Infants' early ability to segment the conversational speech signal predicts later language development: a retrospective analysis

Two studies examined relationships between infants' early speech processing performance and later language and cognitive outcomes. Study 1 found that performance on speech segmentation tasks before 12 months of age related to expressive vocabulary at 24 months. However, performance on other tasks was not related to 2-year vocabulary. Study 2 assessed linguistic and cognitive skills at 4-6 years of age for children who had participated in segmentation studies as infants. Children who had been able to segment words from fluent speech scored higher on language measures, but not general IQ, as preschoolers. Results suggest that speech segmentation ability is an important prerequisite for successful language development, and they offer potential for developing measures to detect language impairment at an earlier age.     

When is sociality congruent with self-care?

Kumar and Epley (2023) argue that people underinvest in spending time, effort, and money on other people, and that consumers' own well-being would improve from increased “sociality.” We pose two questions to enhance understanding of the relationship between sociality and efforts to benefit one's own well-being: (1) when will other-oriented consumption promote versus hinder consumers' own well-being, and (2) what leads consumers to embrace versus forego efforts to improve their well-being (i.e., self-care) that does not involve sociality? We propose that the degree to which the consumer is concerned about incorporating others' preferences, the magnitude of resources involved, and the temporal dynamics of consumption will be relevant factors in addressing these two questions. Future research to explore the proposed three factors and other factors will be important for consumers who seek to improve their well-being as well as marketers who seek to promote it.     

Modern Settlements in Special Needs Education: Segregated Versus Inclusive Education

In the history of special needs education, the distinction between human nature and its social environment has been a controversial matter. The controversy regards whether special needs are primarily caused by the child's psycho-medical body or by cultural concepts of normality and deviance. Settlements of this controversy govern whether the pupil or the educational institution becomes the main point of intervention. In Denmark, the particularities of settlements can be identified by juxtaposing the introduction of intelligence testing in the 1930s with the contemporary policy agenda of inclusion. With intelligence testing, special needs education was to service children whose needs were seen as part of their human nature. Inclusion, in turn, assumes special needs to be stigmatizing cultural labels that need to be abandoned by changing school cultures. Drawing on actor-network theory we can approach such settlements as a product of a modern division between human nature and social environment. Although both these settlements depend on a distinction between human nature and social environment, this distinction generates practical tensions for each settlement.     

有关遗传与精神分裂症的文献评论(上)

本文评论了有关支持精神分裂症遗传理论的心理学文献,评论了四个研究方面:精神分裂症的生理学方面,精神分裂症在总人口中的发病率,精神分裂症在家庭成员中的发病率,以及控制环境对精神分裂症的影响的研究。这个文献没有发现支持遗传理论,而是用心理病理学的社会模型能更好说明。     

Further Support for Multidimensionality Within the Rosenberg Self-Esteem Scale

Although the Rosenberg Self Esteem Scale is one of the most widely used measures of global self esteem, the underlying measurement structure of the items is still debated. In this study the dimensionality of a six item version of the Rosenberg Self Esteem Scale included in the National Population Health Survey of Canada was examined using nested confirmatory factor analyses. The results indicate that the six items measure two correlated dimensions of global self esteem. The first dimension appears to represent a measure of self competence, and the second is interpreted as a measure of self liking. Subsequent tests of predictive power and discriminant validity supported the two dimension interpretation. The two dimensions had substantially different relationships with theoretically related measures of anxiety, negative affect and happiness. In addition to these different correlations, latent variable regressions indicated that the self-competency factor consistently suppressed irrelevant variance in the self liking factor when predicting anxiety, negative affect and happiness.     

Past tense marking in the spontaneous speech of preschool children who do and do not stutter

PurposeThe aim of this study was to identify whether different patterns of errors exist in irregular past-tense verbs in children who stutter (CWS) and children who do not stutter (CWNS).MethodSpontaneous language samples of thirty-one age- and gender-matched pairs of children (total N = 62) between the ages of 24 months and 59 months were analyzed.ResultsResults indicated that children who do and do not stutter over-regularize irregular past-tense verbs (i.e., saying runned for ran) with comparable frequency. However, two nonsignificant trends which suggest possible intra-group differences were noted. First, irregular past tense verbs represented a greater portion of total verbs for CWS than for CWNS. Second, CWS appeared to double-mark (i.e., say ranned for ran) more often than CWNS. Results are discussed in light of theories about the acquisition of the irregular past-tense and about differences in language skills between CWS and CWNS.Educational objectives: After reading this article, the reader will be able to: (a) summarize previous findings about connections between stuttering and language in CWS and CWNS; (b) describe similarities and differences between irregular past-tense verb use and errors in CWS and CWNS; (c) discuss possible connections between the declarative–procedural model and stuttering.     

Measuring lexical diversity in children who stutter: application of vocd

There is growing but equivocal evidence that the language abilities of young children who stutter (CWS) may be depressed when compared to those of their fluent peers. In particular, the lexical skills of CWS have variously been reported to be weaker or stronger than comparison children in a number of recent studies. One source for such disagreement may be the measures used to compute lexical characteristics of these children’s spoken conversations. In this study, we examined the concurrent validity of two measures of lexical diversity in spontaneous language samples, Type-Token Ratio (TTR) and the newly developed utility vocd (Malvern & Richards, 1997), using a standard test of expressive vocabulary as the comparison measure. Findings indicated that vocd values (“D”) correlated well with standardized measures of expressive vocabulary, while TTR values did not. In addition, both the standardized measure and vocd revealed significantly poorer expressive lexical skills of CWS, whereas TTR analyses did not evidence this difference. Results are discussed in relation to the relative strength of vocd over TTR as a method for describing lexical characteristics of the spontaneous language samples of this population.

Educational objectives: The reader will learn about and be able to (1) identify several common measures of conversational vocabulary and the strengths and weaknesses of each, and (2) compare the performance of the young CWS in this study to their normally fluent peers in terms of vocabulary performance on both formal and conversational measures of vocabulary.     

Frequency of verb use in young children who stutter

Several recent studies have suggested that young children who stutter (CWS) tend to show depressed lexical performance relative to peers. Given the developmental literature as well as several studies of verb processing in individuals who stutter, verbs may pose a particular challenge for this group. The purpose of the present study was to examine verb use in CWS. In theory, if young CWS differ in their production of verbs, this finding would partially explain the findings of studies that probed conversational vocabulary skills more generally. Fifteen CWS and 15 children who do not stutter (CWNS) participated in a play-based conversational sample with a parent. Samples were analyzed for the total number of verbs, the number of different verbs, and the proportion of general all-purpose (GAP) verbs within the samples. CWS produced significantly fewer different verbs and total verbs than the CWNS. However, previously reported near-significant differences in utterance length between groups would appear to temper the robustness of this finding. The groups did not differ in the proportion of GAP verbs used, suggesting that the CWS did not over-rely on GAP verbs in conversational language production but rather used these verbs to the same extent as their peers. Educational objectives: As a result of this activity, the participant will be able to: (1) relate the purpose and rationale for examining verb use in children who stutter (CWS); (2) summarize the procedures used to assess verb use and GAP verb use in the present study; (3) explain the findings of the present study; (4) relate findings to the extant literature on lexical diversity in CWS.