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431.
A number of methodological features were incorporated in a paradigm designed to maximize the likelihood of finding reliable event-related potential (ERP) signs of functional specializations between and within the cerebral hemispheres. Every subject was more accurate in identifying words presented to the right than to the left visual field. The morphology of the ERPs elicited by these words varied considerably as a function of electrode position both within and between the hemispheres. Amplitude asymmetries of ERP components recorded from occipital regions of the two hemispheres varied systematically with the position of the word in the visual field. On the other hand, ERPs from more anterior (temporal and frontal) regions displayed large asymmetries which were in the same direction regardless of the visual field of word presentation. The most prominent such asymmetry was in the negativity in the region 300–500 msec (N410) which was larger in the left than the right hemisphere in every subject. These results demonstrate that in this paradigm which demands specialized language processing ERPs are sensitive to aspects of cerebral organization both within and between the two hemispheres. 相似文献
432.
Robert Sinclair 《The Southern journal of philosophy》2002,40(3):395-409
433.
Two hundred forty-one undergraduates described their experiences with unrequited love, both as pursuers (actors) and love interests (targets). As expected, targets and actors perspectives differed. As targets, participants reported being on the receiving end of more unwanted courtship tactics, violent and nonviolent, than they reported using as pursuers. Further, participants in the actor role—particularly men—tended to overreport receiving signals that their love interest was reciprocating, and to underreport receiving rejections. Meanwhile, targets—particularly women—claimed numerous attempts to reject, including explicitly stating “I am definitely not interested in you,” and indicated minimal positive reactions to the unwanted pursuit. Implications of these differences, and others, in perspectives for understanding difficulties in differentiating persistence from stalking are discussed. 相似文献
434.
435.
Mastroberardino S Santangelo V Botta F Marucci FS Olivetti Belardinelli M 《Cognitive processing》2008,9(1):69-76
The best format in which information that has to be recalled is presented has been investigated in several studies, which
focused on the impact of bimodal stimulation on working memory performance. An enhancement of participant’s performance in
terms of correct recall has been repeatedly found, when bimodal formats of presentation (i.e., audiovisual) were compared
to unimodal formats (i.e, either visual or auditory), in providing implications for multimedial learning. Several theoretical
frameworks have been suggested in order to account for the bimodal advantage, ranging from those emphasizing early stages
of processing (such as automatic alerting effects or multisensory integration processes) to those centred on late stages of
processing (as postulated by the dual coding theory). The aim of this paper is to review previous contributions to this topic,
providing a comprehensive theoretical framework, which is updated by the latest empirical studies. 相似文献
436.
Toddlers’ and preschoolers’ knowledge of the phonological forms of words was tested in Spanish-learning, Catalan-learning, and bilingual children. These populations are of particular interest because of differences in the Spanish and Catalan vowel systems: Catalan has two vowels in a phonetic region where Spanish has only one. The proximity of the Spanish vowel to the Catalan ones might pose special learning problems. Children were shown picture pairs; the target picture’s name was spoken correctly, or a vowel in the target word was altered. Altered vowels either contrasted with the usual vowel in Spanish and Catalan, or only in Catalan. Children’s looking to the target picture was used as a measure of word recognition. Monolinguals’ word recognition was hindered by within-language, but not non-native, vowel changes. Surprisingly, bilingual toddlers did not show sensitivity to changes in vowels contrastive only in Catalan. Among preschoolers, Catalan-dominant bilinguals but not Spanish-dominant bilinguals revealed mispronunciation sensitivity for the Catalan-only contrast. These studies reveal monolingual children’s robust knowledge of native-language vowel categories in words, and show that bilingual children whose two languages contain phonetically overlapping vowel categories may not treat those categories as separate in language comprehension. 相似文献
437.
Marta Picozzi Viola Macchi Cassia Chiara Turati Elena Vescovo 《Journal of experimental child psychology》2009,(4):487-502
This study compared the effect of stimulus inversion on 3- to 5-year-olds’ recognition of faces and two nonface object categories matched with faces for a number of attributes: shoes (Experiment 1) and frontal images of cars (Experiments 2 and 3). The inversion effect was present for faces but not shoes at 3 years of age (Experiment 1). Analogous results were found for boys when faces were compared with frontal images of cars. For girls, stimulus inversion impaired recognition of both faces and cars at 3 to 4 years of age, becoming specific to faces only at 5 years of age (Experiments 2 and 3). Evidence demonstrates that the ability to extract the critical cues that lead to adults’ efficient face recognition is selectively tuned to faces during preschool years. 相似文献
438.
The voice is a marker of a person's identity which allows individual recognition even if the person is not in sight. Listening to a voice also affords inferences about the speaker's emotional state. Both these types of personal information are encoded in characteristic acoustic feature patterns analyzed within the auditory cortex. In the present study 16 volunteers listened to pairs of non-verbal voice stimuli with happy or sad valence in two different task conditions while event-related brain potentials (ERPs) were recorded. In an emotion matching task, participants indicated whether the expressed emotion of a target voice was congruent or incongruent with that of a (preceding) prime voice. In an identity matching task, participants indicated whether or not the prime and target voice belonged to the same person. Effects based on emotion expressed occurred earlier than those based on voice identity. Specifically, P2 (approximately 200 ms)-amplitudes were reduced for happy voices when primed by happy voices. Identity match effects, by contrast, did not start until around 300 ms. These results show an early task-specific emotion-based influence on the early stages of auditory sensory processing. 相似文献
439.
Three experiments indicate that affective cues regulate expression of implicitly measured stereotypes and attitudes. In Experiment 1, negative mood led to less stereotypic bias on the weapon-identification task [Payne, B. K. (2001). Prejudice and perception: The role of automatic and controlled processes in misperceiving a weapon. Journal of Personality and Social Psychology, 81, 181-192] than positive mood. In Experiment 2, negative mood led to less implicitly measured racial prejudice than positive mood. In Experiment 3, negative, relative to positive, mood decreased women’s implicitly measured preference for the arts over math. Process-dissociation analyses suggested that affect regulated automatic attitude and stereotype activation rather than controlled influences on attitude expression. The results show that mood can shape even rudimentary forms of cognition. 相似文献
440.
Viola Macchi Cassia Marta Picozzi Dana Kuefner Emanuela Bricolo Chiara Turati 《Developmental science》2009,12(2):236-248
The current study compared the development of holistic processing for faces and non‐face visual objects by testing for the composite effect for faces and frontal images of cars in 3‐ to 5‐year‐old children and adults in a series of four experiments using a two‐alternative forced‐choice recognition task. Results showed that a composite effect for faces was present as early as years, and none of the age groups tested showed signs of a composite effect for cars. These findings provide the first demonstration that holistic processing is already selective for faces in early childhood, and confirm existing evidence that sensitivity to holistic information in faces does not increase from 4 years to adulthood. 相似文献