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排序方式: 共有175条查询结果,搜索用时 15 毫秒
121.
Michele Lepore Katia Celentano Massimiliano Conson Dario Grossi 《Child neuropsychology》2008,14(5):438-452
Several lines of research on adult subjects demonstrate a visual/spatial fractionation of nonverbal working memory (WM), while behavioral studies on normal children support the idea of a static/dynamic distinction. In the present paper, we report a child (Z.M.) who failed on nonverbal WM tasks. To verify the nature of his defect, we carried out two experiments: in Experiment 1, Z.M. failed on spatial WM tasks but not on visual WM tasks and was not affected by the static/dynamic format of stimulus presentation; in Experiment 2, this visual/spatial dissociation was extended to the imagery domain. These results are best accounted for within the visual/spatial fractionation of WM and confirmed the role of WM in mental imagery. Clinical and rehabilitative implications of the present findings are also discussed. 相似文献
122.
The paper proposes a logical systematization of the notion of counts-as which is grounded on a very simple intuition about what counts-as statements actually mean, i.e., forms of classification. Moving from this analytical thesis the paper disentangles three semantically different readings of statements of the type “X counts as Y in context c”, from the weaker notion of contextual classification to the stronger notion of constitutive rule. These many ways in which counts-as can be said are formally addressed by making use of modal logic techniques. The resulting framework allows for a formal characterization of all the involved notions and their reciprocal logical relationships. 相似文献
123.
Cinzia Chiandetti Elizabeth S. Spelke Giorgio Vallortigara 《Developmental science》2015,18(6):972-978
A fundamental process underlying navigation behaviour, shown to occur in every species tested, uses geometric properties of the environment for location memory and orientation. Here we employ a new method to ask whether this basic geometric orientation ability is innately predisposed in the brain or depends on specific experiences navigating in a geometrically rich environment. Using the newborn domestic chick as a model system, we present a working memory task testing reorientation towards a filial imprinting object under rigorous controlled rearing conditions. In the absence of any previous exposure to a geometrically rich environment, newly hatched chicks spontaneously recovered their bearings by making use of distances and directional relations to reorient themselves to an artificial social partner. These findings provide evidence for an innate capacity to navigate by the geometric structure of the environment. 相似文献
124.
Giorgio De Marchis María del Prado Rivero Expósito José Manuel Reales Avilés 《Cognitive processing》2013,14(4):401-410
Several sources of interference may simultaneously affect the onset of the well-known “Stroop effect.” Among them is the semantic component, which is reflected in the gradient or semantic effect. This effect consists of an increase in the amount of interference as the semantic distance between the word and the color concept decreases. Shepard (Science 237:1317–1323, 1987) relates psychological space, measured through multidimensional scaling, to mean response times. The present investigation aims to study the function relating the semantic gradient with the psychological distance between the word and the color in a Stroop task. After measuring the gradient, we obtained the subjective rating of the degree of dissimilarity of the gradient words with the concept of “color.” In our work, we show that the amount of interference in a Stroop task increases when the semantic distance from the word to the color concept decreases, and it does so exponentially. We replicated the study with different stimuli to test the robustness of the results. 相似文献
125.
126.
Franceschi M Caffarra P Savarè R Cerutti R Grossi E;Tol Research Group 《Behavioural neurology》2011,24(2):149-158
The early differentiation of Alzheimer's disease (AD) from frontotemporal dementia (FTD) may be difficult. The Tower of London (ToL), thought to assess executive functions such as planning and visuo-spatial working memory, could help in this purpose. Twentytwo Dementia Centers consecutively recruited patients with early FTD or AD. ToL performances of these groups were analyzed using both the conventional statistical approaches and the Artificial Neural Networks (ANNs) modelling. Ninety-four non aphasic FTD and 160 AD patients were recruited. ToL Accuracy Score (AS) significantly (p < 0.05) differentiated FTD from AD patients. However, the discriminant validity of AS checked by ROC curve analysis, yielded no significant results in terms of sensitivity and specificity (AUC 0.63). The performances of the 12 Success Subscores (SS) together with age, gender and schooling years were entered into advanced ANNs developed by Semeion Institute. The best ANNs were selected and submitted to ROC curves. The non-linear model was able to discriminate FTD from AD with an average AUC for 7 independent trials of 0.82. The use of hidden information contained in the different items of ToL and the non linear processing of the data through ANNs allows a high discrimination between FTD and AD in individual patients. 相似文献
127.
The question of whether preference for consonance is rooted in acoustic properties important to the auditory system or is acquired through enculturation has not yet been resolved. Two-month-old infants prefer consonant over dissonant intervals, but it is possible that this preference is rapidly acquired through exposure to music soon after birth or in utero. Controlled-rearing studies with animals can help shed light on this question because such studies allow researchers to distinguish between biological predispositions and learned preferences. In the research reported here, we found that newly hatched domestic chicks show a spontaneous preference for a visual imprinting object associated with consonant sound intervals over an identical object associated with dissonant sound intervals. We propose that preference for harmonic relationships between frequency components may be related to the prominence of harmonic spectra in biological sounds in natural environments. 相似文献
128.
Enzo Grossi Pier Luigi Sacco Giorgio Tavano Blessi Renata Cerutti 《Applied research in quality of life》2011,6(4):387-410
The aim of this study is to explore the relationship between cultural access and individual psychological well-being, in order
to provide a possible estimation of the impact of cultural participation upon subjective perceptions of well being. Our exploratory
research was based on a cross-sectional survey undertook on a medium-large sample (n = 1500) of Italian residents in fall 2008. We refer to the Psychological General Well-Being Index–PGWBI, a tool that has
been validated through 30 years of research, as an index of measurement. Moreover, we have administered to the sample an additional
questionnaire inquiring about access to 15 distinct culturally related activities. Data are processed by means of a specific
methodology based on ANN and Called TWIST. TWIST has been developed by the Semeion Research Center, Rome. Our analysis suggests
that culture has a relevant role as a determinant of individual psychological well-being, in that a selected subset of cultural
variables turn out to perform among the best predictors of individual PGWB levels. Our results also allow some preliminary
considerations about innovative, well-being focused public health policies leveraging upon the human and social developmental
role of culture. 相似文献
129.
Tasca GA Balfour L Presniak MD Bissada H 《International journal of group psychotherapy》2012,62(2):197-218
We assessed whether an attachment-based treatment, Group Psychodynamic Interpersonal Psychotherapy (GPIP) had a greater impact compared to Group Cognitive Behavioral Therapy (GCBT) on Cold/Distant and Intrusive/Needy interpersonal problems. Ninety-five individuals with Binge Eating Disorder (BED) were randomized to GPIP or GCBT and assessed at pre-, post-, and six months post-treatment. Both therapies resulted in a significant decrease in all eight interpersonal problem subscales except the Nonassertive subscale. GPIP resulted in a greater reduction in the Cold/Distant subscale compared to GCBT, but no differences were found for changes in the Intrusive/Needy subscale. GPIP may be most relevant for those with BED who have Cold/Distant interpersonal problems and attachment avoidance. 相似文献
130.
Although few studies have systematically investigated the relationship between visual mental imagery and visual working memory,
work on the effects of passive visual interference has generally demonstrated a dissociation between the two functions. In
four experiments, we investigated a possible commonality between the two functions: We asked whether both rely on depictive
representations. Participants judged the visual properties of letters using visual mental images or pictures of unfamiliar
letters stored in short-term memory. Participants performed both tasks with two different types of interference: sequences
of unstructured visual masks (consisting of randomly changing white and black dots) or sequences of structured visual masks
(consisting of fragments of letters). The structured visual noise contained elements of depictive representations (i.e., shape
fragments arrayed in space), and hence should interfere with stored depictive representations; the unstructured visual noise
did not contain such elements, and thus should not interfere as much with such stored representations. Participants did in
fact make more errors in both tasks with sequences of structured visual masks. Various controls converged in demonstrating
that in both tasks participants used representations that depicted the shapes of the letters. These findings not only constrain
theories of visual mental imagery and visual working memory, but also have direct implications for why some studies have failed
to find that dynamic visual noise interferes with visual working memory. 相似文献