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121.
Greenberg D 《The journal of pastoral care & counseling : JPCC》2006,60(1-2):153-155
122.
A.?L.?McDowell D.?L.?Samuelson B.?S.?Dina P.?E.?GarraghtyEmail author 《Integrative psychological & behavioral science》2004,39(4):307-317
We have shown previously that the antiepileptic phenytoin impairs transfer in an instrumental learning task (Banks et al.,
1999). The present study examined the effects of contextual alterations on appetitive-to-aversive transfer performance of
rats treated with either phenytoin or tang. Adult rats were tested in tone-signaled appetitive and aversive instrumental tasks,
where the animal bar-pressed to obtain a food reward (sugar pellet) or to avoid shock. Rats were trained on the appetitive
task for 31 days. Beginning on the twenty-first day, rats were gavaged with either phenytoin or tang twice daily. Animals
were then transferred to aversive training, with the phenytoin or tang treatment continuing throughout the 25 testing days.
For some animals, contextual changes were introduced as they shifted from appetitive to aversive training, while for other
animals these changes were not made. Phenytoin-treated rats that were presented with changes in context as they transferred
from the appetitive to the aversive task learned the avoidance response to levels substantially higher than drug-treated rats
not presented with the contextual changes. These results indicate that phenytoin impairs avoidance learning following transfer
from the appetitive task, and that this impairment can be eliminated by introducing changes in context at the point of transfer.
In the tang-treated control subjects, on the other hand, there was no improvement in transfer learning performance associated
with the changes in contextual cues. This pattern of results suggests that contextual encoding processes in rats being trained
in an instrumental appetitive-to-aversive paradigm are dramatically affected by phenytoin. 相似文献
123.
Sandak R Mencl WE Frost SJ Rueckl JG Katz L Moore DL Mason SA Fulbright RK Constable RT Pugh KR 《Cognitive, affective & behavioral neuroscience》2004,4(1):67-88
fMRI was used to investigate the separate influences of orthographic, phonological, and semantic processing on the ability
to learn new words and the cortical circuitry recruited to subsequently read those words. In a behavioral session, subjects
acquired familiarity for three sets of pseudowords, attending to orthographic, phonological, or (learned) semantic features.
Transfer effects were measured in an event-related fMRI session as the subjects named trained pseudowords, untrained pseudowords,
and real words. Behaviorally, phonological and semantic training resulted in better learning than did orthographic training.
Neurobiologically, orthographic training did not modulate activation in the main reading regions. Phonological and semantic
training yielded equivalent behavioral facilitation but distinct functional activation patterns, suggesting that the learning
resulting from these two training conditions was driven by different underlying processes. The findings indicate that the
putative ventral visual word form area is sensitive to the phonological structure of words, with phonologically analytic processing
contributing to the specialization of this region. 相似文献
124.
125.
The study explored the association between the perceptions 175 Chilean business students held about their parents' acceptance of academic dishonesty and their self-reports of academic dishonesty. Regressing scores for parental acceptance onto self-reported academic dishonesty indicated it accounted for a small (2.2%) but significant amount of variance beyond demographic and academic performance variables. Effect size analysis based on structure coefficients indicated that parental acceptance was the second best predictor in the equation, suggesting that parental acceptance is a correlate that merits further study. 相似文献
126.
T M Nelson T H Nilsson D J Piercey T Johnson J Frascara S Silva Delano E Susuki Sone M Villalon Bravo 《Perceptual and motor skills》1999,88(2):515-530
Information about letters and the physical structure of language printed in Roman characters was given to children beginning to read. Experimental investigations coupled three alternative graphic modes of printing upper- and lower-case letters with an instructional intervention termed "Alpha-Beta" which provides practice in letter sorting, matching of letters, associative matching, and memory matching. In respect to graphics, Mode A letters were in standard alphabet form. Mode B provided standard letters with each backed by a unique half-tone (Visually Stippled Alphabet); Mode C provided standard letters with each backed by a unique visual texture (Visually Patterned Alphabet). Pre-posttest change in reading readiness was measured using the Metropolitan Readiness Test. In the first study 224 English-speaking 5- to 6-yr.-old children were tested. In the second there were 158 Spanish-speaking girls and boys 6 to 7 years old. It was predicted that Alpha-Beta intervention involving visually patterned alphabet would lead to the greatest increases in readiness scores. This is confirmed in both studies for children low in reading readiness preexperiment. Children high in reading readiness are less affected. The second experiment involved Spanish-speaking children and investigated intervention by Alpha-Beta against a no-intervention control. This confirms the value of Alpha-Beta per se. Possible explanations for the improvements are identified. 相似文献
127.
Geners Ortet Manuel I. Ibez Micaela Moro Fernando Silva Gregory J. Boyle 《Personality and individual differences》1999,27(6):990
Psychometric characteristics of Eysenck's revised P scale were studied in a cross-cultural research. The Spanish version of the Eysenck Personality Questionnaire-Revised (EPQ-R) was administered to a Spanish sample of 527 males and 583 females. Maximum-likelihood factor analyses of the item intercorrelations and Direct Oblimin rotations of the extracted factors were carried out separately for males and females. The results revealed four factors identified as psychoticism (P), extraversion (E), neuroticism (N) and dissimulation/conformity (L). Internal consistency and test–retest reliability coefficients were satisfactory and very similar to the ones found in the original study. Skewness and kurtosis of the P scale distribution were closer to normal than on the original British revised P scale. 相似文献
128.
Francisco J. Silva 《Behavior research methods》1999,31(1):63-73
Shaping, or the method of successive approximations, is widely taught in introductory psychology and the psychology of learning as a procedure for establishing new behavior. This article illustrates a computer-controlled shaping demonstration that allows the user to specify several critical parameters of the shaping process and that then shapes the user’s mouse movements toward an arbitrary virtual (invisible) target on the computer screen. The relative effectiveness of different shaping parameters can be assessed by examining several dependent measures, such as the distance of the cursor from the target across time and the rate at which reinforcers were earned. This demonstration allows students to move beyond the notion that shaping is simply the application of the “hot-and-cold” game and to understand that there is a science underlying the art of shaping. 相似文献
129.
Overshadowed by more popular disciplines, the study of learning seems to have lost its prominent place in the undergraduate psychology curriculum. In the first part of this essay, we argue that one reason for this state of affairs is the current content of psychology of learning courses, namely, its disproportionate emphasis on facts, procedures, and everyday examples at the expense of functional and conceptual investigations. In the second part of the essay, we outline an alternative approach to the teaching of learning, one that emphasizes basic contents such as the conceptualization of learning as a biological adaptation or the study of temporal regulation, critical methodological issues such as the logic of experimental designs or the difficulties of measuring behavior, and broad epistemological problems such as the role of hypothetical constructs, the advantages of quantitative reasoning, or the origins of knowledge and its integration. By using learning as a means towards more fundamental ends, the splendor of the discipline and its prominent place in the undergraduate curriculum may be restored. 相似文献
130.
Maria Do Ceu Taveira M. Carolina Silva Maria Luisa Rodriguez Jose Maia 《British Journal of Guidance & Counselling》1998,26(1):89-104
The effects of gender, age and school grade on several career exploration dimensions measured by the Career Exploration Survey were investigated. Subjects were high school students facing an imminent career decision. Regression analyses indicated that sex and grade-level were the most significant and prevailing individual characteristics related to the adolescents' career exploration behaviours, reactions and beliefs. Implications for career exploration interventions are discussed. 相似文献