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81.
A crucial question in cognitive science is how linguistic and visual information are integrated. Previous research has shown that eye movements to objects in the visual environment are locked to linguistic input. More surprisingly, listeners fixate on now-empty regions that had previously been occupied by relevant objects. This 'looking at nothing' phenomenon has been linked to the claim that the visual system constructs sparse representations of the external world and relies on saccades and fixations to extract information in a just-in-time manner. Our model provides a different explanation: based on recent work in visual cognition and memory, it assumes that the visual system creates and stores detailed internal memory representations, and that looking at nothing facilitates retrieval of those representations. 相似文献
82.
Vicente González‐Romá Lina Fortes‐Ferreira José M. Peiró 《Journal of Occupational & Organizational Psychology》2009,82(3):511-536
We tested the hypothesis that the relationship between team climate and team performance is moderated by climate strength. The study sample was composed of 155 bank branches, and a two‐wave panel design was implemented. We measured four team climate facets (support, innovation, goal achievement and enabling formalization). We obtained two subjective indicators of team performance (ratings provided by team members and by team managers) and a financial indicator of team performance. Seven out of the 12 interaction effects tested were statistically significant and showed the expected sign. When financial team performance was the criterion, only the interaction term was significant. This suggests that only strong climates are related to financial team performance over time. 相似文献
83.
ENSEMBLE RECORDINGS IN AWAKE RATS: ACHIEVING BEHAVIORAL REGULARITY DURING MULTIMODAL STIMULUS PROCESSING AND DISCRIMINATIVE LEARNING
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Eunjeong Lee Ana I. Oliveira‐Ferreira Ed de Water Hans Gerritsen Mattijs C. Bakker Jan A. W. Kalwij Tjerk van Goudoever Wietze H. Buster Cyriel M. A. Pennartz 《Journal of the experimental analysis of behavior》2009,92(1):113-129
To meet an increasing need to examine the neurophysiological underpinnings of behavior in rats, we developed a behavioral system for studying sensory processing, attention and discrimination learning in rats while recording firing patterns of neurons in one or more brain areas of interest. Because neuronal activity is sensitive to variations in behavior which may confound the identification of neural correlates, a specific aim of the study was to allow rats to sample sensory stimuli under conditions of strong behavioral regularity. Our behavioral system allows multimodal stimulus presentation and is coupled to modules for delivering reinforcement, simultaneous monitoring of behavior and recording of ensembles of well isolated single neurons. Using training protocols for simple and compound discrimination, we validated the behavioral system with a group of 4 rats. Within these tasks, a majority of medial prefrontal neurons showed significant firing‐rate changes correlated to one or more trial events that could not be explained from significant variation in head position. Thus, ensemble recordings can be combined with discriminative learning tasks under conditions of strong behavioral regularity. 相似文献
84.
Priming Sentence Production in Adolescents and Adults with Attention-Deficit/Hyper-Activity Disorder
Paul E. Engelhardt Fernanda Ferreira Joel T. Nigg 《Journal of abnormal child psychology》2009,37(7):995-1006
Theoretical accounts of attention-deficit/hyperactivity disorder (ADHD) posit a prominent role for problems in response inhibition
(Nigg 2006). A key avenue for impulsivity in children with ADHD is inappropriate language expression. In this study, we sought to determine
whether poor inhibitory control affects language production in adolescents and adults with ADHD. One hundred and ninety-five
participants (13–35 years old; 65% male) were presented with two pictures and a verb, and their task was to form a sentence.
If deficits in response inhibition affect language production, then participants with ADHD should be more likely than non-ADHD
controls to begin speaking before having formulated a plan that will allow a grammatical continuation. The results showed
that the ADHD-combined subtype, in particular, was more likely to produce an ungrammatical sequence. Effects were not moderated
by age or gender. These data suggest that response suppression deficits in ADHD adversely affect the basic processes of sentence
formation. 相似文献
85.
Kátia Tanaka Antonio Carlos de Quadros Jr. Ruth Ferreira Santos Florindo Stella Lilian Teresa Bucken Gobbi Sebastião Gobbi 《Brain and cognition》2009
The benefits of physical exercise on cognitive functioning have been reported in the literature, but the potential benefits to slow the eventual decline in executive functioning (EF) caused by neurodegeneration from Parkinson’s Disease (PD) have rarely been studied. Thus the objective of this study was to analyze the effects of a multimodal physical exercise program on EF in older people with Parkinson’s disease. The EF of the older people was evaluated by neuropsychological testing, and for confounding variables such as attention, depressive symptoms and anxiety, before and after intervention. The 20 participants were assigned into Control (CG) and Trained (TG) Groups. The TG participated in generalized physical training for 6 months. The ANOVA showed a significant interaction (p < .05) that indicated a beneficial contribution of training on EF. No significant interactions were found in the results for confounding variables between groups and pre- and post-intervention, which supports the beneficial findings of physical exercise training on EF. 相似文献
86.
Cutting JC Ferreira VS 《Journal of experimental psychology. Learning, memory, and cognition》1999,25(2):318-344
When speakers produce words, lexical access proceeds through semantic and phonological levels of processing. If phonological processing begins based on partial semantic information, processing is cascaded; otherwise, it is discrete. In standard models of lexical access, semantically processed words exert phonological effects only if processing is cascaded. In 3 experiments, speakers named pictures of objects with homophone names (ball), while auditory distractor words were heard beginning 150 ms prior to picture onset. Distractors speeded picture naming (compared with controls) only when related to the nondepicted meaning of the picture (e.g., dance), exhibiting an early phonological effect, thereby supporting the cascaded prediction. Distractors slowed picture naming when categorically (e.g., frisbee) related to the depicted picture meaning, but not when associatively (e.g., game) related to it. An interactive activation model is presented. 相似文献
87.
A Ferreira S Hansen 《Journal of comparative psychology (Washington, D.C. : 1983)》1986,100(2):173-177
Female rats become aggressive toward adult conspecifics during lactation. This change in social affect is dependent on the presence of the offspring, because maternal aggression disappears when the pups are removed. It was found that a similar decline occurs when the litter is placed in a glass flask while remaining in the home cage. In contrast, maternal aggression persists following placement of the pups in a nylon mesh bag. The pups did not vocalize while being in the mesh bags, so it appears that olfactory cues from the offspring constitute a critical element in the maintenance of maternal aggression in the rat. It has been suggested that the odor not only of the pups but also of the intruder may contribute to eliciting aggressive behavior in lactating rodents. In line with this proposal, it was found that mother rats spend about one third of the time preceding the first attack sniffing the body of the intruder. In contrast to findings in mice, housing of the prospective intruder behind a double wire mesh partition in the lactating female's home cage failed to reduce her aggressiveness toward him. Rats, then, may require more intimate contact with an individual than do mice for the aggression-reducing effect of familiarization to be observed. 相似文献
88.
Ferreira De Macedo MB 《Feminism & psychology》1996,6(3):381-399
This article examines gendered work-health relationships among female factory workers in Rio Tinto, a textile factory town in Brazil. The author draws on her own and her parents' experiences as factory workers and as residents of Rio Tinto. In addition, she gathered research during 1982-86 and 1988-93, interviewing 30 female and 12 male workers. Findings from 1924-58 and 1959-91 indicate that the family structure and work process were interlinked. Self-images are construed to be the intersection of social relations of sex and class, psychopathology, and the concept of work positions. Gendered relations are a social construction, and awareness of these relations is based on a hierarchy and form of power based on a gendered division of labor. Gendered relations arise out of a specific historical context. Social practices reflect the relationship between sexual division of labor and gendered social relations, their modalities, shape, and periodization. The work-health relationship is expressed in the gendered technical organization of work, the gendered socialization of work, and domestic labor. The period of 1917-58 reflects the capitalist influences. When women became wage earners, their management of household tasks was changed. Men took over the heavy tasks, and women performed tasks that required skill and patience. Work-related health impacts, such as deformed knees or severed fingers, and accidents varied with the task. Women adapted to work conditions. During the 1940s, female workers refused to join the collective protests of men for better wages and conditions. The dream of progress faded by 1964. After 1959, new gendered relations of production and reproduction emerged. Labor laws were passed; new machines were introduced. During 1965-70, the health issues were headaches, irritability, and anxiety. 1970-91 brought a hollowness of spirit and the search for an explanation for the violence they had experienced. 相似文献
89.
90.