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181.
A series of papers appearing in Brain and Language ask whether schizophrenic language irregularities can be understood in linguistic terms. This literature is reviewed and the contrary positions of different authors are highlighted. The clinical presentation of a schizophrenic male is described. In a single interview he produced a set of paragrammatical errors which are noteworthy insofar as they indicate sustained epochs of diminished expressivity. In this sense, they differ from schizophasic deviance, which is described by Lecours and Vanier-Clement (Brain and Language, 3, 516-565, 1976) as an enhanced expressivity cooccurring with intact language competence. They are also partially decodable, which distinguishes them from the schizophrenic segments discussed by Chaika. Analyses of the paragrammatisms indicate disruptions at three discrete representational levels. One involves the formation of abstract speaker intentions, while the second organizes syntagms into some serial form, and the third level takes content words belonging to a particular syntagm and positions them in a syntactic frame. A microgenic model of these representational planes is proposed that is based on the theoretical perspective of Brown, as well as Garrett's investigations of normal speech errors. The model is justified insofar as the paragrammatisms indicate "linguistic regressions" back to more "thought-like" linguistic representations. Moreover, a recapitulation of specific linguistic mappings is demonstrated to occur between processing levels. This microgenetic model represents an extension of previous work in aphasiology insofar as it targets combinatorial rather than selectional processes as primary planes of disruption. 相似文献
182.
Spatial memory over long retention intervals: nonmemorial factors are not necessary for accurate performance on the radial-arm maze by rats 总被引:1,自引:0,他引:1
A. Markowska, O. Buresová, and J. Bures (1983, Behavioral and Neural Biology, 38, 97-112) argued that the apparent persistence of accurate spatial working memory over delays of several hours arises from the formation of response strategies and the use of olfactory stimuli that develop with extended training at long delays. To test this explanation rats with extensive prior training at long delays were forced to enter the first four arms in a random order. On test days, the maze was rotated 180 degrees during the 2-h retention interval to determine whether the rats were using intramaze or extramaze (i.e., spatial) cues to guide their choices. On both rotation and control days, postdelay choices were spatially guided, averaging over 90% correct. Accurate spatial working memory at long delays is a reproducible phenomenon and does not appear to result from nonmemorial artifacts. 相似文献
183.
184.
Causal attributions of shy students (N = 36) were compared with those of a comparison group of students (N = 36) in 10 situations. The major hypothesis was that shy students would have a self-defeating pattern of attributions as compared to the norm group, but only in specific situations. Significant differences between the two groups emerged when explaining outcomes of situations considered to be problematic for shy individuals. Causal attributions may reflect realistic and situation-specific self-perceptions. 相似文献
185.
Michael Friendly Patricia E. Franklin David Hoffman David C. Rubin 《Behavior research methods》1982,14(4):375-399
Imagery and concreteness norms and percentage noun usage were obtained on the 1,080 verbal items from the Toronto Word Pool. Imagery was defined as the rated ease with which a word aroused a mental image, and concreteness was defined in relation to level of abstraction. The degree to which a word was functionally a noun was estimated in a sentence generation task. The mean and standard deviation of the imagery and concreteness ratings for each item are reported together with letter and printed frequency counts for the words and indications of sex differences in the ratings. Additional data in the norms include a grammatical function code derived from dictionary definitions, a percent noun judgment, indexes of statistical approximation to English, and an orthographic neighbor ratio. Validity estimates for the imagery and concreteness ratings are derived from comparisons with scale values drawn from the Paivio, Yuille, and Madigan (1968) noun pool and the Toglia and Battig (1978) norms. 相似文献
186.
187.
Ducklings (5 to 28 days old) were trained to peck a pole on fixed-ratio, fixed-interval, and multiple schedules using brief presentation of an imprinting stimulus as the response-contingent event. Other ducklings of the same age were trained similarly except that reinforcement consisted of access to water. With water reinforcement the typical fixed-ratio (“break-run”), fixed-interval (“scallop”), and multiple schedule response patterns were readily established and consistently maintained. With the imprinting stimulus these schedule effects were inconsistent in some subjects and virtually nonexistent in others, despite extended training. Schedule control with the imprinting stimulus was not improved by the use of a reinforcement signaling procedure which enhances responding reinforced by electrical brain stimulation on intermittent schedules. However, the overall rates of responding and the extinction functions generated after reinforcement with water versus the imprinting stimulus were comparable. These findings imply that control by temporal and discriminative stimuli may be relatively weak when a young organism's behavior is reinforced by presentation of an imprinting stimulus. 相似文献
188.
The ability to see complete objects despite occlusion is critical to humans' visual success. Human vision can amodally complete visual objects that are partially occluded, and modally complete visual objects that occlude other objects. Previous experiments showed that the perceived strength of a completed contour depends on its support ratio: the ratio of the length of the physically specified contour to the total length of the contour. Other experiments showed that human vision prefers to make modal completions as short as possible, an effect known as Petter's rule. The experiment reported here examined the relationship between Petter's rule and support ratio, showing that both affect modal completion in figures of homogeneous color, but that when they compete Petter's rule dominates. Finally, our results confirm that Petter's rule is an effect of relative gap lengths and not of relative size. 相似文献
189.
Over the past three decades, family interventions have become important components of treatment for a number of psychiatric disorders. To date, however, there has been no family treatment designed specifically for borderline personality disorder patients and their relatives. This article describes one short-term family intervention called Dialectical Behavior Therapy-Family Skills Training. Based on Linehan's Dialectical Behavior Therapy (DBT), borderline patients' behavioral patterns are thought to result from a lifelong transaction between emotional vulnerability and invalidating features of the social and familial environment. Individual DBT focuses on reducing individual emotion dysregulation and vulnerability and enhancing individual stability. The complementary family interventions proposed in this article aim to: 1) provide all family members an understanding of borderline behavioral patterns in a clear, nonjudgmental way; 2) enhance the contributions of all family members to a mutually validating environment; and 3) address all family members' emotion regulation and interpersonal skills deficits. 相似文献
190.
R R Marsh H S Hoffman C L Stitt G M Schwartz 《Journal of experimental psychology. Animal behavior processes》1975,1(3):235-244
When either the intensity or frequency spectrum of an approximately 70-db. SPL narrow-band noise was abruptly changed by a small amount, the rat's response to a startle stimulus presented 64 msec later was inhibited. When similar small frequency changes preceded the startle stimulus by ony 5 msec, the latency of the startle response was reduced, but even relatively large changes in intensity of the antecedent stimulus had no effect on response latency. These findings provide added support for the generalization that the neural processes associated with startle are engaged by small changes in the auditory environment. They also point to a measure of separation between the processes responsible for inhibition and those responsible for latency shift. 相似文献