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Haines N, Sullivan-Toole H, Olino T. From Classical Methods to Generative Models: Tackling the Unreliability of Neuroscientific Measures in Mental Health Research. Biological Psychiatry: Cognitive Neuroscience and Neuroimaging 2023; 8:822-831. [PMID: 36997406 PMCID: PMC10333448 DOI: 10.1016/j.bpsc.2023.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 12/28/2022] [Accepted: 01/03/2023] [Indexed: 01/13/2023]
Abstract
Advances in computational statistics and corresponding shifts in funding initiatives over the past few decades have led to a proliferation of neuroscientific measures being developed in the context of mental health research. Although such measures have undoubtedly deepened our understanding of neural mechanisms underlying cognitive, affective, and behavioral processes associated with various mental health conditions, the clinical utility of such measures remains underwhelming. Recent commentaries point toward the poor reliability of neuroscientific measures to partially explain this lack of clinical translation. Here, we provide a concise theoretical overview of how unreliability impedes clinical translation of neuroscientific measures; discuss how various modeling principles, including those from hierarchical and structural equation modeling frameworks, can help to improve reliability; and demonstrate how to combine principles of hierarchical and structural modeling within the generative modeling framework to achieve more reliable, generalizable measures of brain-behavior relationships for use in mental health research.
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Affiliation(s)
- Nathaniel Haines
- Department of Data Science, Bayesian Beginnings LLC, Columbus, Ohio.
| | | | - Thomas Olino
- Department of Psychology, Temple University, Philadelphia, Pennsylvania
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2
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Haines N, Kvam PD, Turner BM. Explaining the description-experience gap in risky decision-making: learning and memory retention during experience as causal mechanisms. Cogn Affect Behav Neurosci 2023:10.3758/s13415-023-01099-z. [PMID: 37291409 DOI: 10.3758/s13415-023-01099-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/28/2023] [Indexed: 06/10/2023]
Abstract
When making decisions based on probabilistic outcomes, people guide their behavior using knowledge gathered through both indirect descriptions and direct experience. Paradoxically, how people obtain information significantly impacts apparent preferences. A ubiquitous example is the description-experience gap: individuals seemingly overweight low probability events when probabilities are described yet underweight them when probabilities must be experienced firsthand. A leading explanation for this fundamental gap in decision-making is that probabilities are weighted differently when learned through description relative to experience, yet a formal theoretical account of the mechanism responsible for such weighting differences remains elusive. We demonstrate how various learning and memory retention models incorporating neuroscientifically motivated learning mechanisms can explain why probability weighting and valuation parameters often are found to vary across description and experience. In a simulation study, we show how learning through experience can lead to systematically biased estimates of probability weighting when using a traditional cumulative prospect theory model. We then use hierarchical Bayesian modeling and Bayesian model comparison to show how various learning and memory retention models capture participants' behavior over and above changes in outcome valuation and probability weighting, accounting for description and experience-based decisions in a within-subject experiment. We conclude with a discussion of how substantive models of psychological processes can lead to insights that heuristic statistical models fail to capture.
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Affiliation(s)
- Nathaniel Haines
- The Ohio State University, Columbus, OH, USA.
- Bayesian Beginnings LLC, Columbus, USA.
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Trofimova I, Bajaj S, Bashkatov SA, Blair J, Brandt A, Chan RCK, Clemens B, Corr PJ, Cyniak-Cieciura M, Demidova L, Filippi CA, Garipova M, Habel U, Haines N, Heym N, Hunter K, Jones NA, Kanen J, Kirenskaya A, Kumari V, Lenzoni S, Lui SSY, Mathur A, McNaughton N, Mize KD, Mueller E, Netter P, Paul K, Plieger T, Premkumar P, Raine A, Reuter M, Robbins TW, Samylkin D, Storozheva Z, Sulis W, Sumich A, Tkachenko A, Valadez EA, Wacker J, Wagels L, Wang LL, Zawadzki B, Pickering AD. What is next for the neurobiology of temperament, personality and psychopathology? Curr Opin Behav Sci 2022. [DOI: 10.1016/j.cobeha.2022.101143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Blair RJR, Mathur A, Haines N, Bajaj S. Future directions for cognitive neuroscience in psychiatry: recommendations for biomarker design based on recent test re-test reliability work. Curr Opin Behav Sci 2022. [DOI: 10.1016/j.cobeha.2022.101102] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Ahn WY, Gu H, Shen Y, Haines N, Hahn HA, Teater JE, Myung JI, Pitt MA. Rapid, precise, and reliable measurement of delay discounting using a Bayesian learning algorithm. Sci Rep 2020; 10:12091. [PMID: 32694654 PMCID: PMC7374100 DOI: 10.1038/s41598-020-68587-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 06/25/2020] [Indexed: 11/24/2022] Open
Abstract
Machine learning has the potential to facilitate the development of computational methods that improve the measurement of cognitive and mental functioning. In three populations (college students, patients with a substance use disorder, and Amazon Mechanical Turk workers), we evaluated one such method, Bayesian adaptive design optimization (ADO), in the area of delay discounting by comparing its test-retest reliability, precision, and efficiency with that of a conventional staircase method. In all three populations tested, the results showed that ADO led to 0.95 or higher test-retest reliability of the discounting rate within 10-20 trials (under 1-2 min of testing), captured approximately 10% more variance in test-retest reliability, was 3-5 times more precise, and was 3-8 times more efficient than the staircase method. The ADO methodology provides efficient and precise protocols for measuring individual differences in delay discounting.
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Affiliation(s)
- Woo-Young Ahn
- Department of Psychology, Seoul National University, Seoul, 08826, Korea.
- Department of Psychology, The Ohio State University, Columbus, OH, USA.
| | - Hairong Gu
- Department of Psychology, The Ohio State University, Columbus, OH, USA
| | - Yitong Shen
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Nathaniel Haines
- Department of Psychology, The Ohio State University, Columbus, OH, USA
| | - Hunter A Hahn
- Department of Psychology, The Ohio State University, Columbus, OH, USA
| | - Julie E Teater
- Department of Psychiatry and Behavioral Health, The Ohio State University, Columbus, OH, USA
| | - Jay I Myung
- Department of Psychology, The Ohio State University, Columbus, OH, USA
| | - Mark A Pitt
- Department of Psychology, The Ohio State University, Columbus, OH, USA
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Haines N, Beauchaine TP. Moving beyond Ordinary Factor Analysis in Studies of Personality and Personality Disorder: A Computational Modeling Perspective. Psychopathology 2020; 53:157-167. [PMID: 32663821 PMCID: PMC7529707 DOI: 10.1159/000508539] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 05/06/2020] [Indexed: 01/03/2023]
Abstract
Almost all forms of psychopathology, including personality disorders, are arrived at through complex interactions among neurobiological vulnerabilities and environmental risk factors across development. Yet despite increasing recognition of etiological complexity, psychopathology research is still dominated by searches for large main effects causes. This derives in part from reliance on traditional inferential methods, including ordinary factor analysis, regression, ANCOVA, and other techniques that use statistical partialing to isolate unique effects. In principle, some of these methods can accommodate etiological complexity, yet as typically applied they are insensitive to interactive functional dependencies (modulating effects) among etiological influences. Here, we use our developmental model of antisocial and borderline traits to illustrate challenges faced when modeling complex etiological mechanisms of psychopathology. We then consider how computational models, which are rarely used in the personality disorders literature, remedy some of these challenges when combined with hierarchical Bayesian analysis.
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Affiliation(s)
- Nathaniel Haines
- Department of Psychology, The Ohio State University, Columbus, Ohio, USA
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Hahn H, Kalnitsky S, Haines N, Thamotharan S, Beauchaine TP, Ahn WY. Correction to: Delay Discounting of Protected Sex: Relationship Type and Sexual Orientation Influence Sexual Risk Behavior. Arch Sex Behav 2019; 48:2103. [PMID: 31482421 DOI: 10.1007/s10508-019-01541-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In the original publication of the article, the corresponding author was processed incorrectly. The corresponding author for this article should be: Woo-Young Ahn.
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Affiliation(s)
- Hunter Hahn
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA
| | - Samuel Kalnitsky
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA
| | - Nathaniel Haines
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA
| | - Sneha Thamotharan
- Department of Psychiatry and Human Behavior, The Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Child and Adolescent Psychiatry, Rhode Island Hospital, Providence, RI, USA
| | | | - Woo-Young Ahn
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA.
- Department of Psychology, Seoul National University, Seoul, 08826, Korea.
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Hahn H, Kalnitsky S, Haines N, Thamotharan S, Beauchaine TP, Ahn WY. Delay Discounting of Protected Sex: Relationship Type and Sexual Orientation Influence Sexual Risk Behavior. Arch Sex Behav 2019; 48:2089-2102. [PMID: 31414329 DOI: 10.1007/s10508-019-1450-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 04/01/2019] [Accepted: 04/02/2019] [Indexed: 05/06/2023]
Abstract
Sexual discounting, which describes delay discounting of later protected sex vs. immediate unprotected sex (e.g., sex now without a condom vs. waiting an hour to have sex with a condom), is consistently linked to sexual risk behavior. Estimates suggest that over two-thirds of HIV transmissions occur between individuals in committed relationships, but current sexual discounting tasks examine sexual discounting only with hypothetical strangers, leaving a gap in our understanding of sexual discounting with committed sexual partners. We used the Sexual Discounting Task (SDT) to compare discounting rates between men who have sex with men (MSM; n = 99) and heterosexual men (n = 144) and tested a new SDT condition evaluating sexual discounting with main partners. MSM in committed relationships discounted protected sex with their main partner at higher rates than heterosexual men, and discounting rates correlated with self-report measures of condom use, impulsivity/sensation seeking, and substance use. These findings suggest that sexual discounting is a critical factor potentially related to increased HIV transmission between MSM in committed relationships and may be an important target for intervention and prevention.
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Affiliation(s)
- Hunter Hahn
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA.
| | - Samuel Kalnitsky
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA
| | - Nathaniel Haines
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA
| | - Sneha Thamotharan
- Department of Psychiatry and Human Behavior, The Warren Alpert Medical School of Brown University, Providence, RI, USA
- Department of Child and Adolescent Psychiatry, Rhode Island Hospital, Providence, RI, USA
| | | | - Woo-Young Ahn
- Department of Psychology, The Ohio State University, Columbus, OH, 43210, USA
- Department of Psychology, Seoul National University, Seoul, Korea
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Haines N, Bell Z, Crowell S, Hahn H, Kamara D, McDonough-Caplan H, Shader T, Beauchaine TP. Using automated computer vision and machine learning to code facial expressions of affect and arousal: Implications for emotion dysregulation research. Dev Psychopathol 2019; 31:871-886. [PMID: 30919792 PMCID: PMC7319037 DOI: 10.1017/s0954579419000312] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
As early as infancy, caregivers' facial expressions shape children's behaviors, help them regulate their emotions, and encourage or dissuade their interpersonal agency. In childhood and adolescence, proficiencies in producing and decoding facial expressions promote social competence, whereas deficiencies characterize several forms of psychopathology. To date, however, studying facial expressions has been hampered by the labor-intensive, time-consuming nature of human coding. We describe a partial solution: automated facial expression coding (AFEC), which combines computer vision and machine learning to code facial expressions in real time. Although AFEC cannot capture the full complexity of human emotion, it codes positive affect, negative affect, and arousal-core Research Domain Criteria constructs-as accurately as humans, and it characterizes emotion dysregulation with greater specificity than other objective measures such as autonomic responding. We provide an example in which we use AFEC to evaluate emotion dynamics in mother-daughter dyads engaged in conflict. Among other findings, AFEC (a) shows convergent validity with a validated human coding scheme, (b) distinguishes among risk groups, and (c) detects developmental increases in positive dyadic affect correspondence as teen daughters age. Although more research is needed to realize the full potential of AFEC, findings demonstrate its current utility in research on emotion dysregulation.
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Affiliation(s)
- Nathaniel Haines
- Department of Psychology, Ohio State University, Columbus, OH, USA
| | - Ziv Bell
- Department of Psychology, Ohio State University, Columbus, OH, USA
| | - Sheila Crowell
- Department of Psychology, University of Utah, Salt Lake City, UT, USA
- Department of Psychiatry, University of Utah, Salt Lake City, UT, USA
| | - Hunter Hahn
- Department of Psychology, Ohio State University, Columbus, OH, USA
| | - Dana Kamara
- Department of Psychology, Ohio State University, Columbus, OH, USA
| | | | - Tiffany Shader
- Department of Psychology, Ohio State University, Columbus, OH, USA
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Haines N, Southward MW, Cheavens JS, Beauchaine T, Ahn WY. Using computer-vision and machine learning to automate facial coding of positive and negative affect intensity. PLoS One 2019; 14:e0211735. [PMID: 30721270 PMCID: PMC6363175 DOI: 10.1371/journal.pone.0211735] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 01/18/2019] [Indexed: 11/26/2022] Open
Abstract
Facial expressions are fundamental to interpersonal communication, including social interaction, and allow people of different ages, cultures, and languages to quickly and reliably convey emotional information. Historically, facial expression research has followed from discrete emotion theories, which posit a limited number of distinct affective states that are represented with specific patterns of facial action. Much less work has focused on dimensional features of emotion, particularly positive and negative affect intensity. This is likely, in part, because achieving inter-rater reliability for facial action and affect intensity ratings is painstaking and labor-intensive. We use computer-vision and machine learning (CVML) to identify patterns of facial actions in 4,648 video recordings of 125 human participants, which show strong correspondences to positive and negative affect intensity ratings obtained from highly trained coders. Our results show that CVML can both (1) determine the importance of different facial actions that human coders use to derive positive and negative affective ratings when combined with interpretable machine learning methods, and (2) efficiently automate positive and negative affect intensity coding on large facial expression databases. Further, we show that CVML can be applied to individual human judges to infer which facial actions they use to generate perceptual emotion ratings from facial expressions.
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Affiliation(s)
- Nathaniel Haines
- Department of Psychology, The Ohio State University, Columbus, Ohio, United States of America
| | - Matthew W. Southward
- Department of Psychology, The Ohio State University, Columbus, Ohio, United States of America
| | - Jennifer S. Cheavens
- Department of Psychology, The Ohio State University, Columbus, Ohio, United States of America
| | - Theodore Beauchaine
- Department of Psychology, The Ohio State University, Columbus, Ohio, United States of America
| | - Woo-Young Ahn
- Department of Psychology, Seoul National University, Seoul, Korea
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Haines N, Vassileva J, Ahn WY. The Outcome-Representation Learning Model: A Novel Reinforcement Learning Model of the Iowa Gambling Task. Cogn Sci 2018; 42:2534-2561. [PMID: 30289167 PMCID: PMC6286201 DOI: 10.1111/cogs.12688] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 05/23/2018] [Accepted: 08/29/2018] [Indexed: 11/27/2022]
Abstract
The Iowa Gambling Task (IGT) is widely used to study decision-making within healthy and psychiatric populations. However, the complexity of the IGT makes it difficult to attribute variation in performance to specific cognitive processes. Several cognitive models have been proposed for the IGT in an effort to address this problem, but currently no single model shows optimal performance for both short- and long-term prediction accuracy and parameter recovery. Here, we propose the Outcome-Representation Learning (ORL) model, a novel model that provides the best compromise between competing models. We test the performance of the ORL model on 393 subjects' data collected across multiple research sites, and we show that the ORL reveals distinct patterns of decision-making in substance-using populations. Our work highlights the importance of using multiple model comparison metrics to make valid inference with cognitive models and sheds light on learning mechanisms that play a role in underweighting of rare events.
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Affiliation(s)
- Nathaniel Haines
- Department of Psychology, The Ohio State University, Columbus, OH
| | - Jasmin Vassileva
- Department of Psychiatry, Virginia Commonwealth University, Richmond, VA
- Institute for Drug and Alcohol Studies, Virginia Commonwealth University, Richmond, VA
| | - Woo-Young Ahn
- Department of Psychology, The Ohio State University, Columbus, OH
- Department of Psychology, Seoul National University, Seoul, Korea
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Haines N, Kempton LB, Seymour RB, Bosse MJ, Churchill C, Hand K, Hsu JR, Keil D, Kellam J, Rozario N, Sims S, Karunakar MA. The effect of a single early high-dose vitamin D supplement on fracture union in patients with hypovitaminosis D: a prospective randomised trial. Bone Joint J 2017; 99-B:1520-1525. [PMID: 29092993 DOI: 10.1302/0301-620x.99b11.bjj-2017-0271.r1] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Accepted: 06/06/2017] [Indexed: 11/05/2022]
Abstract
AIMS To evaluate the effect of a single early high-dose vitamin D supplement on fracture union in patients with hypovitaminosis D and a long bone fracture. PATIENTS AND METHODS Between July 2011 and August 2013, 113 adults with a long bone fracture were enrolled in a prospective randomised double-blind placebo-controlled trial. Their serum vitamin D levels were measured and a total of 100 patients were found to be vitamin D deficient (< 20 ng/ml) or insufficient (< 30 ng/mL). These were then randomised to receive a single dose of vitamin D3 orally (100 000 IU) within two weeks of injury (treatment group, n = 50) or a placebo (control group, n = 50). We recorded patient demographics, fracture location and treatment, vitamin D level, time to fracture union and complications, including vitamin D toxicity. Outcomes included union, nonunion or complication requiring an early, unplanned secondary procedure. Patients without an outcome at 15 months and no scheduled follow-up were considered lost to follow-up. The t-test and cross tabulations verified the adequacy of randomisation. An intention-to-treat analysis was carried out. RESULTS In all, 100 (89%) patients had hypovitaminosis D. Both treatment and control groups had similar demographics and injury characteristics. The initial median vitamin D levels were 16 ng/mL (interquartile range 5 to 28) in both groups (p = 0.885). A total of 14 patients were lost to follow-up (seven from each group), two had fixation failure (one in each group) and one control group patient developed an infection. Overall, the nonunion rate was 4% (two per group). No patient showed signs of clinical toxicity from their supplement. CONCLUSIONS Despite finding a high level of hypovitaminosis D, the rate of union was high and independent of supplementation with vitamin D3. Cite this article: Bone Joint J 2017;99-B:1520-5.
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Affiliation(s)
- N Haines
- Carolinas Medical Center, 1000 Blythe Boulevard Charlotte, North Carolina, USA
| | - L B Kempton
- Indiana University School of Medicine, 1801 N. Senate Ave Indianapolis, Indiana, USA
| | - R B Seymour
- Carolinas Medical Center, 1000 Blythe Boulevard Charlotte, North Carolina, USA
| | - M J Bosse
- Carolinas Medical Center, 1000 Blythe Boulevard Charlotte, North Carolina, USA
| | - C Churchill
- Carolinas Medical Center, 1000 Blythe Boulevard Charlotte, North Carolina, USA
| | - K Hand
- Memorial Hospital at Gulfport, 1340 Broad Ave #440 Gulfport, Mississippi, USA
| | - J R Hsu
- Carolinas Medical Center, 1000 Blythe Boulevard Charlotte, North Carolina, USA
| | - D Keil
- University of North Carolina School of Medicine, 21 S Columbia St. Chapel Hill, North Carolina, USA
| | - J Kellam
- The University of Texas Health Science Center at Houston (UT Health), 6431 Fannin Street, Houston, Texas, USA
| | - N Rozario
- Carolinas Medical Center, 100 Blythe Boulevard Charlotte, North Carolina, USA
| | - S Sims
- Carolinas Medical Center, 1000 Blythe Boulevard Charlotte, North Carolina, USA
| | - M A Karunakar
- Carolinas Medical Center, 1000 Blythe Boulevard Charlotte, North Carolina, USA
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Rogers AH, Seager I, Haines N, Hahn H, Aldao A, Ahn WY. The Indirect Effect of Emotion Regulation on Minority Stress and Problematic Substance Use in Lesbian, Gay, and Bisexual Individuals. Front Psychol 2017; 8:1881. [PMID: 29118731 PMCID: PMC5660987 DOI: 10.3389/fpsyg.2017.01881] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 10/11/2017] [Indexed: 11/13/2022] Open
Abstract
Lesbian, gay, and bisexual (LGB) individuals report higher levels of problematic alcohol and substance use than their heterosexual peers. This disparity is linked to the experience of LGB-specific stressors, termed minority stress. Additionally, bisexual individuals show increased rates of psychopathology, including problematic alcohol and substance use, above and beyond lesbian and gay individuals. However, not everyone experiencing minority stress reports increased rates of alcohol and substance misuse. Emotion regulation (ER), which plays a critical role in psychopathology in general, is theorized to modulate the link between minority stress and psychopathology. However, it remains largely unknown whether ER plays a role in linking instances of minority stress with substance and alcohol use outcomes. To address the gap, the current study assessed 305 LGB individuals' instances of minority stress, ER, and substance and alcohol use outcomes. We assessed the role of ER in problematic alcohol and substance use among LGB individuals using moderated mediation, where sexual minority status was entered as the moderator, and ER difficulties was entered as the mediator. The results indicated significant indirect effects of minority stress, through ER difficulties, on both problematic alcohol and substance use. However, there was no significant interaction with sexual orientation status, suggesting that ER may be important for all LGB individuals in predicting problematic alcohol and substance use. These results highlight the important role that ER plays between instances of minority stress and substance and alcohol use in LGB individuals, suggesting that ER skills may serve as a novel target for intervention.
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Affiliation(s)
- Andrew H Rogers
- Department of Psychology, Ohio State University, Columbus, OH, United States.,Department of Psychology, University of Houston, Houston, TX, United States
| | - Ilana Seager
- Department of Psychology, Ohio State University, Columbus, OH, United States
| | - Nathaniel Haines
- Department of Psychology, Ohio State University, Columbus, OH, United States
| | - Hunter Hahn
- Department of Psychology, Ohio State University, Columbus, OH, United States
| | - Amelia Aldao
- Department of Psychology, Ohio State University, Columbus, OH, United States
| | - Woo-Young Ahn
- Department of Psychology, Ohio State University, Columbus, OH, United States.,Department of Psychology, Seoul National University, Seoul, South Korea
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Ahn WY, Haines N, Zhang L. Revealing Neurocomputational Mechanisms of Reinforcement Learning and Decision-Making With the hBayesDM Package. Comput Psychiatr 2017; 1:24-57. [PMID: 29601060 PMCID: PMC5869013 DOI: 10.1162/cpsy_a_00002] [Citation(s) in RCA: 161] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 03/06/2017] [Indexed: 12/22/2022]
Abstract
Reinforcement learning and decision-making (RLDM) provide a quantitative framework and computational theories with which we can disentangle psychiatric conditions into the basic dimensions of neurocognitive functioning. RLDM offer a novel approach to assessing and potentially diagnosing psychiatric patients, and there is growing enthusiasm for both RLDM and computational psychiatry among clinical researchers. Such a framework can also provide insights into the brain substrates of particular RLDM processes, as exemplified by model-based analysis of data from functional magnetic resonance imaging (fMRI) or electroencephalography (EEG). However, researchers often find the approach too technical and have difficulty adopting it for their research. Thus, a critical need remains to develop a user-friendly tool for the wide dissemination of computational psychiatric methods. We introduce an R package called hBayesDM (hierarchical Bayesian modeling of Decision-Making tasks), which offers computational modeling of an array of RLDM tasks and social exchange games. The hBayesDM package offers state-of-the-art hierarchical Bayesian modeling, in which both individual and group parameters (i.e., posterior distributions) are estimated simultaneously in a mutually constraining fashion. At the same time, the package is extremely user-friendly: users can perform computational modeling, output visualization, and Bayesian model comparisons, each with a single line of coding. Users can also extract the trial-by-trial latent variables (e.g., prediction errors) required for model-based fMRI/EEG. With the hBayesDM package, we anticipate that anyone with minimal knowledge of programming can take advantage of cutting-edge computational-modeling approaches to investigate the underlying processes of and interactions between multiple decision-making (e.g., goal-directed, habitual, and Pavlovian) systems. In this way, we expect that the hBayesDM package will contribute to the dissemination of advanced modeling approaches and enable a wide range of researchers to easily perform computational psychiatric research within different populations.
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Affiliation(s)
- Woo-Young Ahn
- Department of Psychology, The Ohio State University, Columbus, OH
| | - Nathaniel Haines
- Department of Psychology, The Ohio State University, Columbus, OH
| | - Lei Zhang
- Institute for Systems Neuroscience, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Ündar A, Palanzo D, Qiu F, Alkan-Bozkaya T, Akcevin A, Talor J, Baer L, Woitas K, Wise R, McCoach R, Guan Y, Haines N, Wang S, Clark JB, Myers JL. Benefits of pulsatile flow in pediatric cardiopulmonary bypass procedures: from conception to conduction. Perfusion 2011; 26 Suppl 1:35-9. [DOI: 10.1177/0267659111404468] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
This review on the benefits of pulsatile flow includes not only experimental and clinical data, but also attempts to further illuminate the major factors as to why this debate has continued during the past 55 years. Every single component of the cardiopulmonary bypass (CPB) circuitry is equally important for generating adequate quality of pulsatility, not only the pump. Therefore, translational research is a necessity to select the best components for the circuit. Generation of pulsatile flow depends on an energy gradient; precise quantification in terms of hemodynamic energy levels is, therefore, a necessity, not an option. Comparisons between perfusion modes should be done after these basic steps have been taken. We have also included experimental and clinical data for direct comparisons between the perfusion modes. In addition, we included several suggestions for future clinical trials for other interested investigators.
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Affiliation(s)
| | | | - F Qiu
- Penn State Hershey Pediatric Cardiovascular Research Center, Departments of Pediatrics, Surgery, Bioengineering, Public Health Sciences, and Comparative Medicine, Penn State Hershey College of Medicine, Penn State Hershey Children’s Hospital, Hershey, Pennsylvania, USA
| | - T Alkan-Bozkaya
- Dept. of Cardiovascular Surgery, American Hospital, Istanbul, Turkey
| | - A Akcevin
- Dept. of Cardiovascular Surgery, American Hospital, Istanbul, Turkey
| | - J Talor
- Penn State Hershey Pediatric Cardiovascular Research Center, Departments of Pediatrics, Surgery, Bioengineering, Public Health Sciences, and Comparative Medicine, Penn State Hershey College of Medicine, Penn State Hershey Children’s Hospital, Hershey, Pennsylvania, USA
| | - L Baer
- Penn State Hershey Pediatric Cardiovascular Research Center, Departments of Pediatrics, Surgery, Bioengineering, Public Health Sciences, and Comparative Medicine, Penn State Hershey College of Medicine, Penn State Hershey Children’s Hospital, Hershey, Pennsylvania, USA
| | - K Woitas
- Penn State Hershey Pediatric Cardiovascular Research Center, Departments of Pediatrics, Surgery, Bioengineering, Public Health Sciences, and Comparative Medicine, Penn State Hershey College of Medicine, Penn State Hershey Children’s Hospital, Hershey, Pennsylvania, USA
| | - R Wise
- Penn State Hershey Pediatric Cardiovascular Research Center, Departments of Pediatrics, Surgery, Bioengineering, Public Health Sciences, and Comparative Medicine, Penn State Hershey College of Medicine, Penn State Hershey Children’s Hospital, Hershey, Pennsylvania, USA
| | - R McCoach
- Penn State Hershey Pediatric Cardiovascular Research Center, Departments of Pediatrics, Surgery, Bioengineering, Public Health Sciences, and Comparative Medicine, Penn State Hershey College of Medicine, Penn State Hershey Children’s Hospital, Hershey, Pennsylvania, USA
| | - Y Guan
- Dept. of Cardiopulmonary Bypass, The Fuwai Hospital, Beijing, China
| | - N Haines
- Penn State Hershey Pediatric Cardiovascular Research Center, Departments of Pediatrics, Surgery, Bioengineering, Public Health Sciences, and Comparative Medicine, Penn State Hershey College of Medicine, Penn State Hershey Children’s Hospital, Hershey, Pennsylvania, USA
| | - S Wang
- Dept. of Cardiopulmonary Bypass, The Fuwai Hospital, Beijing, China
| | - J B Clark
- Penn State Hershey Pediatric Cardiovascular Research Center, Departments of Pediatrics, Surgery, Bioengineering, Public Health Sciences, and Comparative Medicine, Penn State Hershey College of Medicine, Penn State Hershey Children’s Hospital, Hershey, Pennsylvania, USA
| | - J L Myers
- Penn State Hershey Pediatric Cardiovascular Research Center, Departments of Pediatrics, Surgery, Bioengineering, Public Health Sciences, and Comparative Medicine, Penn State Hershey College of Medicine, Penn State Hershey Children’s Hospital, Hershey, Pennsylvania, USA
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Abstract
The Hedgehog signaling pathway has been recognized as essential for patterning processes in development of metazoan animal species. The signaling pathway is, however, not entirely understood. To start to address this problem, we set out to isolate new mutations that influence Hedgehog signaling. We performed a mutagenesis screen for mutations that dominantly suppress Hedgehog overexpression phenotypes in the Drosophila melanogaster wing. We isolated four mutations that influence Hedgehog signaling. These were analyzed in the amenable wing system using genetic and molecular techniques. One of these four mutations affects the stability of the Hedgehog expression domain boundary, also known as the organizer in the developing wing. Another mutation affects a possible Hedgehog autoregulation mechanism, which stabilizes the same boundary.
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Affiliation(s)
- N Haines
- MRC Functional Genetics Unit, Department of Human Anatomy and Genetics, University of Oxford, Oxford OX1 3QX, United Kingdom
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17
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Affiliation(s)
- N Haines
- Methodist Hospital of Indiana, Indianapolis
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18
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Coscia MF, Trammell TR, Haines N. Thoracolumbar spinal fractures--concepts of treatment. Indiana Med 1991; 84:792-6. [PMID: 1761851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The treatment of thoracolumbar spinal fractures has evolved significantly in the last 50 years. Clear classification systems now allow physicians to predict which fracture patterns will require surgery and which may be adequately treated non-operatively. These indications, as well as a brief overview of thoracolumbar spinal fracture care, are presented.
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20
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Abstract
With the advent of prospective pricing, hospitals now have a powerful incentive to improve efficiency and reduce expenses. Prospective pricing incentives are encouraging movement of preoperative teaching out of the inpatient setting. At The Center for Hip and Knee Surgery, a 24-bed research-oriented midwestern orthopaedic hospital, we have developed and implemented an alternative approach to preadmission testing and preoperative patient education.
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