Task-related functional connectivity of the caudate mediates the association between trait mindfulness and implicit learning in older adults

Accumulating evidence shows a positive relationship between mindfulness and explicit cognitive functioning, i.e., that which occurs with conscious intent and awareness. However, recent evidence suggests that there may be a negative relationship between mindfulness and implicit types of learning, or those that occur without conscious awareness or intent. Here we examined the neural mechanisms underlying the recently reported negative relationship between dispositional mindfulness and implicit probabilistic sequence learning in both younger and older adults. We tested the hypothesis that the relationship is mediated by communication, or functional connectivity, of brain regions once traditionally considered to be central to dissociable learning systems: the caudate, medial temporal lobe (MTL), and prefrontal cortex (PFC). We first replicated the negative relationship between mindfulness and implicit learning in a sample of healthy older adults (60–90 years old) who completed three event-related runs of an implicit sequence learning task. Then, using a seed-based connectivity approach, we identified task-related connectivity associated with individual differences in both learning and mindfulness. The main finding was that caudate-MTL connectivity (bilaterally) was positively correlated with learning and negatively correlated with mindfulness. Further, the strength of task-related connectivity between these regions mediated the negative relationship between mindfulness and learning. This pattern of results was limited to the older adults. Thus, at least in healthy older adults, the functional communication between two interactive learning-relevant systems can account for the relationship between mindfulness and implicit probabilistic sequence learning.     

Discounting of monetary and directly consumable rewards

We compared temporal and probability discounting of a nonconsumable reward (money) and three directly consumable rewards (candy, soda, and beer). When rewards were delayed, monetary rewards were discounted less steeply than directly consumable rewards, all three of which were discounted at equivalent rates. When rewards were probabilistic, however, there was no difference between the discounting of monetary and directly consumable rewards. It has been reported that substance abusers discount delayed drug rewards more steeply than delayed money, but this difference may reflect special characteristics of drugs or drug abusers, or it may reflect a general property of consumable rewards. The present findings suggest that abused substances (like beer) share the properties of other directly consumable rewards, whereas delayed monetary rewards are special because they are fungible, generalized (conditioned) reinforcers.     

Comparison of two TAGteach error-correction procedures to teach beginner yoga poses to adults

Teaching with acoustical guidance involves auditory feedback (e.g., a click sound when a desired behavior occurs) as part of a multicomponent intervention known as TAGteach. TAGteach has been found to improve performance in sport, dance, surgical technique, and walking. We compared the efficacy and efficiency of the standard TAGteach error-correction procedure and a modified TAGteach error-correction procedure to teach 4 novice adult yoga practitioners beginner yoga poses. Both error-correction procedures were effective for all participants; however, the relative efficiency of these error-correction procedures was unclear. Results are discussed in terms of limitations and considerations for future research.     

The Use of Religion Among HIV-Infected African American Women

A study of the associations among physical and mental health and differential patterns of religiosity among African American women was conducted with a sample of 253 participants: 104 HIV-infected, 46 chronically ill (not HIV-infected), and 103 healthy subjects. Participants' uses of private (i.e., prayer) and public (i.e., church attendance) forms of religiosity were assessed using data from semi-structured interviews. The relationship between religiosity and mental health exhibited an incongruous pattern, differing across health condition and forms of religious behavior. The practice of public religiosity was found to be inversely associated with engagement in high-risk health behaviors among HIV-infected and healthy women but not among the chronically ill. Although private religiosity was unrelated to participants' perceptions of physical health, public religiosity was positively associated with physical health among HIV-infected women and inversely associated with their CD4 count. Finally, having a sense of control over one's health was positively related to religiosity. Results from this study support the important role religion plays for persons faced with chronic terminal diseases, as in the case of HIV/AIDS.     

Translational Research on Caregiver Reading and Playing Behaviors: Evidence from an In Vivo Community-based Intervention throughout the COVID-19 Pandemic

Journal of Child and Family Studies - This study provides a rigorous assessment of a community-based early child development (ECD) intervention to understand the drivers of caregivers’...     

“Big Momma Had Sugar,Imma Have It Too” Medical Fatalism and the Language of Faith Among African–American Women in Memphis

This essay offers a theological exploration of the relationship between medical fatalism and religious belonging among African–American women in Memphis. Drawing on the work of black and womanist theologians and on conversations with participants in a diabetes intervention program administered by a faith-based community health provider, I argue that how we narrate the meanings of our bodies is irreducibly religious. The language we use to interpret and communicate the meaning of our bodily existence emerges from a set of assumptions, often unarticulated, about what is of ultimate value to us. The essay focuses on three interlocking features that link faith with fatalism or hope: (1) The idea that if “I don’t claim that” disease cannot enter my body; (2) the role of faith-based clinics in re-establishing trust with marginalized communities; and (3) how nuanced attention to the social location of health seekers can re-frame our understanding of patient compliance. Disrupting fatalism can only be done from within a health seeker’s own narrative, and therefore, healthcare providers who learn these narratives and respect their holiness will develop more effective interventions.     

Neighborhood consistency and memory for number facts

Verguts and Fias (Memory & Cognition 33:1-16, 2005a) proposed a new model of memory for simple multiplication facts ( $ 2 \times 3 = 6 $ ; $ 8 \times 7 = 56 $ ) in which learning and performance is governed by the consistency of a problem’s correct product with neighboring products in the times table. In the present study, to directly investigate effects of neighborhood consistency, participants memorized a set of 16 novel “pound” arithmetic equations. The pound arithmetic table included eight tie equations with repeated operands (e.g., 4 # 4 = 29) and eight nontie equations (e.g., 5 # 4 = 39). In the consistent problem set, tie and nontie answers in adjacent columns and rows shared a common decade or unit value. In the inconsistent problem set, neighboring tie and nontie problems did not share a common decade or unit. Across 14 study–test blocks, memorization of the pound arithmetic table presented a robust effect of neighborhood consistency, with the rate of learning nearly doubling that of the inconsistent condition. An analysis of error types showed that consistency fostered the development of a categorical structure based on problem operands and that tie problems were encoded as a distinct subcategory of problems. There was also a substantial learning advantage for tie problems relative to nonties both with consistent and inconsistent neighbors. The results indicate that neighborhood consistency can have a major impact on memory for number facts.