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141.
Our body-shadows are special stimuli in the visual world. They often have anatomical resemblance with our own body-parts and move as our body moves, with spatio-temporal correlation. Here, we show that self-attributed body-shadows cue attention to the body-part they refer to, rather than the location they occupy. Using speeded spatial discrimination for tactile or visual targets at the hands, or for visual targets delivered near the hand-shadows, we demonstrate that mere viewing of task-irrelevant shadows can selectively facilitate tactile discrimination at the body-part casting the shadow (Experiment 1). In addition, such facilitation only develops through time for cast-shadows that have no resemblance with the body-part, but move in spatio-temporal correlation with it (Experiment 2). Conversely, facilitation fades away rapidly for shadow-like images that resemble the stimulated body-part, but are in fact static pictures (Experiment 3). Thus, recognising oneself as the owner of a shadow affects distribution of tactile attention. 相似文献
142.
The aim of this review was to consider the literature concerned with a sequential use of pharmacotherapy and psychotherapy
in mood disorders. Review of the clinical trials where treatment components were used in a sequential order were identified
by using MEDLINE, a manual search of the literature and the Index Medicus. In unipolar recurrent depression, the sequential
use of pharmacotherapy and psychotherapy was found to improve relapse rate. In bipolar disorder, the use of psychotherapeutic
strategies in patients who were already assuming mood stabilizers was also found to yield clinical benefits. The sequential
model has the potential for improving the logic and timing of interventions. A conceptual shift in current assessment methods
(staging) is needed. 相似文献
143.
Giovanni Vassalli 《The International journal of psycho-analysis》2001,82(1):3-25
The author aims to demonstrate, through a textual analysis of Freud's work, how the creation of psychoanalysis as a plausible set of understandings of the human mind has a methodological origin that has sometimes been overlooked: in the Greek concept of techne. Freud, an acknowledged pupil of Brentano, was well versed in Aristotelian rhetoric, and selected this instrument of investigation, dependent on language, from the outset of his efforts to describe, understand and treat the world of the unconscious mind. Working in the tradition of techne Freud actually rehabilitated ‘guessing’ (zu erraten) ‐ although it became a largely overlooked concept in Freud's work ‐ and so sought to place conjectural reason as the definitive form of knowledge for the investigation and treatment of the mind. This explains why the 1895 ‘Project’ could not succeed and why technique became irreplaceable as the via regia in ‘The Interpretation of Dreams’. Its model is founded in Aristotelian rhetoric, whose conception of language was first rediscovered by Nietzsche and was used therapeutically by Freud. Freud's view is apparent in his 1923 definition of psychoanalysis which is compared to the current IPA definition, a definition which, the author suggests, gives a misleading prominence to ‘theory’ and which shows how far a questionable rationality has removed conjectural reason from the field, to its detriment. From this point of view it is argued that the ‘precious conjunction’ (Freud) between investigation and treatment has been abandoned, and the concept of historical truth and its significance for psychoanalysis obscured. 相似文献
144.
Roberta Perri Giovanni Augusto Carlesimo Marco Monaco Carlo Caltagirone Gian Daniele Zannino 《Journal of Neuropsychology》2019,13(3):485-502
Experiments with semantic priming (SP) paradigms have documented early hypopriming in patients with AD when concepts are used as primes and attribute concept features as targets, suggesting that concept attributes are vulnerable to damage very early in the disease course. The aims of this study were to confirm early priming reduction in the attribute condition in patients with AD and to determine which of several semantic indexes (such as the level of distinctiveness, correlation or feature dominance of concept features) best predicts the priming effect size in AD. We administered an SP attribute condition paradigm to 20 mildly demented patients with AD and to 10 NCs. We used concept–attribute pairs for which normative data of semantic indexes relative to both concept primes (i.e., number, type, mean level of dominance, distinctiveness and correlation of features constituting the concepts) and target features (i.e., level of feature dominance, correlation and distinctiveness) were available. Results showed that compared to NCs, the AD group obtained very reduced priming facilitation. Furthermore, the item regression analyses showed that the priming decrement in the AD group was predicted by the feature dominance of the target in the related pairs; that is, the lower the target feature dominance, the lower the priming effect elicited. These results confirmed hypopriming in the attribute condition from the very early phase of AD and support the view that attributes which are more salient for the identification of a given concept are also those most resistant to semantic memory degradation in AD pathology. 相似文献
145.
146.
Notarnicola A Fischetti F Vicenti G Laricchia L Guastamacchia R Tafuri S Moretti B 《Perceptual and motor skills》2012,114(1):250-260
The purpose of the present study was to monitor any improvement in orienteering skills attributable to acquiring a better mental representation of space. Two groups were examined: the experimental group, who attended 6 mo. of orienteering lessons, versus the control group, who did jogging training instead. Each group, consisting of 20 children, was tested on the Corsi Block-tapping Test, run Forward and Backward, and the Star-Butterfly Test. Pre- and post-tests were administered. In the experimental group, scores increased in mean complexity from pre- to post-test on the Forward and the Backward Corsi tests, while on the Star-Butterfly Test both time and mistakes had decreased after the training. In the control group, mean complexity and Star-Butterfly Test scores were unchanged from pre- to post-test. These results showed that after continual training in orienteering techniques, the orienteering group was able to remember and repeat sequences of events with greater precision than before the training, while these skills were unchanged in the control group after training in jogging. 相似文献
147.
The cannabinoid receptor type 1 (CB1) is abundantly expressed in the central nervous system where it negatively controls the release of several neurotransmitters. CB1 activity plays a crucial role in learning and memory and in synaptic plasticity. In the present study, the role of CB1 was investigated in three different hippocampus-dependent memory tasks and in in vivo hippocampal synaptic plasticity in knockout (CB1-ko) and wildtype mice. There was no difference in short-term and long-term social and object recognition memory between CB1-ko and wildtype mice. In contrast, in background contextual fear conditioning CB1-ko mice showed enhanced freezing levels in the conditioning context and increased generalised contextual fear after a high-intensity conditioning foot shock of 1.5 mA, but not after 0.7 mA. In in vivo field potential recordings in the dentate gyrus, CB1-ko mice displayed a decreased paired-pulse facilitation of the populations spikes, suggesting an altered inhibitory synaptic drive onto hippocampal granule cells. Furthermore, CB1-ko mice displayed significantly higher levels of in vivo long-term potentiation (LTP) in the dentate gyrus. In conclusion, CB1 deficiency leads to enhanced contextual fear memory and altered synaptic plasticity in the hippocampus, supporting the key role of endocannabinoid signalling in learning and memory, in particular following highly aversive encounters. 相似文献
148.
The hippocampus plays a central role in spatial representation, declarative and episodic memory. In this area, so-called place cells possess high spatial selectivity, firing preferentially when the individual is within a small area of the environment. Interestingly, it has been found in rats that these cells can be active also when the animal is outside the location or context of their corresponding place field producing so-called “forward sweeps”. These typically occur at decision points during task execution and seem to be utilized, among other things, for the evaluation of potential alternative paths. Anticipatory firing is also found in the ventral striatum, a brain area that is strongly interconnected with the hippocampus and is known to encode value and reward. In this paper, we describe a biologically based computational model of the hippocampal-ventral striatum circuit that implements a goal-directed mechanism of choice, with the hippocampus primarily involved in the mental simulation of possible navigation paths and the ventral striatum involved in the evaluation of the associated reward expectancies. The model is validated in a navigation task in which a rat is placed in a complex maze with multiple rewarding sites. We show that the rat mentally activates place cells to simulate paths, estimate their value, and make decisions, implementing two essential processes of model-based reinforcement learning algorithms of choice: look-ahead prediction and the evaluation of predicted states. 相似文献
149.
Giovanni B. Caputo 《Consciousness and cognition》2013,22(1):324-329
In normal observers, gazing at one’s own face in the mirror for a few minutes, at a low illumination level, triggers the perception of strange faces, a new visual illusion that has been named ‘strange-face in the mirror’. Individuals see huge distortions of their own faces, but they often see monstrous beings, archetypal faces, faces of relatives and deceased, and animals. In the experiment described here, strange-face illusions were perceived when two individuals, in a dimly lit room, gazed at each other in the face. Inter-subjective gazing compared to mirror-gazing produced a higher number of different strange-faces. Inter-subjective strange-face illusions were always dissociative of the subject’s self and supported moderate feeling of their reality, indicating a temporary lost of self-agency. Unconscious synchronization of event-related responses to illusions was found between members in some pairs. Synchrony of illusions may indicate that unconscious response–coordination is caused by the illusion–conjunction of crossed dissociative strange-faces, which are perceived as projections into each other’s visual face of reciprocal embodied representations within the pair. Inter-subjective strange-face illusions may be explained by the subject’s embodied representations (somaesthetic, kinaesthetic and motor facial pattern) and the other’s visual face binding. Unconscious facial mimicry may promote inter-subjective illusion–conjunction, then unconscious joint-action and response–coordination. 相似文献
150.
Jekaterina Rogaten Giovanni B. Moneta Marcantonio M. Spada 《Journal of Happiness Studies》2013,14(6):1751-1763
Based on the model of approaches to studying and the control-process model of self-regulation of behavior, it was hypothesized that students’ strategic approaches to studying and positive affect in studying would be positively associated with academic performance, whereas students’ surface approach to studying and negative affect in studying would be negatively associated with academic performance. A sample of 406 undergraduate students completed the Approaches and Study Skills Inventory for Students, the Positive and Negative Affect Schedule, and the Evaluation Anxiety Scale, and their end-of-semester and past semester academic performance were recorded. Regression analyses controlling for past semester performance and evaluation anxiety showed that positive affect predicted better examination grades, coursework grades and Grade Point Average, negative affect measured in the second half of a semester predicted worse examination grades and Grade Point Average, whereas approaches to studying did not predict performance. The implications of the findings are outlined. 相似文献