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71.
Hua-Chen Wang Greg Savage M. Gareth Gaskell Tamara Paulin Serje Robidoux Anne Castles 《Psychonomic bulletin & review》2017,24(4):1186-1193
Lexical competition processes are widely viewed as the hallmark of visual word recognition, but little is known about the factors that promote their emergence. This study examined for the first time whether sleep may play a role in inducing these effects. A group of 27 participants learned novel written words, such as banara, at 8 am and were tested on their learning at 8 pm the same day (AM group), while 29 participants learned the words at 8 pm and were tested at 8 am the following day (PM group). Both groups were retested after 24 hours. Using a semantic categorization task, we showed that lexical competition effects, as indexed by slowed responses to existing neighbor words such as banana, emerged 12 h later in the PM group who had slept after learning but not in the AM group. After 24 h the competition effects were evident in both groups. These findings have important implications for theories of orthographic learning and broader neurobiological models of memory consolidation. 相似文献
72.
Martha Chamodraka Marilyn R. Fitzpatrick Jennifer Ingrid Janzen 《The journal of positive psychology》2017,12(3):232-245
AbstractResearch on the relationship of client hope to successful therapy outcome underlines the need to discover the processes and conditions when hope flourishes. Snyder’s Hope Theory has been applied to psychotherapy but client subjective experiences are needed to illuminate nuances in the process. The present study examined the trajectory of hope development in psychotherapy using interviews with 18 counseling clients, analyzed using grounded theory methodology. Findings were synthesized into a dynamic model titled hope as empowerment model (HEM) that shares features of Snyder’s Hope Theory. HEM introduces patterns of particular salience to psychotherapy. The compatibility of client preferences with therapist input raised faith in the process of counseling and, in turn, hope in a positive outcome. A number of conditions, including the flexibility of client role preferences and the directiveness of hope-inspiring therapeutic strategies, influenced the nature and strength of client hope. Implications for therapy and positive psychology are considered. 相似文献
73.
Clark L Dombrovski AY Siegle GJ Butters MA Shollenberger CL Sahakian BJ Szanto K 《Psychology and aging》2011,26(2):321-330
Suicidal behavior is a potentially lethal complication of late-life depression. In younger adults, suicide has been linked to abnormal decision-making ability. Given that there are substantial age-related decreases in decision-making ability, and that older adults experience environmental stressors that require effective decision-making, we reasoned that impaired decision-making may be particularly relevant to suicidal behavior in the elderly. We thus compared performance on a probabilistic decision-making task that does not involve working memory ("Cambridge Gamble Task") in four groups of older adults: (1) individuals with major depression and a history of suicide attempt (n = 25), (2) individuals with major depression with active suicidal ideation but no suicide attempt (n = 13), (3) individuals with major depression without suicidality (n = 35), and (4) nondepressed control subjects (n = 22). There was a significant effect of group on quality of decision-making, whereby the suicide attempters exhibited poorer ability to choose the likely outcome, compared with the nonsuicidal depressed and nondepressed comparison subjects. There were no group differences in betting behavior. The suicide attempters differed in several aspects of social problem-solving on a self-report scale. Quality of decision-making was negatively correlated with the score on the impulsive/careless problem-solving subscale. These data suggest that older suicide attempters have a deficit in risk-sensitive decision-making, extending observations in younger adults. More specifically, older suicide attempters seem to neglect outcome probability and make poor choices. These impairments may precipitate and perpetuate suicidal crisis in depressed elders. Identification of decision-making impairment in suicidal elders may help with designing effective interventions. 相似文献
74.
75.
Ichikawa N Siegle GJ Jones NP Kamishima K Thompson WK Gross JJ Ohira H 《Cognitive, affective & behavioral neuroscience》2011,11(3):354-371
This study examined neural features of emotional responses to errors. We specifically examined whether directed emotion regulation
of negative emotion associated with error modulates action-monitoring functions of anterior cingulate cortex, including conflict
monitoring, error processing, and error prevention. Seventeen healthy adults performed a continuous performance task during
assessment by fMRI. In each block, participants were asked either to increase or decrease their negative emotional responses
or to react naturally after error commission. Emotion regulation instructions were associated with modulation of rostral and
dorsal anterior activity and of their effective connectivity following errors and conflict. Cingulate activity and connectivity
predicted subsequent errors. These data may suggest that responses to errors are affected by emotion and that aspects of emotion
and cognition are inextricably linked, even during a nominally cognitive task. 相似文献
76.
Plasticity of human spatial cognition: spatial language and cognition covary across cultures 总被引:1,自引:0,他引:1
The present paper explores cross-cultural variation in spatial cognition by comparing spatial reconstruction tasks by Dutch and Namibian elementary school children. These two communities differ in the way they predominantly express spatial relations in language. Four experiments investigate cognitive strategy preferences across different levels of task-complexity and instruction. Data show a correlation between dominant linguistic spatial frames of reference and performance patterns in non-linguistic spatial memory tasks. This correlation is shown to be stable across an increase of complexity in the spatial array. When instructed to use their respective non-habitual cognitive strategy, participants were not easily able to switch between strategies and their attempts to do so impaired their performance. These results indicate a difference not only in preference but also in competence and suggest that spatial language and non-linguistic preferences and competences in spatial cognition are systematically aligned across human populations. 相似文献
77.
Kendra L. Marvin John T. Rapp Michelle T. Stenske Nairim R. Rojas Greg J. Swanson Sara M. Bartlett 《Behavioral Interventions》2010,25(2):109-127
We evaluated the effects of response repetition (RR) as an error‐correction procedure for increasing sight‐word reading for four individuals using a multiple baseline design. The results for each participant showed that correct responding increased following the introduction of the RR procedure. In addition, responding for three of four participants showed evidence of stimulus generalization, response generalization, or both. Likewise, we found that comparable behavior changes were produced when a participant's paraprofessional implemented RR in a typical classroom. These findings are briefly discussed in terms of procedures that promote behavior acquisition and generalization via negative reinforcement. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
78.
Neil P. Jones Greg J. Siegle Emilie R. Muelly Agnes Haggerty Frank Ghinassi 《Cognitive, affective & behavioral neuroscience》2010,10(1):129-140
Depressed people perform poorly on cognitive tasks. It is unclear whether these deficits are due to decreased devotion of
task-related resources or to increased attention to non-task-related information. In the present study, we examined the degree
to which depressed and healthy adults displayed pupillary motility that varied at the frequency of presented stimuli on a
cognitive task, which we interpreted as task-related processing, and at other frequencies, which we interpreted as reflecting
intrinsic processing. Depressed participants made more consecutive errors than did controls. More pupillary motility at other
frequencies was associated with poorer performance, whereas more pupillary motility at the frequency of presented stimuli
was associated with better performance. Depressed participants had more pupillary motility at other frequencies, which partially
mediated observed deficits in cognitive performance. These findings support the hypothesis that allocating cognitive resources
to intrinsic processing contributes to observed cognitive deficits in depression. 相似文献
79.
Christoph Teufel Dean M. Alexis Nicola S. Clayton Greg Davis 《Attention, perception & psychophysics》2010,72(3):695-705
When presented with a face stimulus whose gaze is diverted, observers’ attention shifts to locations fixated by the face. Such “gaze following” has been characterized by some previous studies as a consequence of sophisticated theory of mind processes, but by others (particularly those employing the “gaze-cuing” paradigm) as an involuntary response that is triggered directly and reflexively by the physical features of a face. To address this apparent contradiction, we modified the gaze-cuing paradigm using a deception procedure to convince observers that prerecorded videos of an experimenter making head turns and wearing mirrored goggles were a “live” video link to an adjacent room. In two experiments, reflexive gaze following was found when observers believed that the model was wearing transparent goggles and could see, but it was significantly reduced when they believed that the experimenter wore opaque goggles and could not see. These results indicate that the attribution of the mental state “seeing” to a face plays a role in controlling even reflexive gaze following. 相似文献
80.