Tacting and manding in correspondence training: effects of child selection of verbalization.

We investigated correspondence between verbal and nonverbal behavior in preschool children in a play setting. Four children (4 years old) participated in a multiple baseline across subjects design. Children were asked what toy(s) they were going to play with during an immediately upcoming play period. When no contingencies were placed on either verbal or nonverbal behavior, children showed high rates of correspondence. When children were required to verbalize about a toy from a restricted range of infrequently used toys, but no contingencies were placed on correspondence, low rates of correspondence were observed. High rates of correspondence were noted when reinforcement was contingent on it. Results are discussed in terms of tacting and manding.     

Mapping moral motives: Approach, avoidance, and political orientation

Recent critiques of moral psychology and the contemporary culture wars highlight the need for a better understanding of diverse moral perspectives. A model of moral motives is proposed. The fundamental approach–avoidance distinction in motivation is crossed with self-other focus to create four moral motives: Self-Restraint (avoidance-self), Social Order (avoidance-other), Self-Reliance (approach-self), and Social Justice (approach-other). Three studies explored these motives in the context of political orientation. Overall, political conservatism was associated with avoidance motives and liberalism with approach motives. Approach–avoidance motives were also associated with distinct patterns of results regarding authoritarianism, social dominance, and positions on contemporary social issues. Responses of campus political groups demonstrated the utility of the moral motives in providing a more nuanced view of politics that also takes into account the model’s second dimension, for an emphasis on Self focus (personality responsibility) versus Other focus (social responsibility) further distinguished between conservative groups. Moral and political implications are discussed.     

ERP evidence for telicity effects on syntactic processing in garden-path sentences

Verbs contain multifaceted information about both the semantics of an action, and potential argument structures. Linguistic theory classifies verbs according to whether the denoted action has an inherent (telic) end-point (fall, awaken), or whether it is considered homogenous, or atelic (read, worship). The aim of our study was to examine how this distinction influences on-line sentence processing, investigating the effects of verbal telicity on the ease of syntactic re-analysis of Object reduced relative clauses. Event-related brain potentials (ERPs) were recorded from 22 English speakers as they read sentences in which the main verb was either telic or atelic, e.g., “The actress awakened/worshipped by the writer left in a hurry”. ERPs elicited by telic and atelic verbs, the preposition “by” introducing the second argument (Agent), and the second argument itself, e.g., “writer”, were compared. Additionally, participants were grouped according to receptive syntactic proficiency: normal (NP) or high (HP). ERPs from the NP group first diverged at the second argument, with the atelic condition eliciting larger amplitude negativity at the N100, and continuing to the P200 interval. In contrast, ERPs from the HP group first diverged earlier in the sentence, on the word “by”. ERPs elicited by “by” in the atelic condition were also characterized by increased negativity, in this case significant at P200 and Anterior Negativity between 320 and 500 ms post stimulus onset. Our results support the postulated conceptual/semantic distinction underlying the two verb categories, and demonstrate that world-knowledge about actions designated by verbs and syntactic proficiency are reflected in on-line processing of sentence structure.     

Dispositional and task-specific social-cognitive determinants of physical effort perseverance

The authors performed 3 studies to investigate the effects of social-cognitive variables on physical effort perseverance. Linear hierarchical regressions indicated that task-specific variables and perceived ability or competence accounted for the majority of perseverance variance in all 3 studies. The strongest single predictors in this cluster of variables were perceived competence, confidence, and readiness to invest effort. Physical self-health and ability accounted for a lesser portion of effort perseverance variance, with self-presentation confidence being the major single predictor in this cluster. The goal orientation cluster accounted for the least amount of effort perseverance variance. Together with task-specific confidence and the readiness to invest effort, as well as determination and commitment and competence, the findings support the contention that task-specific efficacious beliefs to a large extent determine persistence and endurance behaviors.     

Facing up to Complexity: Implications for Our Social Experiments

Biological systems are highly complex, and for this reason there is a considerable degree of uncertainty as to the consequences of making significant interventions into their workings. Since a number of new technologies are already impinging on living systems, including our bodies, many of us have become participants in large-scale “social experiments”. I will discuss biological complexity and its relevance to the technologies that brought us BSE/vCJD and the controversy over GM foods. Then I will consider some of the complexities of our social dynamics, and argue for making a shift from using the precautionary principle to employing the approach of evaluating the introduction of new technologies by conceiving of them as social experiments.     

Assessment of information content in visual signal: analysis of optical flow fractal complexity

We make a first attempt at distinguishing an information-carrying visual signal by comparing visual characteristics of American Sign Language to everyday human motion, to identify what clues might be available in one but not in the other. The comparison indicated significantly higher fractal complexity in sign language across tested frequency bands (0.01–15?Hz), as compared to everyday motion. A comparison of our results with other work showing high fractal complexity in the speech signal allows us to suggest the underlying properties of linguistic signals which allow babies to “tune into” a specific channel, or modality, during language acquisition.     

WOMEN'S PSYCHOLOGICAL ADJUSTMENT FOLLOWING EMERGENCY CESAREAN VERSUS VAGINAL DELIVERY

The present study was designed to investigate possible differences in psychological adjustment and satisfaction between women delivering vaginally and those delivering by emergency cesarean section. Women's satisfaction with the birth experience was distinguished from postpartum psychological adjustment, as measured by depression, anxiety, and confidence in mothering ability. Twenty-two women who delivered vaginally and twenty-two women who delivered by emergency cesarean section were selected according to stringent criteria, to control for factors known to be associated with positive cesarean outcomes. Significant differences were found in level of satisfaction, with cesarean mothers reporting less satisfaction with the delivery than vaginal mothers. However, no differences were found between the groups on the three measures of psychological adjustment. Under optimal conditions, cesarean deliveries are not associated with adverse early postpartum psychological adjustment.