Retrospective reports of dream characteristics and preferences for organic vs. junk foods

The authors investigated correlations between retrospective dream characteristics, food preferences, and eating attitudes. Graduate students (7 men, 42 women) at Santa Clara University were administered the MEGA food scale and the KJP Dream Inventory. High intake of organic food was positively correlated with reports of multiple dream factors. Conversely, high scores on preferences for fast food, potato chips, and carbohydrates were negatively correlated with several factors. Findings are discussed in terms of the hypothesis that certain foods may influence dreaming.     

Functional MRI of Language in Aphasia: A Review of the Literature and the Methodological Challenges

Animal analogue studies show that damaged adult brains reorganize to accommodate compromised functions. In the human arena, functional magnetic resonance imaging (fMRI) and other functional neuroimaging techniques have been used to study reorganization of language substrates in aphasia. The resulting controversy regarding whether the right or the left hemisphere supports language recovery and treatment progress must be reframed. A more appropriate question is when left-hemisphere mechanisms and when right-hemisphere mechanisms support recovery of language functions. Small lesions generally lead to good recoveries supported by left-hemisphere mechanisms. However, when too much language eloquent cortex is damaged, right-hemisphere structures may provide the better substrate for recovery of language. Some studies suggest that recovery is particularly supported by homologues of damaged left-hemisphere structures. Evidence also suggests that under some circumstances, activity in both the left and right hemispheres can interfere with recovery of function. Further research will be needed to address these issues. However, daunting methodological problems must be managed to maximize the yield of future fMRI research in aphasia, especially in the area of language production. In this review, we cover six challenges for imaging language functions in aphasia with fMRI, with an emphasis on language production: (1) selection of a baseline task, (2) structure of language production trials, (3) mitigation of motion-related artifacts, (4) the use of stimulus onset versus response onset in fMRI analyses, (5) use of trials with correct responses and errors in analyses, and (6) reliability and stability of fMRI images across sessions. However, this list of methodological challenges is not exhaustive. Once methodology is advanced, knowledge from conceptually driven fMRI studies can be used to develop theoretically driven, mechanism-based treatments that will result in more effective therapy and to identify the best patient candidates for specific treatments. While the promise of fMRI in the study of aphasia is great, there is much work to be done before this technique will be a useful clinical tool.     

Transfer of memory retrieval cues in rats

Two experiments using rats were conducted to determine whether the retrieval of a memory could be brought under the control of new contextual cues that had not been present at the time of training. In Experiment 1, rats were trained in one context and then exposed to different contextual cues immediately, 60 min, or 120 min after training. When tested in the shifted context, rats that had been exposed shortly after training treated the shifted context as if it were the original context. The control that the previously neutral context had over retrieval disappeared with longer posttraining delays, suggesting the importance of an active memory representation during exposure. Experiment 2 replicated the basic finding and demonstrated that the transfer of retrieval cues was specific to the contextual cues present during exposure. These findings with rats are consistent with findings from infant research (see, e.g., Boller & Rovee-Collier, 1992) that have shown that a neutral context can come to serve as a retrieval cue for an episode experienced elsewhere.     

Patterns of critical consciousness and associations with sociocultural factors in black adolescents

Critical consciousness includes an understanding of structural oppression, agency to act and actions to redress oppression. Questions remain regarding how youth's experiences with oppression and their social identities might relate to their critical consciousness. In this study, we explored associations between critical consciousness (critical reflection, critical agency, and action) and sociocultural factors (racial identity, racial socialization, and racial stress) among Black adolescents (n = 604; M_age = 15.44, SD = 1.24). We used latent profile analysis and identified four profiles of critical consciousness: Precritical Bystander (62.7%), Liberated Actor (19.9%), Precritical Actor (10.8%), and Acritical Bystander (6.6%). These profiles were distinct in critical reflection, critical agency, and critical action. Next, we examined associations between critical consciousness profiles and sociocultural factors. We found that profile membership was differentially associated with some aspects of racial identity, racial socialization, and racial stress. These findings suggest that there are specific patterns of critical consciousness among Black youth which are differentially associated with racial identity, racial socialization that emphasizes cultural pride, and experiences of cultural racism. Please refer to the Supplementary Material section to find this article's Community and Social Impact Statement .     

A Person‐oriented Approach to Identifying Parenting Styles in Mothers of Early School‐age Children

A substantial body of work has been dedicated to understanding the behaviours that characterize mothers' interactions with their children. Most research on parenting has used a variable‐oriented approach, limiting analysis to one or a few parenting behaviours and failing to identify higher‐order interactions or patterns among variables. Thus, little is known about how different behaviours co‐occur in individual mothers to form styles of parenting. In this study, a person‐oriented approach was used to develop a typology of maternal parenting styles based on a broad range of observed and self‐reported parenting behaviours. The study sample consisted of 408 socio‐demographically diverse mother–child pairs. Cluster analysis revealed six parenting groups—(1) balanced parenting; (2) warm/involved parenting; (3) task‐focused parenting; (4) detached/inconsistent parenting; (5) intrusive parenting; and (6) self‐critical parenting—two of which (task‐focused and self‐critical parenting) have not been previously represented in the parenting literature. The maternal parenting typology developed through this study provides useful information on the profiles of parenting behaviour that are associated with the highest levels of demographic and psychological risk in mothers who exhibit these profiles. Copyright © 2014 John Wiley & Sons, Ltd.     

Prevalence of resurgence of destructive behavior when thinning reinforcement schedules during functional communication training

Functional communication training is a well‐established treatment for socially reinforced destructive behavior that typically includes differential reinforcement of the functional communication response (FCR) in combination with extinction of destructive behavior. However, when the schedule of reinforcement for the FCR is thinned, destructive behavior may resurge (e.g., Greer, Fisher, Saini, Owen, & Jones, 2016). Currently, data are unavailable on the prevalence and characteristics of resurgence during reinforcement schedule thinning. In this study, we evaluated the prevalence of resurgence during reinforcement schedule thinning on a per‐case and per‐schedule‐step basis and also evaluated the magnitude of resurgence in relation to the functions of destructive behavior. We observed resurgence in 19 of the 25 (76%) applications of reinforcement schedule thinning. In some cases, the magnitude of resurgence exceeded the mean levels of destructive behavior observed in baseline. We discuss these results relative to prior translational and applied research on resurgence.