The role of perspective in identifying domains of reference

We used the contrastive expectation associated with scalar adjectives to examine whether listeners are sensitive to the distinction between common and privileged information during real-time reference resolution. Our results show that listeners used this distinction to narrow the set of potential referents to objects with contrasts in common ground from the earliest moments. These results extend previous evidence that ground information influences real-time language processing by showing that the distinction between common and privileged information is used without being triggered by unusual circumstances.     

The effects of curvature on haptic judgments of extent in sighted and blind people

A series of experiments was carried out to examine the effect of curvature on haptic judgments of extent in sighted and blind individuals. Experiment 1 showed that diameters connecting the endpoints of semicircular lines were underestimated with respect to straight lines, but failed to show an effect of visual experience on length judgments. In experiment 2 we tested are lengths. The effects of curvature on perceived path length were weaker, but were still present in this experiment. Visual experience had no effect on path length judgments. Another experiment was performed to examine the effect of repeated tracing (1, 5, 9, or unlimited number of traces) on judgments of the lengths of straight lines and diameters of semicircles. Judgments of extent were more accurate when subjects engaged in larger numbers of traces. There was no effect of number of traces on curve-height judgments, suggesting that subjects were not using height estimates to judge diameters of semicircles. In a further experiment we tested the effect of number of traces on curves that varied in height. Restricting subjects to a single trace magnified the effect of path length on judgments of the distance between the endpoints of curves. Additional experiments showed that curvature effects on diameter judgments were not eliminated when stimuli were in the frontal plane or when the curves were explored with the use of two hands. Arm support had no effect on judged length in experiment 7. A final experiment showed a robust horizontal vertical illusion in haptic perception of convex curves, with overestimation of the heights of the curves compared with their widths. The practical and theoretical implications of the results are discussed.     

Discerning the Division of Cognitive Labor: An Emerging Understanding of How Knowledge Is Clustered in Other Minds

The division of cognitive labor is fundamental to all cultures. Adults have a strong sense of how knowledge is clustered in the world around them and use that sense to access additional information, defer to relevant experts, and ground their own incomplete understandings. One prominent way of clustering knowledge is by disciplines similar to those that comprise the natural and social sciences. Seven studies explored an emerging sense of these discipline-based ways of clustering of knowledge. Even 5-year-olds could cluster knowledge in a manner roughly corresponding to the departments of natural and social sciences in a university, doing so without any explicit awareness of those academic disciplines. But this awareness is fragile early on and competes with other ways of clustering knowledge. Over the next few years, children come to see discipline-based clusters as having a privileged status, one that may be linked to increasingly sophisticated assumptions about essences for natural kinds. Possible mechanisms for this developmental shift are examined.     

Anger style, psychopathology, and regional brain activity

Depression and anxiety often involve high levels of trait anger and disturbances in anger expression. Reported anger experience and outward anger expression have recently been associated with left-biased asymmetry of frontal cortical activity, assumed to reflect approach motivation. However, different styles of anger expression could presumably involve different brain mechanisms and/or interact with psychopathology to produce various patterns of brain asymmetry. The present study explored these issues by comparing resting regional electroencephalographic activity in participants high in trait anger who differed in anger expression style (high anger-in, high anger-out, both) and participants low in trait anger, with depression and anxiety systematically assessed. Trait anger, not anger-in or anger-out, predicted left-biased asymmetry at medial frontal EEG sites. The anger-in group reported higher levels of anxious apprehension than did the anger-out group. Furthermore, anxious apprehension moderated the relationship between trait anger, anger-in, and asymmetry in favor of the left hemisphere. Results suggest that motivational direction is not always the driving force behind the relationship of anger and left frontal asymmetry. Findings also support a distinction between anxious apprehension and anxious arousal.     

Depression and anxious apprehension distinguish frontocingulate cortical activity during top-down attentional control

A network consisting of left dorsolateral prefrontal cortex (LDLPFC) and dorsal anterior cingulate cortex (dACC) has been implicated in top-down attentional control. Few studies have systematically investigated how this network is altered in psychopathology, despite evidence that depression and anxiety are associated with attentional control impairments. Functional MRI and dense-array event-related brain potential (ERP) data were collected in separate sessions from 100 participants during a color-word Stroop task. Functional MRI results guided ERP source modeling to characterize the time course of activity in LDLPFC (300-440 ms) and dACC (520-680 ms). At low levels of depression, LDLPFC activity was indirectly related to Stroop interference and only via dACC activity. In contrast, at high levels of depression, dACC did not play an intervening role, and increased LDLPFC activity was directly related to decreased Stroop interference. Specific to high levels of anxious apprehension, higher dACC activity was related to more Stroop interference. Results indicate that depression and anxious apprehension modulate temporally and functionally distinct aspects of the frontocingulate network involved in top-down attention control.     

What will I be? The role of temporal perspective in predictions of affect, traits, and self-narratives

This article examined the effect of temporal perspective on the multifaceted future self (i.e., affect, traits, and self-narratives). Participants imagined themselves in the near versus distant future, and subsequently predicted their affect (Experiment 1), traits (Experiment 2), and naturalistic self-concepts (Experiment 3). Drawing from the Construal Level Theory and self-enhancement literatures, we hypothesized and found across three experiments that predictions of one's self in the distant future are more positive than predictions of one's self in the near future. Furthermore, building upon literature on the existence of normative and culturally sanctioned implicit theories of positive growth throughout the life span, we hypothesized and found that increased temporal distance yielded less variable predictions of affect, traits, and self-narratives (all three experiments) and that higher-level attributions mediated the effect of temporal perspective on the positivity of self-narratives (Experiment 3) and that time distance leads to more positive and less variable future selves.     

Implementation of a mental health consultation model and its impact on early childhood teachers' efficacy and competence

Early childhood mental health (MH) consultants work closely with childcare teachers onsite to serve as a resource for childcare providers as they foster and enhance children's early development. The increase in the quality of care that can be supported through an early childhood MH consultation program makes this type of consultation an optimal tool for enhancing the childcare environment and overall child development. This article details the initial launch of the MH consultation program to childcare centers in the state of Louisiana. Analyses support the assertions that (a) a model of MH consultation can be implemented successfully at a statewide level, (b) MH consultation is associated with an increase in teacher self‐efficacy, and (c) teachers' report that the MH consultation increased their competence in specific areas related to children's socioemotional development. Analyses indicate that there is a differential impact on teachers based on their age and level of experience. The clinical implications of these findings are discussed.     

Semantic relativism and ways of knowing

Synthese - There is a long-standing view in epistemology that perception is a way of knowing (WOK). There is a less long-standing but increasingly popular view that knowledge attributions have a...     

On a Generalization of Local Independence in Item Response Theory Based on Knowledge Space Theory

Psychometrika - Knowledge space theory (KST) structures are introduced within item response theory (IRT) as a possible way to model local dependence between items. The aim of this paper is...