Sharon Jalene

Dr. Sharon Jalene

University of Nevada, Las Vegas, Las Vegas, Nevada, USA
orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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9 November 2020 in Journal of Community Health
Verified
Journal Article
Open access
PDF file
CCCourtney Coughenour
Courtney Coughenour
MGMaxim Gakh
Maxim Gakh
Jennifer PharrJennifer Pharr
Jennifer Pharr
TBTimothy Bungum
Timothy Bungum
SJSharon Jalene
Sharon Jalene
The numerous negative health impacts of COVID-19, which include expected changes to psychiatric illness and physical activity (PA), are disproportionately distributed in the United States. Mental illnesses and physical inactivity are prevalent among U.S. college students. This study examined whether there was a change in minutes of PA and depression scores after a stay-at-home order and examined predictors of these changes. An online survey was sent to all undergraduate and graduate students attending a large, diverse university via an electronic newsletter. The survey requested information about demographic and academic data, cardiorespiratory fitness, and depression symptoms. Paired t-tests and logistic regression were employed. Our sample (n = 194) was predominantly female (73%), young (mean age of 25), not a sexual minority (82%), and had a mean 3.4 GPA. Students reported worse depression scores (p < 0.01) and fewer minutes of PA (p = 0.01) after the stay-at-home order. There was a small but significant (p = 0.04) correlation between changes in total minutes of PA and depression scores. Senior (p = 0.05) and Hispanic (p = 0.03) students were less likely to report worsening depression scores than freshmen and white students, respectively. Asian students were significantly more likely than white students to report decreased PA. This study suggests that COVID-19 and its consequences may be contributing to reduced PA and greater depression symptoms in college students and that sub-groups have been affected differently. Targeted interventions to promote PA and support mental health may bolster the ability for resilience of college students.

8 August 2023 in Biomedicines
Verified
Journal Article
Open access
PDF file
Lidio Lima de AlbuquerqueLidio Lima de Albuquerque
Lidio Lima de Albuquerque
MPMilan Pantovic
Milan Pantovic
MCMitchell Clingo
Mitchell Clingo
KFKatherine Fischer
Katherine Fischer
SJSharon Jalene
Sharon Jalene
Brach PostonBrach Poston
Brach Poston
Parkinson’s disease (PD) is a progressive neurodegenerative disorder that leads to numerous impairments in motor function that compromise the ability to perform activities of daily living. Practical and effective adjunct therapies are needed to complement current treatment approaches in PD. Transcranial direct current stimulation applied to the cerebellum (c-tDCS) can increase motor skill in young and older adults. Because the cerebellum is involved in PD pathology, c-tDCS application during motor practice could potentially enhance motor skill in PD. The primary purpose was to examine the influence of c-tDCS on motor skill acquisition in a complex, visuomotor isometric precision grip task (PGT) in PD in the OFF-medication state. The secondary purpose was to determine the influence of c-tDCS on transfer of motor skill in PD. The study utilized a double-blind, SHAM-controlled, within-subjects design. A total of 16 participants completed a c-tDCS condition and a SHAM condition in two experimental sessions separated by a 7-day washout period. Each session involved practice of the PGT concurrent with either c-tDCS or SHAM. Additionally, motor transfer tasks were quantified before and after the practice and stimulation period. The force error in the PGT was not significantly different between the c-tDCS and SHAM conditions. Similarly, transfer task performance was not significantly different between the c-tDCS and SHAM conditions. These findings indicate that a single session of c-tDCS does not elicit acute improvements in motor skill acquisition or transfer in hand and arm tasks in PD while participants are off medications.

14 October 2020 in Brain Sciences
Verified
Journal Article
Open access
PDF file
LALidio Lima de Albuquerque
Lidio Lima de Albuquerque
MPMilan Pantovic
Milan Pantovic
MCMitchel Clingo
Mitchel Clingo
KFKatherine Fischer
Katherine Fischer
SJSharon Jalene
Sharon Jalene
Brach PostonBrach Poston
Brach Poston
Transcranial direct current stimulation of the cerebellum (c-tDCS) improves motor performance in young and old adults. Based on the cerebellar involvement in Parkinson’s disease (PD), c-tDCS could have potential to improve motor function in PD. The purpose was to determine the effects of c-tDCS on motor performance in PD while participants were on medications. The study was a randomized, double-blind, SHAM-controlled, between-subjects design. Twenty-two participants with PD were allocated to either a c-tDCS group or a SHAM group. All participants completed one experimental session and performed two motor tasks with their most affected hand in a Baseline condition (no stimulation) and an Experimental condition. The motor tasks were a visuomotor isometric precision grip task (PGT) and a rapid arm movement task (AMT). The primary dependent variables were force error and endpoint error in the PGT and AMT, respectively. There were no significant differences in force error or endpoint error in the Experimental condition between the c-tDCS and SHAM groups. These results indicate that an acute application of c-tDCS does not enhance motor performance in hand and arm tasks in PD. Longer-term c-tDCS application over multiple days may be needed to enhance motor function in PD.

18 September 2019 in Frontiers in Physiology
Verified
Journal Article
Open access
PDF file
SJSharon Jalene
Sharon Jalene
JPJennifer Pharr
Jennifer Pharr
GSGuogen Shan
Guogen Shan
BPBrach Poston
Brach Poston
Depression is a serious but treatable health issue that affects college students at an alarming rate. Improved cardiorespiratory fitness (CRF) decreases depression risk and severity but this relationship has not been fully evaluated in the college student population. Non-exercise estimated CRF (eCRF) could be used to identify students at risk for or suffering from depression. This study investigated the associations of depression and eCRF in college students. Participants (N = 437) completed a survey which included demographic and student-status questions, eCRF variables, and a validated depression instrument. Descriptive, chi-square, t-test, regression, and odds ratio analyses were employed. Depression was associated with low-fitness (X2 = 4.660, P = 0.031) and eCRF below age-predicted CRF (t = 3.28, P < 0.001). Predictors of increased depression included low-fitness, sexual orientation, current depression treatment, and GPA (R2 = 0.145–0.159; Adj R2 = 0.135–0.149). Odd ratio analyses determined that low-fitness increased the risk of reporting depression (β = 2.39, P = 0.017, 95% CI = 1.17–4.872) which remained significant when adjusted (β = 2.478, P = 0.017, 95% CI = 1.175–5.229). Adjusted odds ratio analyses also indicated increased risk of reporting depression for those in a sexual minority (β = 2.582, P = 0.001, 95% CI = 1.44,4.629) and undergoing current depression treatment (β = 2.393, P < 0.001, 95% CI = 2.393–13.043). High levels of fitness did not reduce the odds of reporting depression compared to age predicted CRF. A simple eCRF algorithm can be used to identify college student depression.

3 April 2022 in Journal of Gay & Lesbian Social Services
Verified
Journal Article
Closed access
SJSharon Jalene
Sharon Jalene
JPJennifer R. Pharr
Jennifer R. Pharr
MSManoj Sharma
Manoj Sharma
BPBrach Poston
Brach Poston
Attending college and belonging to a sexual or gender minority (SGM) are associated with increased depression. The severity of symptoms may be more pronounced due to gender identity and sexual orientation. The purpose of this study was to evaluate SGM college student depression levels and depression-related functional difficulty using a validated instrument. University students (n = 780) completed a web-based survey. Reported depression (Patient Health Questionnaire, PHQ-9) was compared between gender (female, male, and nonbinary) and sexual orientation (heterosexual, bisexual, lesbian, gay, and self-identified individuals). Nonparametric analyses were employed. Thirty percent of the students' PHQ-9 summed score indicated moderate to severe depression. Heterosexual males were the least depressed (lowest score). Bisexual and lesbian females had the highest depression scores. Bisexual (p = 0.01) and lesbian females (p = 0.006) reported increased levels of depression-related functional difficulty when compared to straight females. Significant differences between gender identity and depression in-treatment status (X-2 = 11.76, p = 0.003, Cramer's V = .123) were also found. These results provide salient information regarding mental health disparities in SGM college students that is useful for designing and implementing mental health promotion programs in this subgroup.

Verified
Open access
PDF file
SJSharon Jalene
Sharon Jalene
JCJason A. Ciccotelli
Jason A. Ciccotelli
LGLauren Gatto
Lauren Gatto
CIChristian Ison
Christian Ison
JCJaime Carbajal
Jaime Carbajal
AHAndrew Hooyman
Andrew Hooyman
Mass casualty events (MCE), such as campus shootings, can severely impact the mental health of students, faculty, and staff. This study examined the psychological effects of an MCE at a minority-serving institution and explored how sense of belonging, cardiorespiratory fitness, and treatment preferences influenced recovery. To measure the impact of the MCE on mental health an anonymous survey was administered four to five months post-MCE to university students, faculty and staff. Within the survey, participants were asked to retrospectively report their depression (PHQ-9) and anxiety (GAD-7) symptoms as they recalled them two weeks prior to the MCE, and as they experienced them in the two weeks preceding survey completion. The survey also included current measures of sense of belonging (SBS), perceived discrimination (PEDQ), estimated cardiorespiratory fitness (eCRF), and intervention preference to cope with the impacts of the MCE. Participants reported significant perceived increases in PHQ-9 and GAD-7 scores from the pre-MCE recall to current time-periods. Increases in depression (PHQ-9 scores) from pre-MCE to recent recall were larger among respondents with lower pre-MCE anxiety (GAD-7 scores), higher perceived discrimination (PEDQ), and those currently receiving treatment for anxiety or depression; respondents not receiving treatment showed no significant change. Among students, lower belonging scores were associated with greater increases in depression. Neither belonging nor perceived discrimination were strongly linked to individual variables, indicating their multifactorial nature. Most participants reported a preference to learning about alternative interventions such as exercise or meditation over pursuing university counseling services.