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排序方式: 共有112条查询结果,搜索用时 15 毫秒
1.
Carlo L. Cazzullo Gaetano Penati Silvio Scarone Maria G. Fornari Maurizio Maggioni Leonardo F. Resele 《Integrative psychological & behavioral science》1978,13(3):163-168
The relationship between sleep and learning processes is analysed in a sample of schizophrenic patients, starting from more recent hypotheses about the function of REM sleep in learning and memory processes. This is done by means of two experiments: in the first AA. evaluate the possibility to elicit a simple motor conditional reflex acquired during daytime in different sleep stages. With the second experiment daytime learning performances are evaluated with and without a reinforcement administered during REM sleep. Results for the first experiment underline a qualitative difference between REM and nREM sleep in a reflexological perspective. In nREM sleep the conditional response is better maintained than in REM sleep. The second experiment confirms the possibility to improve daytime learning performances after an additional presentation of learning material in REM. The joint study of sleep abnormalities and learning and cognitive impairment in schizophrenic patients is finally suggested. 相似文献
2.
Studia Logica - A sequent calculus methodology for systems of agency based on branching-time frames with agents and choices is proposed, starting with a complete and cut-free system for multi-agent... 相似文献
3.
Francesca Capone Alberto Oliverio Massimo Pomponi Maurizio Marta Franco Gatta Flaminia Pavone 《Neurobiology of learning and memory》1999,71(3):301
The acetylcholinesterase reversible inhibitorN-octyl-1,2,3,4-tetrahydro-9-aminoacridine (THA-C8) is a new synthesized derivative of tacrine (THA) characterized by an alkyl chain in the molecular structure which ameliorates the penetrability of the compound into the central nervous system. THA-C8 (0.1–5 mg/kg) significantly reduced spontaneous locomotor activity in CD1 mice at a dose of 3 mg/kg. Moreover, THA-C8 (0.2–2 mg/kg) significantly improved shuttle-box avoidance acquisition at doses (0.25, 0.3, 1 mg/kg) not affecting locomotion and that are much lower than the doses reported to be effective for THA in animal models. From the data reported it seems that the new compound could be interesting for therapeutic purposes. 相似文献
4.
Laura Bortoli Maurizio Bertollo Yuri Hanin Claudio Robazza 《Psychology of sport and exercise》2012,13(5):693-701
ObjectivesA multi-action plan (MAP) intervention model has been applied to the Italian shooting team in preparation for the London 2012 Olympics to help athletes improve, stabilise, and optimise their performances during practice and competition.DesignA longitudinal design was adopted to assess the intervention effects over two years.MethodsFifteen participants, two female and three male carbine shooters, and five female and five male pistol shooters, took part in the study. First, shooters were requested to accurately and extensively describe their usually optimal sequence of actions for the execution of a single shot from start to follow-through. Second, shooters were asked to identify a small number of the most important core components (three or four) deemed fundamental to optimal performance. Third, performers were engaged in several shooting sessions and asked to assess themselves by rating the quality of each core component. Finally, the most influential core components were further assessed under conditions of increased distress and simulated competition.ResultsCore component ratings were linked to shooting scores classified as optimal or suboptimal. The probability levels of optimal/suboptimal performance associated with the core component ratings were derived using logistical ordinal regression analysis. The full links among core component scores and the full range of shooting scores were also examined through path analysis.ConclusionsFindings highlighted the benefits of using the MAP intervention model in the preparation of elite level shooters. 相似文献
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6.
Various sources in the literature claim that the deduction theorem does not hold for normal modal or epistemic logic, whereas others present versions of the deduction theorem for several normal modal systems. It is shown here that the apparent problem arises from an objectionable notion of derivability from assumptions in an axiomatic system. When a traditional Hilbert-type system of axiomatic logic is generalized into a system for derivations from assumptions, the necessitation rule has to be modified in a way that restricts its use to cases in which the premiss does not depend on assumptions. This restriction is entirely analogous to the restriction of the rule of universal generalization of first-order logic. A necessitation rule with this restriction permits a proof of the deduction theorem in its usual formulation. Other suggestions presented in the literature to deal with the problem are reviewed, and the present solution is argued to be preferable to the other alternatives. A contraction- and cut-free sequent calculus equivalent to the Hilbert system for basic modal logic shows the standard failure argument untenable by proving the underivability of ${\square\,A}$ from A. 相似文献
7.
Paolo Iliceto Gabriella Candilera Diletta Funaro Maurizio Pompili Kalman J. Kaplan Moriah Markus-Kaplan 《Journal of religion and health》2011,50(2):321-329
The psychiatric literature is divided with regard to the long-term psychological effects associated with Holocaust (Shoah) experiences because the findings of clinical and empirical studies often contradict each other. Despite case reports of emotional sequelae related to intergenerational transmission of trauma, recent empirical research has suggested that offspring of survivors of the Shoah did not differ from other children and found no evidence that traumatic experiences of survivors of the Shoah affected their children??s and grandchildren??s adjustment. To shed light on some of the differences between the empirical and clinical observations, the present study set out to compare the grandchildren of survivors of the Shoah and persons of the same age whose families had not been through the Shoah experience. This study compared the two groups on some psychological dimensions relevant to traumatic sequelae: hopelessness, temperament, personality, attitudes, and interpersonal expectations. Subjects were 124 equally divided among the Shoah survivors?? grandchildren and comparison groups; we administered to all subjects TEMPS-A Rome, Beck Hopelessness Scale, State-Trait Anger Expression Inventory, and 9AP (9 Attachment Profile). We found no differences between two groups in Hopelessness, Dysthimic/Cyclotimic/Anxious, Hyperthimic temperament, and self-perception; instead the Shoah survivors?? grandchildren have a view of the other as rejecting, hostile, submissive, insecure, unreliable, and competitive in the interpersonal relationships. The Shoah survivors?? grandchildren are similar to controls in affective temperament, hopelessness and self-perception, but they are more irritable and angry than controls, and their perception about others is deeply negative. Attribution theory was used to elucidate these findings. 相似文献
8.
A weighted Euclidean distance model for analyzing three-way dissimilarity data (stimuli by stimuli by subjects) for heterogeneous
subjects is proposed. First, it is shown that INDSCAL may fail to identify a common space representative of the observed data
structure in presence of heterogeneity. A new model that removes the rotational invariance of the classical multidimensional
scaling problem and specifies K common homogeneous spaces is proposed. The model, called mixture INDSCAL in K classes, or briefly K-INDSCAL, still includes individual saliencies. However, the large number of parameters in K-INDSCAL may produce instability of the estimates and therefore a parsimonious model will also be discussed. The parameters
of the model are estimated in a least-squares fitting context and an efficient coordinate descent algorithm is given. The
usefulness of K-INDSCAL is demonstrated by both artificial and real data analyses. 相似文献
9.
In a sample of 50 psychiatric patients, suicidality as measured by a 54-item scale was associated with scores on scales to assess the presence of comorbidities, family history, medical factors, clinical ratings of psychiatric diagnosis, psychosocial/environmental factors, and protective factors (multiple R2 = .66). 相似文献
10.
Motion plays an important role in recognising animate creatures. This research supports a distinction between intrinsic and extrinsic motions in their relationship to identifying information about the characters performing the motions. Participants viewed events involving costumed human characters. Intrinsic motions involved relative movements of a character’s body parts, whereas extrinsic motions involved movements with respect to external landmarks. Participants were later tested for recognition of the motions and who had performed them. The critical test items involved familiar characters performing motions that had previously been performed by other characters. Participants falsely recognised extrinsic conjunction items, in which characters followed the paths of other characters, more often than intrinsic conjunction items, in which characters moved in the manner of other characters. In contrast, participants falsely recognised new extrinsic motions less often than new intrinsic motions, suggesting that they remembered extrinsic motions but had difficulty remembering who had performed them. Modelling of receiver operating characteristics indicated that participants discriminated old items from intrinsic conjunction items via familiarity, consistent with conjoint representations of intrinsic motion and identity information. In contrast, participants used recollection to distinguish old items from extrinsic conjunction items, consistent with separate but associated representations of extrinsic motion and identity information. 相似文献