, with a weight gain from 112 to 180 lbs. The fluid retention did not conform to the syndrome of inappropriate antidiuretic hormone. Studies revealed abnormal scalp EEG discharges and high-voltage seizure discharges in the posterior thalamus. Electrothalamic stimulation suppressed the thalamic discharges and relieved the patient’s pelvic pain and headaches. After one month of several thalamic stimulations per day, she was able to get out of bed and ambulate. In addition, the patient no longer was edematous and was tolerating perfumes and floor detergents. Steroids were progressively reduced without complications of withdrawal. She went from a completely steroid dependent state to independent during the first 1-1/2 yrs of thalamic stimulation. With continued thalamic stimulation she has done well for 8-1/2 yrs, weighs 112 lbs, keeps house and drives a car. It’s speculated the illness is a chronic pain multiple system syndrome predominantly due to mesothalamic discharges and body infirmities. The mesothalamic discharge implicated neural networks, which represent biologic systems, i.e. pain, sleep, fluid retention, etc. Therapeutic stimulation attenuates the discharges and the neural networks return to their normal set points of homeostasis. 相似文献
230.
Unitization, the creation of new stimulus features by the fusion of preexisting features, is one of the hypothesized processes
of perceptual learning (Goldstone Annual Review of Psychology, 49:585–612, 1998). Some argue that unitization occurs to the extent that it is required for successful task performance (e.g., Shiffrin &
Lightfoot, 1997), while others argue that unitization is largely independent of functionality (e.g., McLaren & Mackintosh Animal Learning
& Behavior, 30:177–200, 2000). Across three experiments, employing supervised category learning and unsupervised exposure, we investigated three predictions
of the McLaren and Mackintosh (Animal Learning & Behavior, 30:177–200, 2000) model: (1) Unitization is accompanied by an initial increase in the subjective similarity of stimuli sharing a unitized
component; (2) unitization of a configuration occurs through exposure to its components, even when the task does not require
it; (3) as unitization approaches completion, salience of the unitized component may be reduced. Our data supported these
predictions. We also found that unitization is associated with increases in overt attention to the unitized component, as
measured through eye tracking. 相似文献