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121.
Two experiments investigated the effects of shifting from either nonreinforcement or partial reinforcement (PRF) to continuous reinforcement conditions (CRF). In the first experiment, three groups of rats were given food reinforcement under CRF conditions in a runway followed by regular extinction trials (RE), extinction trials where Ss were delayed for 30 sec before entering the empty goal box (DE), or CRF trials where Ss were delayed for 30 sec before entering the baited goal box (DF). Then all Ss were run on the delayed reinforcement condition (DF). In the final delayed reinforcement condition, group DE ran significantly faster than group DF, reflecting positive contrast. In the second experiment, four groups of rats were trained in a runway to receive either 4% or 18% sucrose reinforcers under either PRF or CRF conditions. Then all Ss were transferred to a Skinner box and bar presses were continuously reinforced, with each S continuing to receive the same sucrose concentration as before. The former PRF Ss, regardless of the reinforcer, bar pressed at a significantly higher rate in the Skinner box than the former CRF Ss. The evidence seemed to favor the view that the effectiveness of a reinforcer is not an absolute, unchanging quantity but rather depends on the historical context in which the reinforcer occurs. 相似文献
122.
Alwin Stegeman Tam T. T. Lam 《The British journal of mathematical and statistical psychology》2016,69(1):1-19
We consider multi‐set data consisting of observations, k = 1,…, K (e.g., subject scores), on J variables in K different samples. We introduce a factor model for the J × J covariance matrices , k = 1,…, K, where the common part is modelled by Parafac2 and the unique variances , k = 1,…, K, are diagonal. The Parafac2 model implies a common loadings matrix that is rescaled for each k, and a common factor correlation matrix. We estimate the unique variances by minimum rank factor analysis on for each k. The factors can be chosen orthogonal or oblique. We present a novel algorithm to estimate the Parafac2 part and demonstrate its performance in a simulation study. Also, we fit our model to a data set in the literature. Our model is easy to estimate and interpret. The unique variances, the factor correlation matrix and the communalities are guaranteed to be proper, and a percentage of explained common variance can be computed for each k. Also, the Parafac2 part is rotationally unique under mild conditions. 相似文献
123.
Jung in education: a review of historical and contemporary contributions from analytical psychology to the field of education
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Thomas Gitz‐Johansen 《The Journal of analytical psychology》2016,61(3):365-384
The available literature on the influence of Jungian thought on the theory and practice of education leaves the impression that although the work of Carl Jung and analytical psychology have much to offer the field of education, the Jungian influence has so far been slight. While this has certainly been true, the last decade or so has nevertheless witnessed an increased scholarly interest in exploring how analytical psychology may inform and inspire the field of education. As an explanation for this burgeoning interest in Jung, several of the contemporary contributors mention that analytical psychology has the potential of functioning as a counterbalance to the tendencies in Western societies to focus on measurable learning targets and increasingly standardized measures of teaching and assessment. It seems pertinent then to gain an overview of how analytical psychology has so far inspired the field of education and how it may fruitfully continue do so in the future. To this end this paper is structured chronologically, starting with the different phases of Jung's own engagement with the field of education and ending with later post‐Jungian applications of his concepts and ideas to education. 相似文献
124.
Steven L. Lancaster Sadie E. Larsen 《Journal of aggression, maltreatment & trauma》2016,25(9):1006-1018
Researchers have identified peritraumatic emotions as important predictors of who will develop posttraumatic stress disorder (PTSD) symptoms. However, such investigations have not examined full profiles of emotions, perhaps because of the typical emphasis on fear or other Criterion A2 emotions. Such an examination could help us identify which peritraumatic emotions are prominent, and how they relate to important posttrauma outcomes. Thus, the aim of this study was to identify distinct profiles of peritraumatic emotions and their correlates using a comprehensive survey of peri- and posttraumatic reactions. We conducted a latent profile analysis of peritraumatic emotions in 398 undergraduate students who reported a DSM–IV A1 trauma and then compared the resulting profiles on trauma type, PTSD, depression, and posttraumatic cognitions. Six distinct profiles emerged: 3 had consistently low, medium, or high levels across the range of emotions, with 3 others primarily characterized by low shame and guilt, high anger and guilt, and low guilt. These profiles significantly differed in terms of trauma type, PTSD, depression, and posttraumatic cognitions. In particular, profiles with high levels of anger, shame, and guilt were consistently related to overall worse functioning. Importantly, fear and associated emotions did not differentiate between profiles. These results have important implications for the phenomenology of posttrauma emotional reactions and strongly suggest that the clinical assessment of traumatic experiences go beyond fear-based conceptualizations. 相似文献
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This experiment investigated contextual diversity effects on novel word learning in English as a second language (L2). A group of advanced English speakers, whose native language was Spanish, participated in the study. Participants learned the meaning of real but obscure words that were embedded in either two or 12 different sentences and learned over two days (frequency of exposure was kept constant). On day three, participants were tested using reading aloud and semantic decision tasks. The results showed that participants learned the meaning of words in both conditions fairly well as revealed by their accuracy in the semantic decision task. However, words experienced in 12 different contexts generated more accurate and faster reaction times (RTs), suggesting the acquisition of more robust semantic representations. Strikingly, reading latencies were also faster for the 12-sentence condition, which might imply that semantics has an effect on reading newly learned words in English as a second language. These results are discussed and accommodated in view of the DRC and the PDP models of single-word reading. 相似文献
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