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101.
102.
Mild cognitive impairment (MCI) is a heterogeneous condition characterized by the presence in an otherwise healthy elderly
individual of cognitive deficits involving specific domains in the absence of significant functional impairments. Reports
indicate that prospective memory (PM), that is, the ability to remember to execute delayed intentions, is impaired in individuals
with MCI. The present review discusses the current debate in the literature on PM functioning in MCI by focusing on the relationship
between prospective retrieval and retrospective memory functioning. Analysis of the reported evidence revealed that both the
prospective component and the retrospective component of PM can be impaired in MCI. Declarative memory dysfunction may account
for the retrospective memory impairment, while either reduced executive abilities or a deficit of reflexive mechanisms could
explain the prospective component impairment. 相似文献
103.
This article describes a method of moral counselling developed in the Radboud University Medical Centre Nijmegen (The Netherlands). The authors apply insights of Paul Ricoeur to the non-directive counselling method of Carl Rogers in their work of coaching patients with moral problems in health care. The developed method was shared with other health care professionals in a training course. Experiences in the course and further practice led to further improvement of the method. 相似文献
104.
Carlo Umiltà Roberto Nicoletti Francesca Simion Maria Elena Tagliabue Sebastiano Bagnara 《Journal of Cognitive Psychology》2013,25(1):21-40
Abstract Experiment 1 demonstrated a new kind of dual-task interference effect. The primary task was a speeded left-right discrimination of stimulus position (R1). The un speeded secondary task consisted of reporting verbally whether the stimuli were the same or different (R2). Stimulus exposure time was either 150 or 2000 msec. Two groups of subjects performed the primary task only, whereas two other groups performed both tasks and were instructed to emit R1 before R2. It was reasoned that the decision would be made to emit R1 before R2, and that this decision would produce a lengthening of R1. The results supported this prediction. Experiment 2 showed that the interference effect also occurred when the subjects were not explicitly instructed to emit R1 before R2, and was not due to either the mere presence of the second task or to response grouping. Experiments 3 and 4 compared two possible models for explaining the interference effect, i.e. the capacity-sharing model and the postponement model. As predicted by the postponement model, task difficulty did not interact, or interacted underadditively, with task overlap (Experiment 3), and the interference effect was not influenced by the amount of processing resources devoted to the primary task (Experiment 4). It was concluded that this new type of interference effect is best explained by the version of the postponement model that locates the bottleneck at the decision stage. 相似文献
105.
106.
We report a series of ten experiments aimed to investigate the newborn's ability to discriminate the components of a visual pattern and to process the visual information that specifies the global configuration of a stimulus. The results reveal that: (i) newborn babies are able to distinguish individual elements of a stimulus (experiments 1A, 1B, 1C, and 1D); (ii) they can group individual elements into a holistic percept on the basis of Gestalt principles (experiments 2A and 3A); (iii) their spontaneous preferences cannot be easily modified by habituation (experiments 2B and 3B); and (iv) when horizontal stimuli are paired with vertical stimuli, they prefer the horizontal ones (experiments 4A and 4B). 相似文献
107.
In three experiments, we tested the hypothesis that activation of multiplication operand nodes (e.g., 3 and 8) can occur through presentation of their product (e.g., 24). In Experiments 1 and 2 we found activation of the operands when the product was presented as a cue in a number-matching task. In Experiment 3, activation also occurred in a parity-matching task, where the product (24) was not relevant to the parity matching on its operands (3 and 8). We concluded that bidirectional links exist among the operands and their product for multiplication problems and these links can be activated in a purely stimulus-driven manner. We suggest this may constitute the basis for the solution of simple divisions by mediation through the complementary multiplication facts. 相似文献
108.
We review a series of studies exemplifying some applications of single-pulse and paired-transcranial magnetic stimulation (TMS) in the study of spatial attention and of its deficits. We will focus primarily on sensory extinction, the failure to consciously perceive a contralesional sensory stimulus only during bilateral stimulation of homologous surfaces. TMS studies in healthy controls show that it is possible either to interfere or modulate the excitability of the parietal cortex during sensory (i.e. tactile and visual) attentional tasks, thus reproducing a condition of virtual extinction. TMS studies in patients with unilateral (mainly right) brain damage show that the modulation of the unbalance in cortical excitability between the two cerebral hemispheres transiently improves contralesional sensory extinction. These studies show the possible application of TMS not only as a research method in healthy subjects, but also as a tool for inducing brain excitability changes in patients with sensory extinction, which could be useful for supporting the rehabilitation of this deficit. 相似文献
109.
Recent evidence has shown that uninformative numbers can trigger attention shifts congruent with the spatial representation
of number magnitude (Fischer, Castel, Dodd, & Pratt, 2003). In the present study, three spatial-cuing experiments whose aim
was to qualify the automaticity of this numbermediated orienting are described. Experiment 1 replicated the phenomenon, showing
that uninformative numbers can evoke orienting in a simple detection task. In Experiment 2, target location was random, but
the participants were encouraged to shift attention to the left in response to large numbers and to the right in response
to small numbers. No evidence for strong automaticity was observed, since the participants’ performance was better when left-side
targets were preceded by large numbers than when they were preceded by small numbers and vice versa. Experiment 3 corroborated
this pattern by comparing gaze- and number-mediated cuing under conditions of real counterpredictiveness. The results indicate
that unlike gaze-driven orienting, number-mediated orienting is not obligatory. 相似文献
110.
Ottoboni G Tessari A Cubelli R Umiltà C 《Journal of experimental psychology. Human perception and performance》2005,31(4):778-789
The authors used a modified Simon task (J. R. Simon, 1969) to assess the automatic recognition of handedness. Participants responded to the color of a circle in the center of the photograph of a right or a left hand, displayed in the center of the computer screen. A regular Simon effect was found for back views, whereas a reverse Simon effect was found for palm views. This pattern of results was found when the forearm was present (Experiment 2), when 1 finger at a time was rendered invisible (Experiment 3), and when the hands were connected to a body image (Experiment 4). When the hands were cut at the wrist, no effect emerged (Experiment 1). These findings suggest an automatic encoding of the relative position of the hand in relation to the body (imaginary or real) rather than the automatic encoding of handedness. 相似文献