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261.
Gaze alternation (GA) is considered a hallmark of pointing in human infants, a sign of intentionality underlying the gesture.
GA has occasionally been observed in great apes, and reported only anecdotally in a few monkeys. Three squirrel monkeys that
had previously learned to reach toward out-of-reach food in the presence of a human partner were videotaped while the latter
visually attended to the food, a distractor object, or the ceiling. Frame-by-frame video analysis revealed that, especially
when reaching toward the food, the monkeys rapidly and repeatedly switched between looking at the partner’s face and the food.
This type of GA suggests that the monkeys were communicating with the partner. However, the monkeys’ behavior was not influenced
by changes in the partner’s focus of attention. 相似文献
262.
A culture promoting a strong desire for romantic relationships can greatly influence feelings of romantic loneliness and of closeness. In this study, the authors hypothesized that when not in a romantic relationship, U.S. young adults experience greater degrees of romantic loneliness because of a high desire for romantic relationships, compared with Korean young adults. The authors also predicted that when in a romantic relationship, U.S. young adults experience greater closeness to their romantic partner than do Korean young adults. Results revealed that in a sample of 227 U.S. and Korean students, U.S. students reported significantly higher levels of romantic loneliness than did Koreans when not in a romantic relationship and significantly lower levels of romantic loneliness when in a stable romantic relationship. U.S. students also reported a greater degree of closeness in romantic relationships than did Korean students. The results suggest that Western cultures' strong emphasis on the importance of romantic relationships may unduly amplify individuals' levels of loneliness. 相似文献
263.
Anderson JR Awazu S Fujita K 《Quarterly journal of experimental psychology (2006)》2009,62(4):673-680
To assess the relative salience of colour and quantity cues, squirrel monkeys previously trained to reach for the smaller of two quantities of food in a reverse-reward contingency task received colour discrimination training. After initial failure to discriminate between two colours of dots under a differential reinforcement regime, they learned the task when the S- colour was associated with zero reward. The monkeys then showed good retention on the original reverse-reward task of 1 versus 4 with pairs of dots presented in S+ or S- colours. However, on "mismatch" trials of 1S- versus 4S+ , only 2 of 4 monkeys tested showed a preference--1 monkey chose based on quantity, the other based on colour. Individual differences and the possible roles of overshadowing and blocking are discussed. 相似文献
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This study investigates how neural networks address the properties of children's linguistic knowledge, with a focus on the Agent-First strategy in comprehension of an active transitive construction in Korean. We develop various neural-network models and measure their classification performance on the test stimuli used in a behavioural experiment involving scrambling and omission of sentential components at varying degrees. Results show that, despite some compatibility of these models’ performance with the children's response patterns, their performance does not fully approximate the children's utilisation of this strategy, demonstrating by-model and by-condition asymmetries. This study's findings suggest that neural networks can utilise information about formal co-occurrences to access the intended message to a certain degree, but the outcome of this process may be substantially different from how a child (as a developing processor) engages in comprehension. This implies some limits of neural networks on revealing the developmental trajectories of child language.
Research Highlights
- This study investigates how neural networks address properties of child language.
- We focus on the Agent-First strategy in comprehension of Korean active transitive.
- Results show by-model/condition asymmetries against children's response patterns.
- This implies some limits of neural networks on revealing properties of child language.
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