Psychological and organizational aspects of computer-aided manufacturing

This review examines some of the psychological and organizational aspects of computer-aided manufacturing. It provides a selective review of the literature, a summary of our own research, and some suggestions on prospects for future research and development into the links between IT and behavior.     

Instrument inferences and verb schemata

Five studies employed a Stroop paradigm to examine the activation of instruments in sentence comprehension. Two types of instruments were studied, tools (e.g., spoon, hammer) and body parts (e.g., hand, wing). For example, is the concept “broom” activated by the sentence “The man swept the floor,” or is the concept “wing” activated by the sentence “The duck flew over the pond”? Earlier studies have suggested that implicit instruments are not encoded in the underlying representation of a sentence during comprehension. The first four studies in the present paper reveal no evidence that abstract knowledge of the instruments is even activated. In the fifth study, the Stroop task reveals an effect if subjects are instructed to generate implicit instruments, although a facilitatory (rather than an inhibitory) effect is obtained.     

Contributions to Global Self-Esteem: The Role of Importance Attached to Self-Concepts Associated with the Five-Factor Model

Previous research has attempted to clarify the relations that one's self-concepts have with one's global self-esteem. One hypothesis that has received the most attention to date is the view that characteristic attributes that an individual regards as especially important for his or her self-concepts exert the greatest influence on self-esteem. In an investigation of this hypothesis, 375 college undergraduates completed measures of global self-esteem as well as rating scales that assessed self-concepts and the importance attached to these self-concepts in the maintenance of self-esteem. The self-concept and importance domains examined corresponded to the five-factor model (FFM) personality dimensions. Consistent with previous research, importance ratings attached to self-concepts were not found to moderate the relation between self-concepts and self-esteem. Rather, ratings on self-concepts alone accounted for a substantial proportion of variance (53.3%) in self-esteem scores. Bivariate correlations based on FFM dimension scores and self-esteem scores revealed consistent positive associations. Hierarchical regression analyses indicated that among the FFM dimensions, self-concept ratings for emotional stability (vs neuroticism), extraversion, and agreeableness significantly predicted self-esteem.     

Observer pitch and roll influence: The rod and frame illusion

Observers misperceive the orientation of a vertical rod when it is viewed in the context of a tilted frame (therod and frame illusion, or RFI). The pitch and roll of the surrounding surfaces have independent influences on this illusion (Nelson & Prinzmetal, 2003). Experiment 1 measured the RFI when the pitch and roll of the floor that supported the observer was varied, and the observer was either seated in a chair or standing upright. There were additive influences of pitch and roll on the RFI of seated but not standing observers. Experiments 2 and 3 decoupled body roll and head roll in order to isolate the vestibular and proprioceptive contributions to these effects. The results are interpreted in support of a hierarchy of influence on the RFI: Visual input is given top priority, followed by vestibular input, and then proprioceptive input.     

Nontraditional family romance

Family stories lie at the heart of psychoanalytic developmental theory and psychoanalytic clinical technique, but whose family? Increasingly, lesbian and gay families, multiparent families, and single-parent families are relying on modern reproductive technologies to form families. The contemplation of these nontraditional families and the vicissitudes of contemporary reproduction lead to an unknowing of what families are, including the ways in which psychoanalysts configure the family within developmental theory. This article focuses on the stories that families tell in order to account for their formation--stories that include narratives about parental union, parental sexuality, and conception. The author addresses three constructs that inform family stories and that require rethinking in light of the category crises posed by and for the nontraditional family: (1) normative logic, (2) family reverie and the construction of a family romance, and (3) the primal scene. These constructs are examined in tandem with detailed clinical material taken from the psychotherapy of a seven-year-old boy and his two mothers.     

Deregulated semantic cognition contributes to object‐use deficits in Alzheimer's disease: A comparison with semantic aphasia and semantic dementia

Executive control is impaired from the early stages of Alzheimer's Disease (AD) and this produces deregulated semantic cognition (Corbett, Jefferies, Burns, & Lambon Ralph, 2012 ; Perry, Watson, & Hodges, 2000 ). While control deficits should affect semantic retrieval across all modalities, previous studies have typically focused on verbal semantic tasks. Even when non‐verbal semantic tasks have been used, these have typically employed simple picture‐matching tasks, which may be influenced by abnormalities in covert naming. Therefore, in the present study, we examined 10 patients with AD on a battery of object‐use tasks, in order to advance our understanding of the origins of non‐verbal semantic deficits in this population. The AD patients’ deficits were contrasted with previously published performance on the same tasks within two additional groups of patients, displaying either semantic degradation (semantic dementia) or deregulation of semantic retrieval (semantic aphasia; Corbett, Jefferies, Ehsan, & Lambon Ralph, 2009 ). While overall accuracy was comparable to the scores in both other groups, the AD patients’ object‐use impairment most closely resembled that observed in SA; they exhibited poorer performance on comprehension tasks that placed strong demands on executive control. A similar pattern was observed in the expressive domain: the AD and SA groups were relatively good at straightforward object use compared to executively demanding, mechanical puzzles. Error types also differed: while all patients omitted essential actions, the SA and AD groups’ demonstrations also featured unrelated intrusions. An association between AD patients’ object use and their scores on standard executive measures suggested that control deficits contributed to their non‐verbal semantic deficits. Moreover, in a task specifically designed to manipulate executive demand, patients with AD (and SA) exhibited difficulty in thinking flexibly about the non‐canonical uses of everyday objects, especially when distracted by semantically related objects. This study provides converging evidence for the notion that a failure of regulatory control contributes to multimodal semantic impairment in AD and uniquely demonstrates this pattern for the highly non‐verbal domain of object use.     

Factors influencing young children's risk of unintentional injury: Parenting style and strategies for teaching about home safety

This study examined mothers' teaching about home-safety issues to 24–30 month and 36–42 month old children, explored the relationship of teaching strategies to parenting styles, and assessed how these factors are related to children's risk of unintentional injury. A structured interview assessed home-safety issues relevant to falls, burns, cuts, poisoning, and suffocation/strangulation/choking. Mothers identified safety issues relevant to her child, and indicated the type and extent to which she utilized teaching as a strategy to address each safety issue. Standardized questionnaires provided information about parenting style and children's history of injuries. Results revealed that mothers' endorsements of home-safety issues did not vary with child age, mothers used teaching to manage safety issues for all types of injuries, and type of teaching strategy (explanations, rules, behavior modification) varied with parenting style. Greater use of explaining and less rule usage was linked to permissive parenting; these teaching strategies predicted children's medically-attended injury among highly-permissive mothers. Thus, teaching about safety is a common risk-management strategy mothers use to address hazards in the home. However, the specific type of teaching strategy used varies with parenting style, which has implications for children's risk of injury.     

Change and stability in sexism among college students: A three-year panel study

Results are reported of a 3-year panel study of sex-role attitude changes among Ball State University students. Two questions were posed: (1) To what extent do students change their sex-role attitudes? (2) What types of students are more likely to change their attitudes? Contrary to expectations, students did not become progressively less sexist each year they were in college. Apparently, changes in student sex-role attitudes were more reflective of changes in local public opinion rather than following the Bennington College pattern. An important finding of the study is that those who were initially the most sexist displayed the greatest degree of change in their attitudes. A mixed pattern prevails with regard to relationships between changes in attitudes and background characteristics, personal orientations, and political orientations.