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R F?tzsch R Podemski A Brzecki R Bogdańska 《Psychiatrie, Neurologie, und medizinische Psychologie》1986,38(9):518-525
Twenty six clinically healthy smokers were studied with transient pattern visual-evoked potentials. In comparison with a sample of "normal" subjects we found a difference of some parameters (P less than 0.05): the P2-latency and the interocular difference of latency on average were 6-7 ms respectively 2 ms larger. Thirteen subjects have had a prolonged P2-latency (P less than 0.05) and/or a difference in interocular latencies larger than 5 ms. These findings may suggest on subclinical disturbances of visual system and indicators of an special sensitivity of that person. The findings are possibly related to tobacco-alcohol amblyopia. 相似文献
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The problems we deal with concern reasoning about incomplete knowledge. Knowledge is understood as ability of an ideal rational agent to make decisions about pieces of information. The formalisms we are particularly interested in are Moore's autoepistemic logic (AEL) and its variant, the logic of acceptance and rejection (AEL2). It is well-known that AEL may be seen as the nonmonotonic KD45 modal logic. The aim is to give an appropriate modal formalization for AEL2. 相似文献
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Katarzyna Pałasińska 《Studia Logica》1994,53(3):361-372
There are exactly two nonfinitely axiomatizable algebraic matrices with one binary connective o such thatx(yz) is a tautology of . This answers a question asked by W. Rautenberg in [2], P. Wojtylak in [8] and W. Dziobiak in [1]. Since every 2-element matrix can be finitely axiomatized ([3]), the matrices presented here are of the smallest possible size and in some sense are the simplest possible.Presented byWolfgang Rautenberg 相似文献
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The intuitionistic consequence operation restricted to the language with (equivalence) and (negation) as the only connectives is axiomatized by means of a finite set of sequential rules of inference.To the memory of Professor Roman Suszko 相似文献
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This study examined the role of values, traits and their interactions for the experience of eudaimonic and hedonic well-being. First wave studies on value and well-being relationships yielded inconsistent results suggesting that these relationships are moderated by other factors, possibly by personality traits. We asked a representative sample of adult Poles (N = 1161) to report on their personality traits (according to five-factor theory), values (conceptualised by Schwartz) and well-being (hedonic and eudaimonic). Results showed, that higher Extraversion, Emotional stability, Intellect, Agreeableness and Conscientiousness were related to higher well-being, confirming and expanding claims from personality theory of subjective well-being: stable predispositions are related not only to subjective, but also to eudaimonic well-being. Values expressing Openness to change, Self-transcendence and Conservation were also positively correlated with well-being, while the role of Self-enhancement was unclear. This confirmed that growth needs expressed in Openness to change and Self-transcendence values promote well-being, but also that values expressing deficiency needs can be positively related to well-being, possibly in specific circumstances. Finally, the two levels of personality (traits and values) proved to have a joint relationship to well-being: higher Conscientiousness and Agreeableness enhanced positive relationships of Openness to change and Self-transcendence with some aspects of well-being. 相似文献
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Savonenko A Werka T Nikolaev E Zieliñski K Kaczmarek L 《Learning & memory (Cold Spring Harbor, N.Y.)》2003,10(4):293-303
Although much has been learned about the role of the amygdala in Pavlovian fear conditioning, relatively little is known about an involvement of this structure in more complex aversive learning, such as acquisition of an active avoidance reaction. In the present study, rats with a pretraining injection of the N-methyl-D-aspartate (NMDA) receptor antagonist, 2-amino-5-phosphonopentanoic acid (APV), into the basolateral amygdala (BLA) were found to be impaired in two-way active avoidance learning. During multitrial training in a shuttle box, the APV-injected rats were not different from the controls in sensitivity to shock or in acquisition of freezing to contextual cues. However, APV injection led to impaired retention of contextual fear when tested 48 h later, along with an attenuation of c-Fos expression in the amygdala. These results are consistent with the role of NMDA receptors of the BLA in long-term memory of fear, previously documented in Pavlovian conditioning paradigms. The APV-induced impairment in the active avoidance learning coincided with deficits in directionality of the escape reaction and in attention to conditioned stimuli. These data indicate that normal functioning of NMDA receptors in the basolateral amygdala is required during acquisition of adaptive instrumental responses in a shuttle box but is not necessary for acquisition of short-term contextual fear in this situation. 相似文献