Trend and rhythm analysis of time-series data using complex demodulation

Biological time-series data collected over long intervals generally show combined systematic and periodic fluctuations. Comprehensive analysis of such data requires separation of the trend and rhythmic components. Most available time-series analytic techniques do not explicitly extract the trend, and do implicitly assume the underlying rhythms are simple symmetrical sinusoids, whose amplitude and phase values remain constant throughout the recorded interval. Neither assumption is very accurate when dealing with biological data, and the stationarity assumption in particular becomes harder to defend as experiments extend over days or even weeks. Complex demodulation (CD) is described here as a technique for separation of trend from cyclic components, and multiple complex demodulation (MCD) as a technique for extraction of all possible frequencies in the data set, along with their moment-by-moment amplitude and phase values.     

Sex differences in behavioral and cognitive aspects of decision control

Sex differences in three components of decision control were examined in a series of studies utilizing 4-, 9-, and 14-year-old subjects. These components were actual decision control behavior, the cognitive understanding of the masculine or feminine nature of decision control, and the self-perception of decision control skills. At the behavioral level, boys controlled more decision outcomes than girls, especially at the oldest age grouping. In the area of self-perception, girls were less likely to perceive themselves as decision controllers compared to their male counterparts in the oldest age grouping. As far as general attitudes were concerned, neither boys nor girls equated decision control with masculinity. Results are discussed in terms of the socialization of powerlessness in women.     

Minuchin's structural therapy for Vietnamese Chinese families: A systems perspective

Structural therapy is a popular approach to working with families, but there are both assets and liabilities in applying it when working with various cultures. An illustration of this is presented in a case study of an Indo-Chinese family. The use of specific techniques of structural therapy, as advocated by Minuchin, is examined in the context of the clients' own cultural values. The importance of understanding the cultural background, in this case through Taoist philosophy, is stressed in the summary of findings provided.The author is indebted to Dr. Gerald D. Erickson for his support and guidance in the production of this paper and in the field of clinical work with families.Helen (Yuen) Ko, M.S.W., C.S.W., is affiliated with the Association of Chinese Community Service Workers, and is in private practice at 53 Meadowbank Road, Islington, Ontario M9B 5C7, Canada. Reprint requests should be directed to the author at that address.     

The child as informant: Eliciting linguistic intuitions from young children

In this paper we report an interview technique we have developed to elicit judgments from young children about the well-formedness and referential properties of sentences. Judgments are compared with act-out responses of a group of 20 children ranging in age from 3 years 9 months to 5 years 4 months. We argue that judgment data are more revealing of children's grammars than are traditional performance tasks.     

Female workers' acceptance in traditionally male-dominated blue-collar jobs

This study examined possible differential treatment by and negative attitudes of civilian male co-workers and male supervisors toward civilian female workers in traditionally male-dominated blue-collar jobs. Surveys were completed by 53 male supervisors and 327 male co-workers of four departments of a large government agency. Male supervisors indicated they would not treat female employees differently than they have treated male employees. Male co-workers, however, reported they have treated other male co-workers more favorably than they would treat female co-workers. In addition, supervisors, compared with male co-workers, reported more favorable attitudes toward female workers.     

The effectiveness of different types of pragmatic implications found in commercials to mislead subjects

Statements concerning the truthfulness of claims made in 16 tape-recorded commercials about fictitious products were judged by 40 college students. In half of the commercials a claim was directly asserted while in the other half the claims were pragmatically implied. Pragmatic implications are statements that lead a person to believe something that is neither explicitly stated nor necessarily implied. As expected based upon previous research, subjects often responded to implied claims as if they had been directly asserted (particularly by subjects in the short delay group). In addition, differences were found in the effectiveness of four different types of pragmatic implications for misleading subjects.     

When-questions: A study of how children linguistically encode temporal information

Sixty children between the ages of 4 and 7 years and 10 adults were presented with a series of stories illustrated by five pictures in a comic strip format. Each story was follwed by either a when-, why-, or control question. With respect to the when-questions, some of the stories involved causally related events while others did not. An analysis of the responses supported the hypotheses that causal relationships play an important role in the development of the ability to encode temporal relationships in response to when-questions.This research was supported by PSCBHE Grant No. 6-62123 from the City University of New York to the second author. The authors greatly appreciate the assistance of the directors, teachers, and children of the Chatsworth Avenue Elementary School, the Larchmont Avenue Church Nursery School, the Larchmont Temple Nursery School, and the Little School in Larchmont, New York. We would also like to thank Dr. Louis Hsu for his advice concerning     

Evidence for an anaphoric mechanism within syntactic processing: Some reference relations defy semantic and pragmatic constraints

In three experiments, we examined an interaction between the pronounthey and syntactic analysis. Experiment 1 demonstrates thatthey can slow reading times tois when this verb is visually presented immediately after a sentence fragment ending with an ambiguous expression such asflying kites. This effect seems to involve a coreference assignment linkingthey and the ambiguous expression that influences the syntactic analysis of the latter. Experiments 2 and 3 show that this effect can operate even when coreference betweenthey and the ambiguous expression is implausible. These results support a modular theory of comprehension that includes structurally oriented reference processes with access to some, but not all, of the listener’s knowledge relevant to coreference.