Children use canonical sentence schemas: A crosslinguistic study of word order and inflections

We propose that children construct a canonical sentence schema as a preliminary organizing structure for language behavior. The canonical sentence embodies the typical features of complete clauses in the input language, and serves as a framework for the application of productive and perceptual strategies. The canonical sentence schema offers a functional explanation of word-order and inflectional strategies based on the child's attempts to quickly master basic communication skills in his or her language. The present research explores sensitivity to the canonical sentence form and to word-order and inflectional perceptual strategies for comprehending simple transitive sentences in monolingual children aged 2;0 to 4;4 in four languages: English (ordered, uninflectional), Italian (weakly ordered, weakly inflectional), Serbo-Croatian (weakly ordered, inflectional), Turkish (minimally ordered, inflectional). The results show that children fail to respond systematically to sequences that violate the canonical sentence form of their particular language. They develop distinct word-order and inflectional strategies appropriate to the regularities of their language. The early behavioral emergence of linguistically appropriate canonical sentences and processing strategies suggests a behavioral foundation for linguistic constraints on the surface form of sentences.     

A Chinese perspective on Kohlberg's theory of moral development

This essay uses the Chinese culture as an example to underline the culturally specific contextual problems regarding Kohlberg's theory of moral development and to point to a new direction for cross-cultural research in this area. The Western view of man as an autonomous being who makes free and rational choices as a moral agent is clearly reflected in Kohlberg's stages of moral development as well as his methodology. The Confucian view of man as an integral part of an orderly universe with an innate moral sense to maintain harmony is quite different. Further, the preferred mode of resolving human conflict in China is reconciliation and collective decision making rather than individual choice, commitment, and responsibility as in the West. In the light of these fundamental differences in the two cultural traditions, an alternative to Kohlberg's theory is suggested.     

Negative reinforcement and choice in humans

Participants chose between reinforcement schedules differing in delay and/or duration of noise offset. In Experiment 1 it was found that (1) immediate reinforcement was preferred to delayed reinforcement when amounts (durations) of reinforcement were equal; (2) a relatively large reinforcer was preferred to a smaller one when both reinforcers were obtained immediately; and (3) preference for an immediate, small reinforcer versus a delayed, large reinforcer increased as the delay preceding the large reinforcer increased, a sign of “impulsivity”. In Experiment 2, the schedules differed in amount or delay and equal intervals were added either to the constant parameter or the varied parameter. A shift from virtually exclusive preference to indifference occurred in the latter case but not the former, a result supporting a model of self-control that assumes that the value of a schedule depends on the ratio of amount and delay, and that choice between schedules depends on the ratio of these values.     

Some relationships between adaptation and electromyographic activity at laryngeal and masseter sites in stutterers

Cumulative integrated electromyographic (EMG) activity was recorded from laryngeal and masseter sites from ten stutterers during a five trial oral adaptation sequence. Results showed more activity at the laryngeal site than the masseter site. While significant reductions in EMG activity were not found, patterns were shown to be related to the subjects' dysfluency patterns over trials. Results were interpreted as suggesting that reduced muscle activity and adaptation (when they occur) are artifacts of other behavioral modifications resulting from overt motor practice.     

Comments on Thomas and Jamison's “a test of the X-linked genetic hypothesis for sex differences on Piaget's water-level task”

In this paper H. Thomas and W. Jamison's (Developmental Review, 1981, 1, 274–283) formulation and evaluation of an X-linked genetic model for explaining male superiority on Piaget's water horizontality task is examined. Criticisms are leveled against (1) the suitability of the model invoked for explaining the sex difference found, (2) the power of the statistical test used to evaluate the model, and (3) the appropriateness of their correction factors. A research strategy for advancing our understanding of the sex difference in performance at this task is suggested.     

Work roles in death-releated occupations

More occupations than generally realized require the worker to have contact with the dying, the dead, and the bereaved. The opportunity for “leeway” and the desire to provide service are major motivating factors for persons in these positions. The death-related professional, often fatalistic in his own views of his own death, must live up to the social expectations for his role performance while simultaneously being a functioning human being who must encounter death at a personal level and a businessman who must earn his living from working with death-related concerns.     

Response and associative phase components of elaborative prompt effects in children's noun-pair learning

The effects of aural and pictorial elaborative prompts were estimated separately for response and associative phase components of children's nounpair learning. A 20-item list of noun pairs was administered individually to 200 second- and third-grade children by the method of paired-associates. Indices of response learning (free verbal recall and pictorial identification) revealed equivalent effects among prompt conditions whereas measures of associative learning (multiple-choice pictorial-recognition tests) demonstrated substantial performance facilitation as a function of both aural and pictorial elaborative prompts. This outcome was regarded as an unequivocal identification of the locus of elaborative prompt effects in children's nounpair learning.     

Warned reaction times of sociopaths

A warned reaction time (RT) task was employed with eight male sociopaths and eight normal male Ss. A warning light appeared at a variable interval preceding a light to which the S responded with a key press. All Ss received both a regular and an irregular series with warning intervals of 1, 2, 4, 8, and 16 sec. In the regular series, blocks of intervals were presented in an ascending order. In the irregular series each interval followed every other interval equally often. Sociopaths obtained reliably slower RTs than did control Ss, showing a constant decrement across all intervals in the two kinds of series.