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Now showing 1 - 10 of 499
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    Patient activation reduces effects of implicit bias on doctor-patient interactions
    (National Academy of Science, 2022) Gainsburg, Izzy; Derricks, Veronica; Shields, Cleveland; Fiscella, Kevin; Epstein, Ronald; Yu, Veronica; Griggs, Jennifer; Psychology, School of Science
    Disparities between Black and White Americans persist in medical treatment and health outcomes. One reason is that physicians sometimes hold implicit racial biases that favor White (over Black) patients. Thus, disrupting the effects of physicians' implicit bias is one route to promoting equitable health outcomes. In the present research, we tested a potential mechanism to short-circuit the effects of doctors' implicit bias: patient activation, i.e., having patients ask questions and advocate for themselves. Specifically, we trained Black and White standardized patients (SPs) to be "activated" or "typical" during appointments with unsuspecting oncologists and primary care physicians in which SPs claimed to have stage IV lung cancer. Supporting the idea that patient activation can promote equitable doctor-patient interactions, results showed that physicians' implicit racial bias (as measured by an implicit association test) predicted racially biased interpersonal treatment among typical SPs (but not among activated SPs) across SP ratings of interaction quality and ratings from independent coders who read the interaction transcripts. This research supports prior work showing that implicit attitudes can undermine interpersonal treatment in medical settings and provides a strategy for ensuring equitable doctor-patient interactions.
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    Intra-dorsolateral striatal AMPA receptor antagonism reduces binge-like alcohol drinking in male and female C57BL/6J mice
    (Elsevier, 2022) Bauer, Meredith R.; McVey, Megan M.; Germano, Damon M.; Zhang, Yanping; Boehm, Stephen L., II; Psychology, School of Science
    The dorsolateral striatum (DLS) is involved in addiction, reward, and alcohol related behaviors. The DLS primarily receives excitatory inputs which are gated by post-synaptic AMPA receptors. We antagonized AMPA receptors in the DLS to investigate how such modulation affects binge-like alcohol drinking in male and female C57BL/6J mice and whether an associated alcohol drinking history alters dorsomedial striatum (DMS) and DLS AMPA receptor expression. We also investigated the effect of intra-DLS NBQX on locomotor activity and saccharin drinking in mice. Mice were allowed free access to 20% alcohol for two hours each day for a total of seven days. Mice received an intra-DLS infusion of one of four concentrations of NBQX (saline, 0.15, 0.5, or 1.5 μg/side), an AMPA receptor antagonist, immediately prior to alcohol access on day 7. Two-hour binge alcohol intakes, locomotor activity, and blood alcohol concentrations were determined. Intra-DLS NBQX reduced binge-like alcohol drinking in a U-shaped manner in male and female mice. Intake predicted blood alcohol concentration, and locomotor activity was not affected. In a follow up experiment, we assessed whether the most effective NBQX concentration for reducing alcohol consumption also reduced saccharin drinking, finding intra-DLS NBQX did not alter saccharin drinking in male and female mice. These data suggest that AMPA receptors in the DLS play a role in the modulation of binge-like alcohol drinking. These findings further validate the importance of the DLS for alcohol related behaviors and alcohol use disorder.
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    A critical review of front-loading: A maladaptive drinking pattern driven by alcohol's rewarding effects
    (Wiley, 2022) Ardinger, Cherish E.; Lapish, Christopher C.; Czachowski, Cristine L.; Grahame, Nicholas J.; Psychology, School of Science
    Front‐loading is a drinking pattern in which alcohol intake is skewed toward the onset of reward access. This phenomenon has been reported across several different alcohol self‐administration protocols in a wide variety of species, including humans. The hypothesis of the current review is that front‐loading emerges in response to the rewarding effects of alcohol and can be used to measure the motivation to consume alcohol. Alternative or additional hypotheses that we consider and contrast with the main hypothesis are that: (1) front‐loading is directed at overcoming behavioral and/or metabolic tolerance and (2) front‐loading is driven by negative reinforcement. Evidence for each of these explanations is reviewed. We also consider how front‐loading has been evaluated statistically in previous research and make recommendations for defining this intake pattern in future studies. Because front‐loading may predict long‐term maladaptive alcohol drinking patterns leading to the development of alcohol use disorder (AUD), several future directions are proposed to elucidate the relationship between front‐loading and AUD.
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    Drinking history dependent functionality of the dorsolateral striatum on gating alcohol and quinine-adulterated alcohol front-loading and binge drinking
    (Elsevier, 2022) Bauer, Meredith R.; McVey, Megan M.; Boehm, Stephen L., II; Psychology, School of Science
    After an extended alcohol-drinking history, alcohol use can transition from controlled to compulsive, causing deleterious consequences. Alcohol use can be segregated into two distinct behaviors, alcohol seeking and alcohol taking. Expression of habitual and compulsive alcohol seeking depends on the dorsolateral striatum (DLS), a brain region thought to engage after extended alcohol access. However, it is unknown whether the DLS is also involved in compulsive-like alcohol taking. The purpose of this experiment was to identify whether the DLS gates compulsive-like binge alcohol drinking. To ask this question, we gave adult male and female C57BL/6J mice a binge-like alcohol-drinking history, which we have previously demonstrated to produce compulsive-like alcohol drinking (Bauer, McVey, & Boehm, 2021), or a water-drinking history. We then tested the involvement of the DLS on gating binge-like alcohol drinking and compulsive-like quinine-adulterated alcohol drinking via intra-DLS AMPA receptor antagonism. We hypothesized that pharmacological lesioning of the DLS would reduce compulsive-like quinine-adulterated alcohol (QuA) drinking, but not non-adulterated alcohol drinking, in male and female C57BL/6J mice. Three important findings were made. First, compulsive-like alcohol drinking is significantly blunted in cannulated mice. Because of this, we conclude that we were not able to adequately assess the effect of intra-DLS lesioning on compulsive-like alcohol drinking. Second, we found that the DLS gates binge-like alcohol drinking initially, which replicates findings in our previous work (Bauer, McVey, Germano, Zhang, & Boehm, 2022). However, following an extended alcohol history, the DLS no longer drives this behavior. Finally, alcohol and QuA front-loading is DLS-dependent in alcohol-history mice. Intra-DLS NBQX altered these drinking behaviors without altering ambulatory locomotor activity. These data demonstrate the necessity of the DLS in binge-like alcohol drinking before, but not following, an extended binge-like alcohol-drinking history and in alcohol front-loading in alcohol-history mice.
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    Individual factors predict substance use treatment course patterns among patients in community-based substance use disorder treatment
    (Public Library of Science, 2023-01-12) Argyriou, Evangelia; Bakoyannis, Giorgos; Wu, Wei; Rattermann, Mary Jo; Cyders, Melissa A.; Psychology, School of Science
    Background and objectives: Substance use disorders (SUDs) usually involve a complex natural trajectory of recovery alternating with symptom reoccurrence. This study examined treatment course patterns over time in a community SUD clinic. We examined depressive symptoms level, primary SUD assigned at each admission, and lifetime misuse of multiple substances as potential risk factors for premature treatment termination and subsequent treatment readmission. Methods: De-identified longitudinal data were extracted from charts of 542 patients from an SUD treatment center. Survival analysis methods were applied to predict two time-to-event outcomes: premature treatment termination and treatment readmission. Results: Primary opioid (vs alcohol) use disorder diagnosis at admission was associated with higher hazard of premature termination (HR = 1.91, p<0.001). The interaction between depressive symptoms level and substance use status (multiple vs single use) on treatment readmission was significant (p = 0.024), such that higher depressive symptoms level was predictive of readmission only among those with a history of single substance use (marginally significant effect). Lifetime use of multiple (vs single) substances (HR = 1.55, p = 0.002) and age (HR = 1.01, p = 0.019) predicted increased hazard of readmission. Conclusions: Findings did not support a universal role for depressive symptoms level in treatment course patterns. Primary SUD diagnosis, age, and history of substance misuse can be easily assessed and incorporated into treatment planning to support SUD patients and families. This study is the first to our knowledge that afforded a stringent test of these relationships and their interactions in a time-dependent, recurrent event, competing risks survival analysis examining both termination and readmission patterns utilizing a real-world clinic-based sample.
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    Systemic administration of racemic baclofen reduces both acquisition and maintenance of alcohol consumption in male and female mice
    (Elsevier, 2022) Bauer, Meredith R.; Hernández, Maribel; Kasten, Chelsea R.; Boehm, Stephen L., II; Psychology, School of Science
    Baclofen is a GABAB receptor agonist with proposed use as a treatment for alcohol use disorder (AUD). In preclinical studies, racemic baclofen decreases alcohol consumption in both mice and rats; however, there is a significant disparity in the efficacy of the drug across species. We previously demonstrated that baclofen is enantioselective, with the racemic enantiomer successfully reducing binge-like alcohol consumption during Drinking-in-the-Dark (DID) in C57BL/6J (B6) mice, as well as 24-h consumption during two-bottle choice (2BC) preference drinking in replicate 1 High Alcohol Preferring (HAP) mice. Here we extend these findings by investigating the effects of racemic baclofen on the acquisition and maintenance of alcohol consumption, locomotor activity, and saccharin drinking in two different mouse genotypes and drinking paradigms. Adult male and female B6 mice were allowed free access to 20% (v/v) alcohol for 2 h daily in a 14-day DID procedure. Adult male and female replicate 2 HAP (HAP2) mice were allowed 24-h access to 10% (v/v) alcohol versus tap water in a 2BC procedure for 14 days. Systemic injections of baclofen (0.0 or 3.0 mg/kg) were given 3 h into the dark cycle on days 1–5 in alcohol acquisition experiments and days 6–10 in alcohol maintenance experiments. We found that racemic baclofen significantly reduces acquisition of DID and 2BC alcohol drinking in male and female B6 and HAP2 mice, whereas it only significantly reduces the maintenance of DID alcohol intake in B6 mice. Racemic baclofen did not alter home cage locomotor activity but did alter saccharin intake, suggesting it may have nonspecific effects. The current data add to literature suggesting that smaller doses of racemic baclofen may be an effective treatment of AUD. Future work should focus on the longitudinal efficacy of racemic baclofen in high-drinking mouse genotypes to further investigate whether it is effective for those with a genetic predisposition to AUD.
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    Personalizing Interventions Using Real-World Interactions: Improving Symptoms and Social Functioning in Schizophrenia with Tailored Metacognitive Therapy
    (American Psychological Association, 2022) Minor, Kyle S.; Marggraf, Matthew P.; Davis, Beshaun J.; Mickens, Jessica L.; Abel, Danielle B.; Robbins, Megan L.; Buck, Kelly D.; Wiehe, Sarah E.; Lysaker, Paul H.; Psychology, School of Science
    Objective: When clients' lives are not reflected in therapy, they struggle to apply the skills learned in treatment to everyday situations. In this pilot study, we determined if using clients' real-world interactions in therapy could effectively target metacognitive capacity-yielding improved symptoms and social functioning-by tailoring treatment to focus on issues faced by clients in daily life. Method: Using a randomized controlled trial design, schizophrenia subjects with metacognitive deficits completed 24 sessions of: (a) Standard Metacognitive Reflection and Insight Therapy (MERIT); or (b) Tailored MERIT. Real-world interactions were captured via the Electronically Activated Recorder (EAR), a smartphone application that passively records audio in daily life. All subjects wore the EAR; however, real-world interactions were only used to personalize sessions in Tailored MERIT. Results: Feasibility and acceptability were shown; those in Tailored MERIT wore the EAR 84% of their waking hours and reported minimal burden. When compared to Standard MERIT, Tailored MERIT participants showed large pre-post reductions in negative metacognitive beliefs and disorganized symptoms. Small, but nonsignificant, improvements in social functioning were also observed. Conclusions: Compared to an evidence-based benchmark, we observed that real-world interactions can be used to tailor metacognitive therapy and improve outcomes in schizophrenia. Tailored MERIT has the potential to impact practice by personalizing treatment to account for individual variations in environment and lifestyle-aligning with the Precision Medicine Initiative-in a way that is not possible with current therapy. This is particularly salient in schizophrenia, where limited insight and cognitive deficits often make subjective reporting unreliable.
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    Recovery-oriented Acute Inpatient Mental Health Care: Operationalization and Measurement
    (American Psychological Association, 2021) McGuire, Alan B.; Kukla, Marina; Rollins, Angela L.; Garabrant, Jennifer; Henry, Nancy; Eliacin, Johanne; Myers, Laura J.; Flanagan, Mindy E.; Hunt, Marcia G.; Iwamasa, Gayle Y.; Bauer, Sarah M.; Carter, Jessica L.; Salyers, Michelle P.; Psychology, School of Science
    Objective: The current article describes efforts to develop and test a measure of recovery-oriented inpatient care. Method: The Recovery-oriented Acute INpatient (RAIN) scale was based on prior literature and current Veterans Health Administration (VHA) policy and resources and further revised based on data collection from 34 VHA acute inpatient units. Results: A final scale of 23, behaviorally anchored items demonstrated a four-factor structure including the following factors: inpatient treatment planning, outpatient treatment planning, group programming, and milieu. While several items require additional revision to address psychometric concerns, the scale demonstrated adequate model fit and was consistent with prior literature on recovery-oriented inpatient care. Conclusions and Implementations for Practice: The RAIN scale represents an important tool for future implementation and empirical study of recovery-oriented inpatient care.
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    Negative Urgency and Central Adiposity in a Community Sample: Moderated Mediation by Depressive Symptoms and Eating Behaviors
    (Elsevier, 2021) Shell, Aubrey L.; Oglesby, Larissa T.; Um, Miji; Stewart, Jesse C.; Cyders, Melissa A.; Psychology, School of Science
    Negative urgency – acting rashly in response to negative emotions – is a risk factor for central adiposity. We examine whether the relationship between negative urgency and waist-to-height ratio (WHtR) is mediated by eating behaviors (emotional eating, external eating, and cognitive restraint) and moderated by depressive symptom severity, factors that could be targeted to reduce risk associated with negative urgency. Using baseline data from the Nathan Kline Institute-Rockland Sample (N = 872; mean age = 42.4 years, SD = 15.3; 65% female; 27% non-White; mean body mass index = 27.9 kg/m2, SD = 5.9), we conducted a series of mediation and moderated mediation analyses controlling for age, sex, race, and socioeconomic status. Overall, there was a positive association between negative urgency and WHtR. Emotional eating (ab = 0.02, SE = 0.003, 95% CI [0.02, 0.03]) and uncontrolled eating (ab = 0.008, SE = 0.002, 95% CI [0.004, 0.01]) were partial mediators of the relationship between negative urgency and WHtR, while cognitive restraint was not. In a parallel mediation model, emotional eating remained significant, while uncontrolled eating did not. Depressive symptom severity moderated the indirect effect of negative urgency on WHtR through emotional eating (bint = −0.08, p < .001) but not the direct effect of negative urgency on WHtR. Our results indicate that emotional eating is a viable potential mechanism explaining the relationship between negative urgency and WHtR, and the indirect effect of negative urgency on WHtR through emotional eating becomes stronger as depressive symptom severity decreases.
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    Stuck Inside: How Social Functioning in Schizophrenia Changed During the COVID-19 Pandemic
    (Wolters Kluwer, 2022) Minor, Kyle S.; Myers, Evan J.; Abel, Danielle B.; Mickens, Jessica L.; Ayala, Alexandra; Warren, Kiara K.; Vohs, Jenifer L.; Psychology, School of Science
    Social distancing policies enacted during the COVID-19 pandemic altered our social interactions. People with schizophrenia, who already exhibit social deficits, may have been disproportionally impacted. In this pilot study, we a) compared prepandemic social functioning to functioning during the pandemic in people with schizophrenia ( n = 21) who had data at both time points; and b) examined if patterns of decline in schizophrenia differed from healthy controls ( n = 21) across a series of repeated-measures analyses of variance. We observed larger declines in social functioning in schizophrenia (η 2 = 0.07, medium effect size) during the pandemic compared with the control group. Between-group declines did not extend to other domains, suggesting that declines are specific to social functioning. Our findings signal that treatments focusing on reconnecting people with schizophrenia to their social networks should be prioritized. Future studies should continue tracking social functioning after the pandemic to illustrate patterns of recovery.