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231.
232.
Right-handed participants respond more quickly and more accurately to written words presented in the right visual field (RVF) than in the left visual field (LVF). Previous attempts to identify the neural basis of the RVF advantage have had limited success. Experiment 1 was a behavioral study of lateralized word naming which established that the words later used in Experiment 2 showed a reliable RVF advantage which persisted over multiple repetitions. In Experiment 2, the same words were interleaved with scrambled words and presented in the LVF and RVF to right-handed participants seated in an MEG scanner. Participants read the real words silently and responded "pattern" covertly to the scrambled words. A beamformer analysis created statistical maps of changes in oscillatory power within the brain. Those whole-brain maps revealed activation of the reading network by both LVF and RVF words. Virtual electrode analyses used the same beamforming method to reconstruct the responses to real and scrambled words in three regions of interest in both hemispheres. The middle occipital gyri showed faster and stronger responses to contralateral than to ipsilateral stimuli, with evidence of asymmetric channeling of information into the left hemisphere. The left mid fusiform gyrus at the site of the 'visual word form area' responded more strongly to RVF than to LVF words. Activity in speech-motor cortex was lateralized to the left hemisphere, and stronger to RVF than LVF words, which is interpreted as representing the proximal cause of the RVF advantage for naming written words. 相似文献
233.
Tourette Syndrome (TS) is a neuropsychiatric disorder characterized by motor and vocal tics. Tic fluctuations are common and thought to be attributable in part, to contextual variables. Stress is one such variable, but its effects and mechanism of action are poorly understood. The current study measured the effects of a stress induction task on tic frequencies during periods of suppression and non-suppression of tics. Ten youth with TS between the ages of 9 and 17 were exposed to four conditions in random sequence: free-to-tic baseline (BL), reinforced tic suppression (SUP), reinforced tic suppression plus a stress induction task (SUP + STRESS), and a stress induction task alone (STRESS). Tic frequencies did not differ during STRESS and BL. Tic frequencies were greater in SUP + STRESS than SUP. Stress may impact tics through disrupting suppression efforts. Clinically, results suggest that interventions designed to improve tic inhibition in the presence of acute stressors may be beneficial. 相似文献
234.
Hernandez AE Mattarella-Micke A Redding RW Woods EA Beilock S 《The American journal of psychology》2011,124(3):253-260
Although the age at which a skill is learned (age of acquisition [AoA]) is one of the most studied predictors of success in domains ranging from language to music, very little work has focused on this factor in sports. In order to uncover how the age at which a skill is learned relates to how athletes cognitively represent that skill, we asked a group of skilled golfers who learned to play golf before (early learners) or after (late learners) the age of 10 to take a series of putts on an indoor putting green. Golfers putted in isolation (single-task condition), while monitoring a stream of words presented over a loudspeaker (dual-task condition), or while being instructed to attend to specific aspects of their golf swing (skill-focused condition). Early and late learners putted equally well in the single-task and dual-task conditions. However, in the skill-focused condition, golfers who learned earlier performed worse than those who learned later. The results are consistent with the notion that AoA influences the manner in which sports, like other domains such as language and music, are represented in memory. 相似文献
235.
While emerging research suggests psychopathic traits and leadership behaviors may be linked, this proposition requires further empirical investigation. This study aims to examine the relationship between psychopathic traits and the Full Range Leadership Model which includes transformational, transactional, and passive leadership styles. Using a cross-sectional design, survey data was collected from 115 students who reported having management experience. Measures included the Multifactor Leadership Questionnaire and Self-Report Psychopathy Scale-Revised. A four-factor structure of psychopathy positively correlated with passive leadership behavior, namely passive-management-by-exception and laissez-faire, but negatively correlated with individual consideration. This study addresses a research need, and is one of the first to empirically examine the relationship between psychopathic traits and the Full Range Leadership Model. Theoretical and practical implications are discussed. 相似文献
236.
Sarah B. Woods Jacob B. Priest Wayne H. Denton 《The American journal of family therapy》2013,41(1):44-56
The purpose of this preliminary study is to expand research on the effects of relational processes on depression treatment outcomes. We tested whether initiator tendency, attachment anxiety, attachment avoidance, and marital satisfaction predicted improvement in depression for women with Major Depressive Disorder enrolled in a depression treatment clinical trial (n = 17). We found that higher baseline levels of partner initiator tendency resulted in less change in depression (worse outcomes), regardless of treatment type; higher baseline levels of attachment avoidance predicted better depression outcomes in treatment. Initiator tendency is discussed as a critical romantic relationship factor for depression treatment outcomes. 相似文献
237.
John Woods 《Australasian journal of philosophy》2013,91(1):103-113
‘Those ice cubes melted because by melting total entropy increased and entropy increase has a very high objective chance.’ What role does the chance in this explanation play? I argue that it contributes to the explanation by entailing that the melting was almost necessary, and defend the claim that the fact that some event was almost necessary can, in the right circumstances, constitute a causal explanation of that event. 相似文献
238.
Dominance‐based ordinal multiple regression (DOR) is designed to answer ordinal questions about relationships among ordinal variables. Only one parameter per predictor is estimated, and the number of parameters is constant for any number of outcome levels. The majority of existing simulation evaluations of DOR use predictors that are continuous or ordinal with many categories, so the performance of the method is not well understood for ordinal variables with few categories. This research evaluates DOR in simulations using three‐category ordinal variables for the outcome and predictors, with a comparison to the cumulative logits proportional odds model (POC). Although ordinary least squares (OLS) regression is inapplicable for theoretical reasons, it was also included in the simulations because of its popularity in the social sciences. Most simulation outcomes indicated that DOR performs well for variables with few categories, and is preferable to the POC for smaller samples and when the proportional odds assumption is violated. Nevertheless, confidence interval coverage for DOR was not flawless and possibilities for improvement are suggested. 相似文献
239.
Erika R. Carr Amanda M. Woods Arshya Vahabzadeh Carla Sutton Justine Wittenauer Nadine J. Kaslow 《Journal of clinical psychology in medical settings》2013,20(1):37-45
Although research has shown positive associations among post-traumatic stress disorder (PTSD), depressive symptoms, and suicidal ideation, the nature of these relations is unclear, especially in African American women. This study examined the associations among these comorbid psychological difficulties in a sample of 136 low-income, African American women. Specifically, the goal of this investigation was to ascertain if overall depressive symptoms, as well as both the cognitive-affective and somatic components of depression, mediated the PTSD-suicidal ideation link. Results from bootstrapping analyses revealed that overall depressive symptoms and the cognitive-affective components of depression, but not the somatic components, mediated the PTSD-suicidal ideation link. 相似文献
240.