Plaster or Plasticity: Are Adult Work Experiences Associated with Personality Change in Women?

ABSTRACT The present study tested whether work experiences were associated with personality change across two periods of adulthood (age 21 to 27 and 27 to 43) in a longitudinal sample of women ( N = 81). Two competing theoretical perspectives were tested: the plaster theory, which claims that personality does not change after age 30, and the plasticity theory, which claims that personality can change at any time in adulthood. Evidence was found for both correlational consistency of personality in adulthood and for the socialization effect of work on personality change. Work experiences were not associated with personality change in young adulthood but were associated with changes between young adulthood and midlife. In the period from age 27 to age 43 women who worked more became more agentic, and women who were more successful in their work became both more agentic and more normadhering. This pattern of associations between personality change and work experience provided support for the plasticity model of personality change.     

Toward a Unified Model of Lexical Acquisition and Lexical Access

Much effort has gone into constructing models of how children segment speech and thereby discover the words of their language. Much effort has also gone into constructing models of how adults access their mental lexicons and thereby segment speech into words. In this paper, I explore the possibility of a model that could account for both word discovery by children and on-line segmentation by adults. In particular, I discuss extensions to the distributional regularity (DR) model of Brent and Cartwright (1996) that could yield an account of on-line segmentation as well as word discovery.     

An assessment of cerebral dominance in language-disordered children via a time-sharing paradigm

A time-sharing paradigm was used to assess language lateralization in language-disordered and normal children aged 4–7 years. Several expressive language tasks as well as a vocal, but nonlinguistic, task were administered concurrently with unimanual finger tapping. Dependent variables were percent disruption scores and number of syllables produced per concurrent trial. All language concurrent tasks produced tapping reductions for both hands for both groups. This result contrasts to similar time-sharing studies claiming asymmetrical interference and hence language lateralization in children (N. White & M. Kinsbourne, 1980, Brain and Language, 10, 215–223; J. Obrzut, G. Hynd, A. Obrzut, & J. Leitgeb, 1980, Brain and Language, 11, 181–194). A multiple regression analysis revealed a significant interaction effect differentiating language-disordered from normal children. Normals exhibited a parallel response pattern for speech and tapping (both increased or decreased in rate) under all lateralization conditions. Language-disordered children exhibited an inverse response pattern (e.g., if speech output increased, tapping rate decreased) only under left-hemisphere time-sharing.     

“But that's not really mean”: Competing in a cooperative mode

Girls' games are widely perceived as impediments to the goal of a more equitable society because they are simpler and less competitive than boys' games, and foster skills, attitudes, and competencies that are inappropriate to the achievement of higher status adult roles. Girls' more cooperative social orientation, their concern for being “nice,” and for relationships with small groups of friends has been cited to explain why girls avoid more complex, competitive games. Observations from an ethnographic study of one girls' play group are used to illustrate that this type of social orientation is not incompatible with competition among girls. It shapes their ways of competing, not whether they compete at all. The girls in this study used a stereotypically feminine rhetoric of “nice” and “friends” to support, and even demand, aggressive competition among players.     

Contextual constraints on usage of cognitive words

The conversations of 36 41/2 to 5-year-olds differing in race (black and white) and social class (professional and working class) and the adults with whom they spoke were tape-recorded during play and teaching time at preschool and dinnertime at home. Usage of cognitive words was analyzed for six levels of meaning that differed in depth of processing from reference to (1) perception and attention, (2) recognition, (3) fact recall, (4) understanding, (5) metacognition, and (6) evaluation of presuppositions. Although the rank order of usage was the same, children devoted less of their lexicon to the three higher levels of meaning than adults. Even in adults, perceptual references predominated. Use of higher-level meaning was less prominent in school and in the black working-class population. There were significant correlations between exposure to adult conversations with high-level meaning and child use of those meanings, and between the diversity of cognitive vocabulary in children and adults, but those correlations were smallest in the black working-class population.Funds to the project on which this paper is based were given by The Carnegie Corporation of New York to William S. Hall. The authors wish to thank the Computer Science Center of the University of Maryland for funds for data analysis.     

Spontaneous alternation behavior in hamsters

Male and female golden hamsters spontaneously alternated successive entries of T-maze arms (derived from a + − maze) rather than body turns during a series of eight consecutive trials except when not confined to the arm chosen on each trial. Only unconfined males failed to alternate on their first opportunity. Confinement to an entered arm for 30 seconds had no effect on females but increased alternation in males. Increasing the visual discriminability of the arms had no effect on alternation in either sex. It was concluded that spontaneous alternation behavior in hamsters depended upon whether or not they were confined to a chosen arm and their sex. It is possible that the phenomenon was escape-related.