Perceptual constraints on implicit learning of spatial context

If perspective views of an object in two orientations are displayed in alternation, observers will experience the object rotating back and forth in three-dimensional space. Rotational motion is perceived even though only two views are displayed and each view is two-dimensional. The results of 5 experiments converge on the conclusion that the perception of apparent rotational motion produces representations in visual memory corresponding to the spatial structure of the object along its arc of rotation. These representations are view-dependent, preserving information about spatial structure from particular perspectives, but do not preserve low-level perceptual details of the stimulus.     

Informal social support characteristics and utilization of parenting support services among low‐income African American mothers of premature infants

Service delivery efforts to attenuate the risks associated with parenting premature infants in poverty often are compromised because those at greatest risk do not use available parenting support services. Yet, relatively little is known about the networks of support surrounding these parents. This study investigated both the characteristics of informal social support within a sample of 31 low‐income, African American mothers of premature infants at high risk for parenting difficulties and their use of community parenting support services. The findings suggest that mothers had small (M = 4.97, SD = 1.80), but highly mobilized, social support networks consisting primarily of family members. Among six different types of support, informational guidance and parenting support were available from the fewest people in participants' networks. Only 32.3% of the sample was aware of and 16.1% of the sample had ever used formal parenting support services. Participants who had received informal support from more than five people in the last month were significantly more likely to have knowledge about existing community parenting support services than those receiving support from smaller social networks. Patterns of knowledge about and utilization of services were examined with regard to network characteristics, perceived maternal desire for more parenting support opportunities than were available, and presence of special needs in the child. The implications of these findings for parenting support programs are discussed. ©2002 Michigan Association for Infant Mental Health.     

Stress and Coping: A Comparison of Self-Report Measures of Functioning in Families of Young Children with Cerebral Palsy or No Medical Diagnosis

We analyzed data from 87 mothers of children ages 15 to 44 months with cerebral palsy (CP) or no diagnosis, who completed the Dyadic Adjustment Scale, Parenting Stress Index, Support Functions Scale, and Inventory of Social Support. Principal components analysis of the 15 subscales from the 5 measures revealed few cross-measure loadings. Mothers of children with CP (severe or mild) reported higher levels of parenting stress than did mothers of controls. However, cluster analysis of self-report measures yielded a 5-cluster solution, with no diagnostic group differences across clusters. That is, there were no overall differences in self-reported family functioning according to presence or severity of the child's disability. The results are discussed in terms of the organization of family systems and their relationship to child diagnosis. Clinical implications for assessing and working with families are noted.     

The Relationship Between Faith and Well-Being

Despite the considerable literature that documents the existence of a positive relationship between religious faith and individual well-being, there has been little investigation of the mechanisms by which this connection operates. An investigation of this issue, using qualitative research methods and based on classical and contemporary sociological theory, suggests that Christian faith provides its adherents with several tools with which they can combat those circumstances in their lives that are likely to lead to distress and disease. These tools include community, hope, meaning systems, behavioral constraints, and elements of church practice and church life, all of which work together to provide the faithful with a sense of peace that contributes to their well-being.     

Automatic and Controlled Processes in the Analytisis of Hierarchical Structure

Targets are identified faster if they appear at the same level (global vs. local) as the target on the previous trial. This effect has been attributed to a controlled attentional process wherein participants attend to the level containing the target on trial n − 1, thus facilitating performance if target level repeats on trial n. An alternative explanation (Lamb & Yund, 1966) is that automatic activation of level-specific neural mechanisms is responsible. The controlled-process hypothesis predicts better performance whenever target level is predictable, because participants can anticipate, and thus attend to, the appropriate level. The automatic-process hypothesis predicts better performance when target level repeats, regardless of target-level predictability. In the present studies, level repetitions facilitated performance regardless of target-level predictability. The data support the automatic-process explanation of level repetition and other attentional effects. The data illustrate how an automatic process can give rise to performance that seems to reflect more cognitive or strategic mechanisms.