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301.
In an experiment measuring event-related brain potentials (ERPs), single-letter targets were preceded by briefly presented
masked letter primes. Name and case consistency were manipulated across primes and targets so that the prime was either the
same letter as the target (or not), and was presented in the same case as the target (or not). Separate analyses were performed
for letters whose upper- and lowercase forms had similar features (or not). The results revealed an effect of prime-target
visual similarity between 120 and 180 msec, an effect of case-specific letter identity between 180 and 220 msec, and an effect
of case-independent letter identity between 220 and 300 msec. We argue that these ERP results reflect processing in a hierarchical
system for letter recognition that involves both case-specific and case-independent representations of alphabetic stimuli. 相似文献
302.
Automatic activation of attachment-related goals 总被引:3,自引:0,他引:3
Gillath O Mikulincer M Fitzsimons GM Shaver PR Schachner DA Bargh JA 《Personality & social psychology bulletin》2006,32(10):1375-1388
When people encounter threats, their attachment systems are activated and they become motivated to seek protection and support through proximity to their attachment figures. Theoretically, therefore, mental representations of attachment figures should be associated with goals related to attaining proximity and safety. The present studies explore this idea by examining the effects of a person's chronic attachment style and exposure to a particular attachment figure's name on the automatic activation of attachment-related goals. Studies 1 and 2 examine effects of exposure to the name of a security-providing attachment figure on willingness to self-disclose and seek support (two behaviors related to gaining proximity). Study 3 examines how exposure to names of different relationship partners (with whom a participant has felt secure, anxious, or avoidant) affects the mental accessibility of attachment-related goal words. Taken together, the studies support the idea that mental representations of attachment figures are associated with attachment-related goals. 相似文献
303.
Antiepileptic drugs (AEDs) have diverse psychotropic profiles. Some AEDs have proven to be efficacious in the treatment of mood disorders, especially bipolar disorder. Others are ineffective as primary treatments but may be useful adjuncts for mood disorders or comorbid conditions. Valproate (acute mania and mixed episodes), carbamazepine (acute mania and mixed episodes), and lamotrigine (maintenance to delay recurrence) have United States Food and Drug Administration indications for the treatment of bipolar disorder. This article provides an overview of data on the use of AEDs in bipolar disorder, including acute mania and depression, prophylaxis, and rapid cycling. 相似文献
304.
Ackerman PL 《The American psychologist》2006,61(7):722-3; discussion 725-6
305.
Event-related potentials to critical verbs were measured as patients with schizophrenia and healthy controls read sentences word by word. Relative to their preceding context, critical verbs were (a) congruous, (b) incongruous and semantically unrelated to individual preceding words (pragmatic-semantic violations), (c) incongruous but semantically related to individual preceding words (animacy-semantic violations), or (d) syntactically anomalous. The N400 was modulated normally in patients, suggesting that semantic integration between individual words within sentences was normal in schizophrenia. The amplitude of the P600 to both syntactic and animacy-semantic violations was reduced in patients relative to controls. The authors suggest that, in schizophrenia, an abnormality in combining semantic and syntactic information online to build up propositional meaning leaves sentence processing to be primarily driven by semantic relationships between individual words. 相似文献
306.
Wilder DA Chen L Atwell J Pritchard J Weinstein P 《Journal of applied behavior analysis》2006,39(1):103-107
A brief functional analysis was used to examine the influence of termination of prechange activities and initiation of postchange activitieson tantrums exhibited by 2 preschool children. For 1 participant, tantrums were maintained by access to certain (pretransition) activities. For a 2nd participant, tantrums were maintained by avoidance of certain task initiations. Although advance notice of an upcoming transition was ineffective, differential reinforcement of other behavior plus extinction reduced tantrums for both participants. 相似文献
307.
Incremental validity of the typical intellectual engagement scale as predictor of different academic performance measures 总被引:1,自引:0,他引:1
The incremental validity of the Typical Intellectual Engagement (TIE) scale (Goff & Ackerman, 1992) as a predictor of academic performance (AP) was tested over and above other established determinants of AP, namely, psychometric g (as extracted from 5 cognitive ability tests) and the Big Five personality traits, assessed by the Neuroticism-Extraversion-Openness Five Factor Inventory (Costa & McCrae, 1992). One hundred four British students were tested on arrival to university, and AP measures were collected longitudinally throughout a 3-year period. TIE, g, and Conscientiousness were the highest correlates of AP. A series of multiple-hierarchical regressions showed that TIE had significant incremental validity (over and above g and the Big Five) in the prediction of AP. Implications are discussed in light of the investment theory of intellectual competence and the utility of self-report inventories as predictors of academic achievement. 相似文献
308.
Heitman RJ Vicory JR Kovaleski JE Pugh SF Norell PM 《Perceptual and motor skills》2006,102(1):171-174
The relations among year of eligibility, sex, and achievement motivation were investigated with 88 athletes representing three levels of collegiate eligibility (Year 1, Year 2/3, and Year 4) by sex. Participants were given Achievement Motivation subscales for Sporting Environments (approach-success practice, approach-success competition, failure-avoidance practice, failure-avoidance competition). A 3 x 2 analysis of variance showed significant main effects for year of eligibility and sex, and an interaction for age x sex for the failure-avoidance competition scores. Mean approach-success and failure-avoidance practice scores were not significantly different. Fear of failure may be less for male athletes in Year 4 of eligibility. 相似文献
309.
The psychometric properties of the Beck Depression Inventory-II (BDI-II) are well established with primarily Caucasian samples. However, little is known about its reliability and validity with minority groups. This study evaluated the psychometric properties of the BDI-II in a sample of low-income African American medical outpatients (N=220). Reliability was demonstrated with high internal consistency (.90) and good item-total intercorrelations. Criterion-related validity was demonstrated. A confirmatory factor analysis supported a hierarchical factor structure in which the BDI-II reflected 2 first-order factors (Cognitive and Somatic) that in turn reflected a second-order factor (Depression). These results are consistent with previous findings and thus support the use of the BDI-II in assessing depressive symptoms for African American patients in a medical setting. 相似文献
310.
Perceived movement of a stationary visual stimulus during head motion was measured before and after adaptation intervals during which participants performed voluntary head oscillations while viewing a moving spot. During these intervals, participants viewed the spot stimulus moving alternately in the same direction as the head was moving during either .25- or 2.0-Hz oscillations, and then in the opposite direction as the head at the other of the two frequencies. Postadaptation measures indicated that the visual stimuli were perceived as stationary only if traveling in the same direction as that viewed during adaptation at the same frequency of head motion. Thus, opposite directions of spot motion were perceived as stationary following adaptation depending on head movement frequency. The results provide an example of the ability to establish dual (or “context-specific”) adaptations to altered visual—vestibular feedback. 相似文献