1,098 research outputs found

    Semantic grading and its structure

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    "June 7, 1955.""Communications (Linguistics).""Paper read before the Linguistic Society of America, August, 1954.""238"--handwritten on cove

    Neuroethologic differences in sleep deprivation induced by the single- and multiple-platform methods

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    It has been proposed that the multiple-platform method (MP) for desynchronized sleep (DS) deprivation eliminates the stress induced by social isolation and by the restriction of locomotion in the single-platform (SP) method. MP, however, induces a higher increase in plasma corticosterone and ACTH levels than SP. Since deprivation is of heuristic value to identify the functional role of this state of sleep, the objective of the present study was to determine the behavioral differences exhibited by rats during sleep deprivation induced by these two methods. All behavioral patterns exhibited by a group of 7 albino male Wistar rats submitted to 4 days of sleep deprivation by the MP method (15 platforms, spaced 150 mm apart) and by 7 other rats submitted to sleep deprivation by the SP method were recorded in order to elaborate an ethogram. The behavioral patterns were quantitated in 10 replications by naive observers using other groups of 7 rats each submitted to the same deprivation schedule. Each quantification session lasted 35 min and the behavioral patterns presented by each rat over a period of 5 min were counted. The results obtained were: a) rats submitted to the MP method changed platforms at a mean rate of 2.62 ± 1.17 platforms h-1 animal-1; b) the number of episodes of noninteractive waking patterns for the MP animals was significantly higher than that for SP animals (1077 vs 768); c) additional episodes of waking patterns (26.9 ± 18.9 episodes/session) were promoted by social interaction in MP animals; d) the cumulative number of sleep episodes observed in the MP test (311) was significantly lower (chi-square test, 1 d.f., P<0.05) than that observed in the SP test (534); e) rats submitted to the MP test did not show the well-known increase in ambulatory activity observed after the end of the SP test; f) comparison of 6 MP and 6 SP rats showed a significantly shorter latency to the onset of DS in MP rats (7.8 ± 4.3 and 29.0 ± 25.0 min, respectively; Student t-test, P<0.05). We conclude that the social interaction occurring in the MP test generates additional stress since it increases the time of forced wakefulness and reduces the time of rest promoted by synchronized sleep.Universidade Federal de São Paulo (UNIFESP)Universidade Estadual PaulistaUNIFESPSciEL

    The Role Of Extrinsic Feedback In Interlanguage Fossilization

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98419/1/j.1467-1770.1979.tb01075.x.pd

    The language of experience : a study in methodology

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    Cover title"April 30, 1955."At head of title: Communications"696"--handwritten on cover"Since the time this MS has been hectographed a few suggestions have been made, particularly by Ithiel de S. Pool, which will rather improve the paper and which will, therefore, be incorporated in the final copy. Further criticisms and suggestions will be appreciated."Includes bibliographical reference

    On The Irrelevance Of Transformational Grammar To Second Language Pedagogy

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    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/98173/1/j.1467-1770.1969.tb00467.x.pd

    Comment on Gergen's "Social Psychology as History"

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    A recent article by Gergen suggests that social psychology cannot reasonably aspire to the general time-independent laws that are characteristic of the physical sciences. Consideration of this thesis suggests that the underlying rationale may place undue reliance on the effects of psychological enlightenment, and on the individual's needs to demonstrate his behavioral freedom and uniqueness. A tentative generali zation suggests that the processes underlying social behavior may be relatively stable, but that they operate on an endless variety of social contents (conditions) to yield the diverse social behaviors and relation ships that we observe.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68537/2/10.1177_014616727500100207.pd
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