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51.
52.
The split fovea theory proposes that visual word recognition of centrally presented words is mediated by the splitting of the foveal image, with letters to the left of fixation being projected to the right hemisphere (RH) and letters to the right of fixation being projected to the left hemisphere (LH). Two lexical decision experiments aimed to elucidate word recognition processes under the split fovea theory are described. The first experiment showed that when words were presented centrally, such that the initial letters were in the left visual field (LVF/RH), there were effects of orthographic neighborhood, i.e., there were faster responses to words with high rather than low orthographic neighborhoods for the initial letters ('lead neighbors'). This effect was limited to lead-neighbors but not end-neighbors (orthographic neighbors sharing the same final letters). When the same words were fully presented in the LVF/RH or right visual field (RVF/LH, Experiment 2), there was no effect of orthographic neighborhood size. We argue that the lack of an effect in Experiment 2 was due to exposure to all of the letters of the words, the words being matched for overall orthographic neighborhood count and the sub-parts no longer having a unique effect. We concluded that the orthographic activation found in Experiment 1 occurred because the initial letters of centrally presented words were projected to the RH. The results support the split fovea theory, where the RH has primacy in representing lead neighbors of a written word. 相似文献
53.
Divided attention at encoding is well known to have adverse effects on episodic memory performance (e.g., Naveh-Benjamin & Greg, 2000). This article attempts to determine whether these effects are a result of the interruption of encoding of associative information among the components of an episode. Five experiments, using different types of episodes and episodes components, were conducted. Participants studied information under either full or divided attention and were then tested on their memory for both the episodes' components and the associations between them. Divided attention did not produce a differential deficit in memory for associative information; memory for the components suffered to the same degree as memory for the associations among the components. The cause of the divided-attention effect at encoding lies somewhere other than in the associative processes that are engaged. 相似文献
54.
The neural reality of syntactic transformations: evidence from functional magnetic resonance imaging 总被引:6,自引:0,他引:6
The functional anatomy of syntactic transformations, a major computational operation invoked in sentence processing, was identified through a functional magnetic resonance imaging investigation. A grammaticality judgment task was used, presented through a novel hidden-blocks design. Subjects listened to transformational and nontransformational sentences in which a host of other complexity generators (number of words, prepositions, embeddings, etc.) were kept constant. A series of analyses revealed that the neural processing of transformations is localizable, evoking a highly lateralized and localized activation in the left inferior frontal gyrus (Broca's region) and bilateral activation in the posterior superior temporal sulcus. The pattern of activation associated with transformational analysis was distinct from the one observed in neighboring regions, and anatomically separable from the effects of verb complexity, which yielded significant activation in the left posterior superior temporal sulcus. Taken together with neuropsychological evidence, these results uncover the neural reality of syntactic transformations. 相似文献
55.
Michal Shamai 《Journal of Family Therapy》1999,21(2):217-229
This paper focuses on the necessity to expand some perspectives of systemic interventions beyond the therapeutic room. It relates to situations where the problem presented by the client system arises from a political ideology that marginalizes the client system. The consideration of new alternatives requires a dialogue about the ideology of the client system and the ideologies held by others – the therapist, the people in the main stream, etc. Balancing between sharing therapist prejudices, i.e. political ideology, being neutral in understanding the narrative and meaning of the client system ideology, and being irreverent towards all ideologies, is useful in enabling the consideration of new alternatives. This is illustrated by the case of a supervisor/dialogue process with a group of Jewish family therapists living in the situation of political uncertainty on the West Bank of the Jordan, an area that has been occupied by Israel for three decades and a focal point of the changes proscribed by the Oslo Peace Agreement. 相似文献
56.
Religious and conspiracy beliefs share the feature of assuming powerful forces that determine the fate of the world. Correspondingly, they have been theorized to address similar psychological needs and to be based on similar cognitions, but there exist little authoritative answers about their relationship. We delineate two theory-driven possibilities. If conspiracy theories and religions serve as surrogates for each other by fulfilling similar needs, the two beliefs should be negatively correlated. If conspiracy and religious beliefs stem from the same values and cognitions, this would speak for a positive correlation that might be diminished—for example—by controlling for shared political ideologies. We approached the question with a meta-analysis (N = 10,242), partial correlations from large Christian-dominated datasets from Germany, Poland, and the United States (N = 12,612), and a preregistered U.S. study (N = 500). The results indicate that the correlations between religiosity and conspiracy theory endorsement were positive, and political orientation shared large parts of this covariance. Correlations of religiosity with the more need-related conspiracy mentality differed between countries. We conclude that similarities in the explanatory style and ideologies seem to be central for the relation between intrinsic religiosity and endorsing conspiracy theories, but psychological needs only play a minor role. 相似文献
57.
Monitoring (Miller, 1991) is defined as a cognitive coping style characterized by the tendency to seek information about threats. This study found that information seeking in stressful situations is perceived by individuals as related to the emotion-focused more than the problem-focused function of coping and that there is considerable variance among individuals in the perceived functions of information seeking and the relationships among information-seeking reactions and their perceived functions. Information-seeking preferences in a natural stressful situation (a final course examination) were predicted by individual differences in perceived functions of information seeking rather than by generalized behavioral coping styles (monitoring). The results were interpreted in relation to the cognitive-affective system theory (Mischel & Shoda, 1995), and implications for the measurement of coping dispositions were discussed. 相似文献
58.
Both cerebral hemispheres contain phonological, orthographic and semantic representations of words, however there are between-hemisphere differences in the relative engagement and specialization of the different representations. Taking orthographic processing for example, previous studies suggest that orthographic neighbourhood size (N) has facilitatory effects in the right but not the left hemispheres. To pursue the nature of this asymmetric N effect, in particular whether there are individual differences in such specialisation, we examined N in a case of developmental dyslexia, FM. We first describe the nature of his difficulties, which are mainly severe phonological deficits. Employing the divided visual field paradigm with FM revealed a greater sensitivity in the right than in the left hemisphere to orthographic variables, with a significant inhibitory N effect in the left, but not right hemisphere. Such inhibition, to a lesser degree, was found among a group of adults with dyslexia but not among age-matched normal readers. We argue that enhanced sensitivity to orthographic cues is developed in some cases of dyslexia when a normal, phonology-based left hemisphere word recognition processing is not achieved. The interpretation presented here is cast in terms of differences between people with dyslexia and typical readers that originate in the atypical way in which orthographic representations are initially set up. 相似文献
59.
Raveh M 《Brain and language》2002,81(1-3):312-325
This research investigated the role of frequency and semantic factors in the processing of morphologically complex words. Unaffixed targets were immediately preceded by either inflected or derived primes that were either high or low in frequency. In Experiment 1, low-frequency inflections and derivations produced equivalent priming effects, whereas high-frequency inflections produced more priming than derivations. In Experiment 2, both semantic and morphological priming varied as a function of SOA (50, 150, and 250 ms). The difference in priming of inflections and derivations increased as SOA increased. Results suggest that frequency and semantic similarity interactively modulate the magnitude of morphological priming and, by inference, affect the processing of morphologically complex words. Dual-route and connectionist accounts are discussed. 相似文献
60.
An examination of semantic radical combinability effects with lateralized cues in Chinese character recognition 总被引:1,自引:0,他引:1
Auclair and Siéroff examined lateralized cuing effects in the identification of centrally presented letter strings and reported no cuing effects for short word stimuli. They argued for a redistribution of attention over the entire word for short familiar words. We explored cuing effects with Chinese phonetic compounds, which can be considered extreme examples of short words, in a character-level semantic judgment task. When the semantic radical position was placed on the left of the characters, strong radical combinability and semantic transparency effects were observed. There was also a significant interaction between cue position (left vs. right) and radical combinability: A left cue facilitated semantic judgment of characters with small radical combinability more than did a right cue. This behavior reflects the information profile of Chinese phonetic compounds. Semantic radicals with small combinability are more informative than those with large combinability in determining the meaning of the whole character; they therefore benefit more from a left than a right cue. A mechanism redistributing attention over the whole of the character was not in evidence at the level of semantic processing. 相似文献