Aftereffects for face attributes with different natural variability: adapter position effects and neural models

Adaptation to distorted faces is commonly interpreted as a shift in the face-space norm for the adapted attribute. This article shows that the size of the aftereffect varies as a function of the distortion level of the adapter. The pattern differed for different facial attributes, increasing with distortion level for symmetric deviations of eye height and decreasing for asymmetric deviations. These results are interpreted in terms of different coding ranges for the 2 facial attributes, arising from differences in eye-height variability in natural face images (large for symmetric, small for asymmetric). Neural models developed in low-level vision also are applied to facial attributes, contrasting a 2-pool (norm-based) and a multichannel (exemplar-based) model. The adapter position effects generally support a norm-based model, as did a finding that perception of stimuli further from the norm than the adapter was shifted in the direction of the norm, rather than repulsed away from the adapter.     

An examination of factors contributing to a reduction in subgroup differences on a constructed-response paper-and-pencil test of scholastic achievement

The authors investigated subgroup differences on a multiple-choice and constructed-response test of scholastic achievement in a sample of 197 African American and 258 White test takers. Although both groups had lower mean scores on the constructed-response test, the results showed a 39% reduction in subgroup differences compared with the multiple-choice test. The results demonstrate that the lower subgroup differences were explained by more favorable test perceptions for African Americans on the constructed-response test. In addition, the two test formats displayed comparable levels of criterion-related validity. The results suggest that the constructed-response test format may be a viable alternative to the traditional multiple-choice test format in efforts to simultaneously use valid predictors of performance and minimize subgroup differences in high-stakes testing.     

Employees’ Adaptability and Perceptions of Change-Related Uncertainty: Implications for Perceived Organizational Support,Job Satisfaction,and Performance

Purpose

The literature on organizational change has increasingly recognized that characteristics of change recipients influence their reactions to workplace change. Yet little is known about the influence of employees’ adaptability and change-related uncertainty on their interpretation of organizational actions. We examined these antecedents and the mediating role of perceived organizational support as explanations for employees’ job satisfaction and performance.

Design/Methodology/Approach

A survey was administered to material handling employees from two organizations. Employees completed measures of individual adaptability, uncertainty experienced regarding changes in the workplace, support received from the organization, and job satisfaction. Performance data were collected from the records of one organization.

Findings

Results from both samples support the role of perceived organizational support as a mediator of the relationship between employees’ adaptability and perceptions of change-related uncertainty and employees’ satisfaction and performance.

Implications

Change is a frequent occurrence in today’s workplace; thus, improving employee satisfaction and performance requires the consideration of change-related perceptions and individuals’ dispositions relevant to change. The present study offers insights regarding how organizations may help improve perceptions of organizational support by reducing perceived uncertainty as well as identifying employees who may need assistance to adapt to workplace changes.

Originality/Value

Despite practitioners’ expressed interest, there is scant research examining employees’ adaptability and change-related uncertainty. We provide the first evidence explaining how and why these variables impact important workplace outcomes and extend existing theory by identifying appraisals of the organization (and not the self) as a mechanism explaining stressor–strain relationships.     

Swimming against the Stream?: Mindfulness as a Psychosocial Research Methodology

In this article, we extend psychosocial research methodology by integrating a breaching experiment, influenced by ethnomethodological sociology, with aspects of mindfulness practice, influenced by Buddhist traditions. We offer an empirical investigation of what happens when researcher-participants subtly “swim against the stream” of normative public social conduct in a capital city setting. Our qualitative analysis explores a single case from a corpus of 172 first-person retrospective accounts of standing still and doing nothing in a busy, public place. We investigate the qualitative aspects of how one researcher-participant arguably adopted a mindful, beginner’s mind orientation toward the flow of psychosocial consciousness. We empirically investigate this psychosocial orientation of mindfulness by integrating Wetherell’s concept of affective-discursive practice with James’ stream of consciousness. Mindfulness offers a specific, embodied reorientation toward psychosocial flows. We discuss the methodological implications and limitations of this reorientation for psychosocial research.     

Functional brain organization for number processing in pre‐verbal infants

Humans are born with the ability to mentally represent the approximate numerosity of a set of objects, but little is known about the brain systems that sub‐serve this ability early in life and their relation to the brain systems underlying symbolic number and mathematics later in development. Here we investigate processing of numerical magnitudes before the acquisition of a symbolic numerical system or even spoken language, by measuring the brain response to numerosity changes in pre‐verbal infants using functional near‐infrared spectroscopy (fNIRS). To do this, we presented infants with two types of numerical stimulus blocks: number change blocks that presented dot arrays alternating in numerosity and no change blocks that presented dot arrays all with the same number. Images were carefully constructed to rule out the possibility that responses to number changes could be due to non‐numerical stimulus properties that tend to co‐vary with number. Interleaved with the two types of numerical blocks were audio‐visual animations designed to increase attention. We observed that number change blocks evoked an increase in oxygenated hemoglobin over a focal right parietal region that was greater than that observed during no change blocks and during audio‐visual attention blocks. The location of this effect was consistent with intra‐parietal activity seen in older children and adults for both symbolic and non‐symbolic numerical tasks. A distinct set of bilateral occipital and middle parietal channels responded more to the attention‐grabbing animations than to either of the types of numerical stimuli, further dissociating the specific right parietal response to number from a more general bilateral visual or attentional response. These results provide the strongest evidence to date that the right parietal cortex is specialized for numerical processing in infancy, as the response to number is dissociated from visual change processing and general attentional processing.