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Irene A. Kuling Willem J. de Bruijne Kimberley Burgering Eli Brenner Jeroen B. J. Smeets 《Journal of motor behavior》2013,45(5):572-579
People make systematic errors when matching the location of an unseen index finger with that of a visual target. These errors are consistent over time, but idiosyncratic and surprisingly task-specific. The errors that are made when moving the unseen index finger to a visual target are not consistent with the errors when moving a visual target to the unseen index finger. To test whether such inconsistencies arise because a large part of the matching errors originate during movement execution, we compared errors in moving the unseen finger to a target with biases in deciding which of two visual targets was closer to the index finger before the movement. We found that the judgment as to which is the closest target was consistent with the matching errors. This means that inconsistencies in visuo-proprioceptive matching errors are not caused by systematic errors in movement execution, but are likely to be related to biases in sensory transformations. 相似文献
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《Quarterly journal of experimental psychology (2006)》2013,66(8):1473-1483
Viewers are typically better at remembering faces from their own race than from other races; however, it is not yet established whether this effect is due to memorial or perceptual processes. In this study, UK and Egyptian viewers were given a simultaneous face-matching task, in which the target faces were presented upright or upside down. As with previous research using face memory tasks, participants were worse at matching other-race faces than own-race faces and showed a stronger face inversion effect for own-race faces. However, subjects' performance on own and other-race faces was highly correlated. These data provide strong evidence that difficulty in perceptual encoding of unfamiliar faces contributes substantially to the other-race effect and that accounts based entirely on memory cannot capture the full data. Implications for forensic settings are also discussed. 相似文献
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Implementation intentions planning in advance the situation in which one will act, have been proposed to be an effective self-regulatory technique for changing health behaviour. Encouraging people to receive text message reminders of their implementation intentions should enhance their strength and, thus, it was predicted that this combined approach would be particularly effective in increasing exercise. Participants (N = 155) were randomly allocated to one of five conditions (implementation intentions and SMS, implementation intention, SMS or one of two control groups) then completed self-report measures of exercise behaviour and motivation. Four weeks later, they responded to similar items. Results suggested that the combined intervention increased exercise frequency significantly more than the other strategies including the implementation intention group. It is proposed, therefore, that implementation intention effects can be enhanced via plan reminders. 相似文献
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Mary E. Jung Kathleen A. Martin Ginis Stuart M. Phillips Carolyn D. Lordon 《Psychology & health》2013,28(5):531-547
Background: Adequate calcium consumption during early adulthood can help prevent osteoporosis in women. Purpose: The effects of gain-framed, targeted messaging on calcium intake were examined over 12 months. Methods: Young women (18–19 years) not consuming sufficient calcium were randomly assigned to receive standard care materials (control) or gain-framed, targeted materials (experimental). Health belief model (HBM) constructs, calcium intake and markers of bone formation, resorption and bone mineral density were assessed at various time points throughout the year. Results: Calcium intake increased significantly more in the experimental versus the control condition (p?<?0.01). Self-efficacy was the only HBM construct to improve significantly more in the experimental condition versus control (p?=?0.05). The HBM did not mediate changes in calcium intake. Measures of bone health did not differ between conditions by the end of this nonpharmacological intervention (p's?>?0.05). Conclusions: It is possible to increase young women's calcium consumption through gain-framed, targeted messages. 相似文献
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《Revue Européene de Psychologie Appliquée》2015,65(4):171-177
IntroductionClinical trials are considered as the most useful methods to evaluate the efficacy of new medical treatments, but the participation of healthy individuals is often too small, which limits the statistical power of the trial and hence its effectiveness.ObjectiveThe goal of the present research is to assess, for the first time, the effects of message framing (gain versus loss) and of the nature of the illness targeted by a clinical trial (highly- versus mildly-contagious) on individuals’ intention to enter it.MethodsThe experimental manipulation is carried out within a scenario promoting a clinical trial, in a 2 (framing: gain vs loss) × 2 (nature of the illness: highly- vs mildly-contagious) between-participants design. After reading the scenario, participants were asked to rate their intention to enter the trial and their perception of its utility.ResultsStatistical analyses validated a causal model explaining that a gain-framed message describing a highly-contagious illness increases the perception of the utility of the clinical trial, which in turn enhances the intention to participate.ConclusionThe discussion mainly focuses on the contributions of these findings at a theoretical level, considering the limits and potential of their possible application. 相似文献
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Behavioral pharmacology of the odor span task: Effects of flunitrazepam,ketamine, methamphetamine and methylphenidate 下载免费PDF全文
Mark Galizio Brooke April Melissa Deal Andrew Hawkey Danielle Panoz‐Brown Ashley Prichard Katherine Bruce 《Journal of the experimental analysis of behavior》2016,106(3):173-194
The Odor Span Task is an incrementing non‐matching‐to‐sample procedure that permits the study of behavior under the control of multiple stimuli. Rats are exposed to a series of odor stimuli and selection of new stimuli is reinforced. Successful performance thus requires remembering which stimuli have previously been presented during a given session. This procedure has been frequently used in neurobiological studies as a rodent model of working memory; however, only a few studies have examined the effects of drugs on performance in this task. The present experiments explored the behavioral pharmacology of a modified version of the Odor Span Task by determining the effects of stimulant drugs methylphenidate and methamphetamine, NMDA antagonist ketamine, and positive GABAA modulator flunitrazepam. All four drugs produced dose‐dependent impairment of performances on the Odor Span Task, but for methylphenidate and methamphetamine, these occurred only at doses that had similar effects on performance of a simple odor discrimination. Generally, these disruptions were based on omission of responding at the effective doses. The effects of ketamine and flunitrazepam were more selective in some rats. That is, some rats tested under flunitrazepam and ketamine showed decreases in accuracy on the Odor Span Task at doses that did not affect simple discrimination performance. These selective effects indicate disruption of within‐session stimulus control. Overall, these findings support the potential of the Odor Span Task as a baseline for the behavioral pharmacological analysis of remembering. 相似文献