Substance use and mothers’ neural responses to infant cues

Substance use may influence mothers’ responsiveness to their infants and negatively impact the parent–infant relationship. Maternal substance use may co-opt neural circuitry involved in caregiving, thus reducing the salience of infant cues and diminishing the sense of reward experienced by caring for infants. Gaps in understanding exist with regard to the mechanisms by which substance use operates to influence mothers’ processing of infant cues and how this translates to caregiving. Therefore, we examined how substance use might relate to maternal neural responses to infant cues using event-related potentials (ERPs). Substance-using (n = 29) and nonsubstance-using (n = 29) mothers viewed photographs of infant faces and heard recordings of infant vocalizations while electroencephalography was recorded simultaneously. Three specific ERP components were used to examine initial processing of infant faces (N170) and cries (N100), and attentional allocation to infant faces and cries (P300). Substance-using mothers did not discriminate facial affect at early encoding stages (N170), were generally slower to orient to infant cries (N100), showed heightened responses to neutral faces (P300), and failed to adaptively differentiate between high-distress versus low-distress cries (P300). These differences may be important to caregiving behaviors associated with the formation of mother–child attachment. Implications are discussed, as are limitations and future directions.     

Inhibitory Control Deficits in Individuals with Amnestic Mild Cognitive Impairment: a Meta-Analysis

Neuropsychology Review - Amnestic mild cognitive impairment (aMCI) is a prodromal stage of Alzheimer’s disease that is characterized by impairments in episodic memory. Recent evidence has...     

Committed dis(s)idents: participation in radical collective action fosters disidentification with the broader in-group but enhances political identification

The present research examined the hypothesis that participation in radical, but not moderate, action results in disidentification from the broader in-group. Study 1 (N = 98) was a longitudinal study conducted in the context of student protests against tuition fees in Germany and confirmed that participation in radical collective action results in disidentification with the broader in-group (students) whereas participation in moderate collective action does not. Both types of action increased politicized identification. Study 2 (N = 175) manipulated the normativeness of different types of imagined collective actions in the same context and replicated this disidentification effect for radical actions, but only when this action mismatched the broader in-group's norms. This study also indicated that these effects were partially mediated by perceived lack of solidarity and perceived lack of commitment to the cause among the broader in-group. The implications of these findings for understanding radicalization within social movements are discussed.     

How leaders self-regulate their task performance: evidence that power promotes diligence, depletion, and disdain

When leaders perform solitary tasks, do they self-regulate to maximize their effort, or do they reduce effort and conserve their resources? Our model suggests that power motivates self-regulation toward effective performance-unless the task is perceived as unworthy of leaders. Our 1st studies showed that power improves self-regulation and performance, even when resources for self-regulation are low (ego depletion). Additional studies showed that leaders sometimes disdain tasks they deem unworthy, by withholding effort (and therefore performing poorly). Ironically, during ego depletion, leaders skip the appraisal and, therefore, work hard regardless of task suitability, so that depleted leaders sometimes outperform nondepleted ones. Our final studies replicated these patterns with different tasks and even with simple manipulation of framing and perception of the same task (Experiment 5). Experiment 4 also showed that the continued high exertion of leaders when depleted takes a heavy toll, resulting in larger impairments later. The judicious expenditure of self-control resources among powerful people may help them prioritize their efforts to pursue their goals effectively.     

Using a guest- and confederate-delivered token economy to increase employee–guest interactions at a zoo

The present study used a token economy to promote guest greetings by employees at a zoological facility. Guests and confederate guests delivered tokens to zoo employees for making eye contact from 10 ft (3.05 m) away and verbally greeting guests from 5 ft (1.52 m) away (called a 10–5 interaction) and the tokens were exchangeable for small prizes. An ABAB design was used to evaluate the intervention. Results showed increases of 35.3 and 45.0% in correct employee–guest interactions in each intervention phase compared to baseline, thus suggesting that a guest-delivered token economy is an effective way to improve guest greetings. Limitations of the current study and opportunities for future research are discussed.     

Authorship trends in the Journal of Applied Behavior Analysis: An update

The Journal of Applied Behavior Analysis (JABA) is considered the flagship journal for the discipline of applied behavior analysis. Thus, popular research topics and other publication trends within JABA reflect the current cultural and scientific contingencies governing the field of behavior analysis. Researchers have previously quantified a number of authorship trends in JABA (and other behavior-analytic journals) across a number of variables, such as gender identity and sex of author, country of origin, or seniority within the field (Dunlap et al., 1998) to examine demographic and organizational factors associated with successful publication in JABA. These analyses ought to be conducted continuously to monitor trends and detect any potential biases (e.g., sexism). Accordingly, the purpose of the present investigation was to replicate previous research in this area (e.g., Dymond et al., 2000) and provide an update of current publication trends within JABA. Implications for future research and publishing practices are discussed.     

A Longitudinal Test of the Job Demands‐Resources Model among Australian University Academics

A longitudinal test of the Job Demands‐Resources (JD‐R) model of work stress and engagement ( Bakker & Demerouti, 2007 ; Demerouti et al., 2001 ) was conducted in a sample of Australian university academics (N= 296). The aim was to extend the JD‐R model by (1) determining how well job demands (work pressure, academic workload) and job resources (procedural fairness, job autonomy) would predict psychological strain and organisational commitment over a three‐year period, and (2) incorporating longitudinal tests of reversed causation. The results of SEM analyses showed that Time 1 resources directly predicted Time 2 strain and organisational commitment, but that Time 1 demands predicted Time 2 strain only indirectly via job resources. We did not find evidence for reversed causation. We discuss possible mediators of the relationships between working conditions and work stress outcomes, and the practical implications of the results.