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1.
Neurotrauma Rep ; 4(1): 420-432, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37405257

RESUMEN

Mild traumatic brain injury (mTBI) can have lasting consequences on cognitive functioning and well-being. Goal-Oriented Attentional Self-Regulation (GOALS) training has been shown to improve attention and executive functioning, as well as emotional functioning, in veterans with chronic TBI. An ongoing clinical trial (NCT02920788) is further evaluating GOALS training, including underlying neural mechanisms of change. The present study aimed to examine training-induced neuroplasticity by resting-state functional connectivity (rsFC) changes in GOALS versus active control. Veterans with a history of mTBI ≥6 months post-injury (N = 33) were randomly assigned to GOALS (n = 19) or an intensity-matched active control group (Brain Health Education [BHE] training; n = 14). GOALS consists of attention regulation and problem solving applied to individually defined, relevant goals through a combination of group, individual, and home practice sessions. Participants underwent multi-band resting-state functional magnetic resonance imaging at baseline and post-intervention. Exploratory 2 × 2 mixed analyses of variance identified pre-to-post changes in seed-based connectivity for GOALS versus BHE in five significant clusters. GOALS versus BHE demonstrated a significant increase in right lateral pre-frontal cortex connectivity with the right frontal pole and right middle temporal gyrus, as well as increased posterior cingulate connectivity with the pre-central gyrus. Rostral pre-frontal cortex connectivity with the right precuneus and the right frontal pole decreased in GOALS versus BHE. These GOALS-related changes in rsFC point to potential neural mechanisms underlying the intervention. This training-induced neuroplasticity may play a role in improved cognitive and emotional functioning post-GOALS.

2.
Appl Neuropsychol Adult ; 30(5): 503-511, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-34410839

RESUMEN

Goal-Oriented Attentional Self-Regulation (GOALS) is a cognitive rehabilitation training program that combines mindfulness-based attention regulation with individualized goal management strategies to improve functioning in daily life after traumatic brain injury (TBI). While not a specific target of GOALS training, previous research has indicated improvements in emotional functioning following GOALS training, specifically symptoms related to depression and posttraumatic stress disorder (PTSD). The current study is based on the hypothesis that improvements in cognitive control processes related to executive functioning and attention after GOALS training generalize to improvements in emotional functioning, thereby resulting in reductions in emotional distress. The current study analyzed archival data from 33 Veteran participants with a confirmed diagnosis of PTSD and a history of mild TBI who received either GOALS training or a psychoeducational intervention matched for time, therapist attention, and participation format. Regression analysis was used to assess the strength of the relationship between improvements in Overall Attention/Executive Functioning and decreases in hyperarousal symptoms associated with PTSD. Results from the regression analysis revealed that improvements in Overall Attention/Executive Functioning after GOALS was significantly associated with reductions in hyperarousal symptoms associated with PTSD (R2 = 0.26, F(1,15) = 5.01, ß = -.51, p < .05). The current findings suggest that cognitive improvements after GOALS training may lead to changes in emotional functioning, resulting in decreased emotional distress. This is important, particularly in VA settings, because the results potentially highlight additional areas of research and focus on the treatment of comorbid mild TBI and PTSD among Veterans.


Asunto(s)
Conmoción Encefálica , Lesiones Traumáticas del Encéfalo , Autocontrol , Trastornos por Estrés Postraumático , Veteranos , Humanos , Veteranos/psicología , Trastornos por Estrés Postraumático/complicaciones , Trastornos por Estrés Postraumático/terapia , Trastornos por Estrés Postraumático/psicología , Objetivos , Conmoción Encefálica/complicaciones , Lesiones Traumáticas del Encéfalo/psicología , Atención
3.
Arch Clin Neuropsychol ; 38(1): 106-118, 2023 Jan 21.
Artículo en Inglés | MEDLINE | ID: mdl-35965251

RESUMEN

OBJECTIVE: The Benton Visual Form Discrimination Test (VFDT) is a commonly used measure of visual discrimination and visual recognition memory and has shown promise in distinguishing between different levels of cognitive impairment. We assess the predictive diagnostic utility of the VFDT in a sample of older Veterans with cognitive concerns. METHOD: Subjects included a total of 172 mostly male Veterans over the age of 64 (mean = 76.0; SD = 7.6) recruited from a VA clinic specializing in neuropsychological assessment of older Veterans. The clinical sample included 56 subjects diagnosed with Major Neurocognitive Disorder, 74 diagnosed with Mild Neurocognitive Disorder, and 42 with No Neurocognitive Impairment. Impairment categories were modeled in separate multinomial logistic regressions with two versions of the VFDT as predictors: the Visual Form Discrimination Test-Recognition Subtest (VFDT-Rec) test (visual recognition memory) and the Visual Form Discrimination Test-Matching Subtest VFDT-Mat test (visual form discrimination). Years of education were included as a covariate. RESULTS: After adjusting for education, higher VFDT-Rec total scores were associated with lower odds of being categorized with a greater degree of cognitive/functional impairment (OR 0.66-0.83, p < .001). VFDT-Mat scores showed a similar pattern, but only reached statistical significance for the Major versus No Neurocognitive Impairment (OR = 0.77, p = .0010) and Major versus Mild comparisons (OR = 0.89, p = .0233). CONCLUSIONS: The VFDT may enhance the confidence of differential diagnosis of dementia in older adult Veterans. Formal education-adjusted norms need to be established for clinical use.


Asunto(s)
Disfunción Cognitiva , Demencia , Veteranos , Humanos , Masculino , Anciano , Femenino , Pruebas Neuropsicológicas , Demencia/diagnóstico , Demencia/psicología , Disfunción Cognitiva/diagnóstico , Percepción Visual
4.
J Neurotrauma ; 38(5): 582-592, 2021 03.
Artículo en Inglés | MEDLINE | ID: mdl-33019861

RESUMEN

Difficulties in executive-control functions are common sequelae of both traumatic brain injury (TBI) and post-traumatic stress disorder (PTSD). The goal of this study was to assess whether a cognitive rehabilitation training that was applied successfully in civilian and military TBI would be effective for military Veterans with comorbid PTSD and mild TBI (mTBI). In the previous study, Veterans with a history of mild to severe TBI improved significantly after goal-oriented attentional self-regulation (GOALS) training on measures of attention/executive function, functional task performance, and emotional regulation. The objective of this study was to assess effects of GOALS training in Veterans with comorbid PTSD and mTBI. Forty Veterans with a current PTSD diagnosis and history of mTBI (6+ months post) were randomized to either five weeks of GOALS or Brain-Health Education (BHE) training matched in time and intensity. Evaluator-blinded assessments at baseline and post-training included neuropsychological and complex functional task performance, and self-report measures of emotional functioning/regulation. After GOALS but not BHE training, participants significantly improved from baseline on primary outcome measures of: overall complex attention/executive function neuropsychological performance composite (F = 12.35, p = 0.001; Cohen d = 0.48), and overall mood disturbance -POMS emotional regulation self-report (F = 4.29, p = 0.05, Cohen d = 0.41). In addition, GOALS but not BHE participants indicated a significant decrease in PTSD symptoms (PCL-M Total Score) (F = 4.80, p = 0.05, Cohen d = 0.60), and demonstrated improvement on complex functional task performance-GPS Learning and Memory (F = 5.06, p = 0.05, Cohen d = 0.56]. Training in attentional self-regulation applied to participant-defined goals may improve cognitive functioning in Veterans with comorbid PTSD and mTBI. Improving cognitive control functioning may also improve functioning in other domains such as emotional regulation and functional performance, potentially making it particularly relevant for Veterans with a history of mTBI and comorbid psychiatric symptoms.


Asunto(s)
Atención/fisiología , Conmoción Encefálica/psicología , Función Ejecutiva/fisiología , Objetivos , Autocontrol/psicología , Trastornos por Estrés Postraumático/psicología , Veteranos/psicología , Adulto , Conmoción Encefálica/diagnóstico , Conmoción Encefálica/terapia , Femenino , Humanos , Masculino , Persona de Mediana Edad , Motivación/fisiología , Pruebas Neuropsicológicas , Método Simple Ciego , Trastornos por Estrés Postraumático/diagnóstico , Trastornos por Estrés Postraumático/terapia
5.
Cultur Divers Ethnic Minor Psychol ; 26(3): 367-377, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31697100

RESUMEN

OBJECTIVE: Goals were to empirically examine cultural suicide pathways initially theorized by the cultural theory and model of suicide, by examining relationships between cultural (family conflict, minority stress, cultural suicide sanctions), general distress (depression, hopelessness), and cultural idioms of distress factors as predictors of suicidal ideation and attempts. METHOD: Path analysis examined a moderated mediation model with a community sample of 1,077 ethnic minority and/or LGBTQ adults (average age of 24.32 (SD = 10.23) ranging from 18 to 88, 299 LGBTQ, 447 Asian American, 196 Latino/a, 60 Black or African American, 8 Hawaiian or Pacific Islander, 6 Arab American, 2 Native American, 187 mixed race). RESULTS: Multiple pathways of statistical significance emerged. First, cultural life events (family conflict and minority stress) showed direct paths to ideation and attempts and indirect paths through general (depression and hopelessness) and cultural idioms of distress to ideation and attempts. The path from minority stress to ideation was entirely explained by general/cultural distress. Second, cultural suicide sanctions moderated the relationship between family conflict and ideation. Third, cultural idioms of distress was an important component of overall distress, alongside depression and hopelessness, predicting attempts and ideation. CONCLUSIONS: Findings elucidated pathways involving both general distress and cultural factors, and pathways from cultural life events to suicide constructs independent of mental illness-related factors. Findings question utilizing mental illness as a primary suicide driver, make theoretical contributions in refining the cultural theory and model of suicide, and advance understandings of roles of cultural factors in suicide research and practice. (PsycInfo Database Record (c) 2020 APA, all rights reserved).


Asunto(s)
Depresión/psicología , Grupos Minoritarios/psicología , Autoimagen , Minorías Sexuales y de Género/psicología , Ideación Suicida , Adolescente , Adulto , Femenino , Humanos , Masculino , Persona de Mediana Edad , Factores de Riesgo , Suicidio/psicología , Adulto Joven
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