Dawn Bowers, Ph.D.

Dawn Bowers, Ph.D., ABPP-CN

(352) 273-6152

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Publications

Statistically Defined Parkinson's Disease Executive and Memory Cognitive Phenotypes: Demographic, Behavioral, and Structural Neuroimaging Comparisons.
Journal of Parkinson's disease
2021

Cognitive subtypes in individuals with essential tremor seeking deep brain stimulation.
The Clinical neuropsychologist
2021

A Validation Study of PROMIS Sleep Disturbance (PROMIS-SD) and Sleep Related Impairment (PROMIS-SRI) Item Banks in Individuals with Idiopathic Parkinson's Disease and Matched Controls.
Journal of Parkinson's disease
2021

Validity of teleneuropsychology for older adults in response to COVID-19: A systematic and critical review.
The Clinical neuropsychologist
2020

The UF Deep Brain Stimulation Cognitive Rating Scale (DBS-CRS): Clinical Decision Making, Validity, and Outcomes.
Frontiers in human neuroscience
2020

Pavlovian bias in Parkinson's disease: an objective marker of impulsivity that modulates with deep brain stimulation.
Scientific reports
2020

Neurocognitive profile of a man with Dandy-Walker malformation: Evidence of subtle cerebellar cognitive affective syndrome.
The Clinical neuropsychologist
2020

Cognitive Outcomes for Essential Tremor Patients Selected for Thalamic Deep Brain Stimulation Surgery Through Interdisciplinary Evaluations.
Frontiers in human neuroscience
2020

Co-occurrence of apathy and impulse control disorders in Parkinson disease.
Neurology
2020

A182. Trifilio, E., Tanner, J., Butterfield, L., Mangal, P., Maye, J., Marsiske, M., Price, C., Bowers, D.
The Clinical Neuropsychologist
2020

A tale of two stories: Validity of an alternative story memory test in a sample of older adults.
The Clinical neuropsychologist
2020

Sniffing out cognitive decline in patients with or without evidence of dopaminergic deficit
Clinical Parkinsonism & Related Disorders
2019

Everyday functioning in Parkinson's disease: Evidence from the Revised-Observed Tasks of Daily Living (OTDL-R)
Parkinsonism & related disorders
2019

Cognitive Impairments and Self-Reported Sleep in Early-Stage Parkinson's Disease with Versus without Probable REM Sleep Behavior Disorder.
Brain sciences
2019

Symptom Dimensions of Depression and Apathy and Their Relationship With Cognition in Parkinson's Disease.
Journal of the International Neuropsychological Society : JINS
2018

Sleep disturbances and depression severity in patients with Parkinson's disease.
Brain and behavior
2018

The Parkinson's Active Living (PAL) Program.
Journal of geriatric psychiatry and neurology
2017

Safety and efficacy of dual-lead thalamic deep brain stimulation for patients with treatment-refractory multiple sclerosis tremor: a single-centre, randomised, single-blind, pilot trial.
The Lancet. Neurology
2017

Improved cognition while cycling in Parkinson's disease patients and healthy adults.
Brain and cognition
2017

Emotion modulation of the startle reflex in essential tremor: Blunted reactivity to unpleasant and pleasant pictures.
Parkinsonism & related disorders
2017

Depressive Symptoms are Frequent in Atypical Parkinsonian Disorders.
Movement disorders clinical practice
2017

Are Parkinson's Patients More Vulnerable to the Effects of Cardiovascular Risk: A Neuroimaging and Neuropsychological Study.
Journal of the International Neuropsychological Society : JINS
2017

Alterations of emotional reactivity following righttemporal lobectomy.
Neurocase
2017

Scheduled, intermittent stimulation of the thalamus reduces tics in Tourette syndrome.
Parkinsonism & related disorders
2016

Post-exercise pulse pressure is a better predictor of executive function than pre-exercise pulse pressure in cognitively normal older adults.
Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition
2016

Parkinson's disease and the Stroop color word test: processing speed and interference algorithms.
The Clinical neuropsychologist
2016

Motivational engagement in Parkinson's disease: Preparation for motivated action.
International journal of psychophysiology : official journal of the International Organization of Psychophysiology
2016

Mood Differences Among Parkinson's Disease Patients With Mild Cognitive Impairment.
The Journal of neuropsychiatry and clinical neurosciences
2016

Interdisciplinary Parkinson's Disease Deep Brain Stimulation Screening and the Relationship to Unintended Hospitalizations and Quality of Life.
PloS one
2016

Gray and White Matter Contributions to Cognitive Frontostriatal Deficits in Non-Demented Parkinson's Disease.
PloS one
2016

Emotional Modulation of the Late Positive Potential during Picture Free Viewing in Older and Young Adults.
PloS one
2016

Apathy, Novelty Processing, and the P3 Potential in Parkinson's Disease.
Frontiers in neurology
2016

Aerobic Exercise Improves Mood, Cognition, and Language Function in Parkinson's Disease: Results of a Controlled Study.
Journal of the International Neuropsychological Society : JINS
2016

A Novel Cognitive Stress Test for the Detection of Preclinical Alzheimer Disease: Discriminative Properties and Relation to Amyloid Load.
The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry
2016

Temporal Lobe and Frontal-Subcortical Dissociations in Non-Demented Parkinson's Disease with Verbal Memory Impairment.
PloS one
2015

Reply: The 'cognitions' index of the Parkinson's disease questionnaire-39 relates to sleep disturbances and hallucinations.
Parkinsonism & related disorders
2015

Proof of principle: Transformation approach alters caudate nucleus volume and structure-function associations.
Brain imaging and behavior
2015

Orthopedic Surgery and Post-Operative Cognitive Decline in Idiopathic Parkinson's Disease: Considerations from a Pilot Study.
Journal of Parkinson's disease
2015

Neurocognitive Profile of a Woman with Susac's Syndrome: Further Evidence of Cognitive Variability.
The Clinical neuropsychologist
2015

Memory Similarities Between Essential Tremor and Parkinson's Disease: A Final Common Pathway?
The Clinical neuropsychologist
2015

Latent growth-curve analysis reveals that worsening Parkinson's disease quality of life is driven by depression.
Neuropsychology
2015

Impact of an Interdisciplinary Deep Brain Stimulation Screening Model on Post-Surgical Complications in Essential Tremor Patients.
PloS one
2015

Anxiety and Depression Are Better Correlates of Parkinson's Disease Quality of Life Than Apathy.
The Journal of neuropsychiatry and clinical neurosciences
2015

The short-term prediction of preterm birth: a systematic review and diagnostic metaanalysis.
American journal of obstetrics and gynecology
2014

The cognition and emotional well-being indices of the Parkinson's disease questionnaire-39: what do they really measure?
Parkinsonism & related disorders
2014

Influence of hypertension on neurocognitive domains in nondemented Parkinson's disease patients.
Parkinson's disease
2014

Correlations of apathy and depression with postural instability in Parkinson disease.
Journal of the neurological sciences
2014

Cognitive effects of treatment of depression with repetitive transcranial magnetic stimulation.
Cognitive and behavioral neurology : official journal of the Society for Behavioral and Cognitive Neurology
2014

Cognitive declines after deep brain stimulation are likely to be attributable to more than caudate penetration and lead location.
Brain : a journal of neurology
2014

Acute and Chronic Mood and Apathy Outcomes from a randomized study of unilateral STN and GPi DBS.
PloS one
2014

A pilot study evaluating presurgery neuroanatomical biomarkers for postoperative cognitive decline after total knee arthroplasty in older adults.
Anesthesiology
2014

The late positive potential, emotion and apathy in Parkinson's disease.
Neuropsychologia
2013

Stimulation region within the globus pallidus does not affect verbal fluency performance.
Brain stimulation
2013

Reliability of three Benton Judgment of Line Orientation short forms in idiopathic Parkinson's disease.
The Clinical neuropsychologist
2013

Psychophysiology of Emotion in Parkinson's Disease: From Perception To Action
Psychophysiology
2013

Hedonic and behavioral deficits associated with apathy in Parkinson's disease: potential treatment implications.
Movement disorders : official journal of the Movement Disorder Society
2013

Edith Kaplan and the Boston Process Approach.
The Clinical neuropsychologist
2013

Differential and better response to deep brain stimulation of chorea compared to dystonia in Huntington's disease.
Stereotactic and functional neurosurgery
2013

A trial of scheduled deep brain stimulation for Tourette syndrome: moving away from continuous deep brain stimulation paradigms.
JAMA neurology
2013

A latent class analysis of psychological disturbance in Parkinson's disease.
International journal of geriatric psychiatry
2013

Toys and gadgets: construct validity of apathy in Parkinson's disease.
The Journal of neuropsychiatry and clinical neurosciences
2012

The prevalence of fatigue following deep brain stimulation surgery in Parkinson's disease and association with quality of life.
Parkinson's disease
2012

Selection of deep brain stimulation candidates in private neurology practices: referral may be simpler than a computerized triage system.
Neuromodulation : journal of the International Neuromodulation Society
2012

Mood and motor trajectories in Parkinson's disease: multivariate latent growth curve modeling.
Neuropsychology
2012

Health comorbidities and cognition in 1948 patients with idiopathic Parkinson's disease.
Parkinsonism & related disorders
2012

Emotional state affects gait initiation in individuals with Parkinson's disease.
Cognitive, affective & behavioral neuroscience
2012

Dimensions of apathy in Parkinson's disease: exploratory factor analysis of the apathy scale.
Journal of Parkinson's disease
2012

Components of depression in Parkinson disease.
Journal of geriatric psychiatry and neurology
2012

Characterizing cognitive aging in humans with links to animal models.
Frontiers in aging neuroscience
2012

Challenges and opportunities for characterizing cognitive aging across species.
Frontiers in aging neuroscience
2012

Are selective serotonin reuptake inhibitors associated with greater apathy in Parkinson's disease?
The Journal of neuropsychiatry and clinical neurosciences
2012

Age as a Moderator of Fatigue Severity On a Task of Cognitive Switching
Gerontologist
2012

Addiction-like manifestations and Parkinson's disease: a large single center 9-year experience.
The International journal of neuroscience
2012

The trajectory of apathy after deep brain stimulation: from pre-surgery to 6 months post-surgery in Parkinson's disease.
Parkinsonism & related disorders
2011

The case for testing memory with both stories and word lists prior to dbs surgery for Parkinson's Disease.
The Clinical neuropsychologist
2011

Smile and laughter induction and intraoperative predictors of response to deep brain stimulation for obsessive-compulsive disorder.
NeuroImage
2011

Pre- and post- GPi DBS neuropsychological profiles in a case of X-linked dystonia-Parkinsonism.
The Clinical neuropsychologist
2011

Pilot Study On the Effects of Poor Sleep On Executive Functioning in Essential Tremor and Parkinson's Disease
Sleep
2011

Patient-specific analysis of the relationship between the volume of tissue activated during DBS and verbal fluency.
NeuroImage
2011

Measurement of patient-centered outcomes in Parkinson's disease: what do patients really want from their treatment?
Parkinsonism & related disorders
2011

Emotional State Impacts the Initiation of Gait in Individuals With Parkinson's Disease and Healthy Older Adults
Journal of Sport & Exercise Psychology
2011

Emotion and ocular responses in Parkinson's disease.
Neuropsychologia
2011

Do stable patients with a premorbid depression history have a worse outcome after deep brain stimulation for Parkinson disease?
Neurosurgery
2011

Do patient's get angrier following STN, GPi, and thalamic deep brain stimulation.
NeuroImage
2011

Detecting Emotional Significance: the Late Positive Potential in Parkinson'S Disease
Psychophysiology
2011

DBS candidates that fall short on a levodopa challenge test: alternative and important indications.
The neurologist
2011

Clock drawing in the Montreal Cognitive Assessment: recommendations for dementia assessment.
Dementia and geriatric cognitive disorders
2011

Chronometry of Affective Startle Modulation in Parkinson'S Disease Without Depression
Psychophysiology
2011

Binge eating in Parkinson's disease: prevalence, correlates and the contribution of deep brain stimulation.
The Journal of neuropsychiatry and clinical neurosciences
2011

Apathy and depression: separate factors in Parkinson's disease.
Journal of the International Neuropsychological Society : JINS
2011

The Pupil as a Measure of Emotion-Modulated Arousal in Parkinson's Disease
Psychophysiology
2010

Right and left dorsolateral pre-frontal rTMS treatment of refractory depression: a randomized, sham-controlled trial.
Psychiatry research
2010

Prevalence of Twiddler's syndrome as a cause of deep brain stimulation hardware failure.
Stereotactic and functional neurosurgery
2010

Parkinson Patients Care About Improving Their Sleep Difficulties: Do We Care?
Sleep
2010

Factors related to extended hospital stays following deep brain stimulation for Parkinson's disease.
Parkinsonism & related disorders
2010

Entorhinal Cortex Volume in Older Adults: Reliability and Validity Considerations for Three Published Measurement Protocols
Journal of the International Neuropsychological Society
2010

Cognitive declines after unilateral deep brain stimulation surgery in Parkinson's disease: a controlled study using Reliable Change, part II.
The Clinical neuropsychologist
2010

Startle reflex hyporeactivity in Parkinson's disease: an emotion-specific or arousal-modulated deficit?
Neuropsychologia
2009

Neuropsychological profile of a Filipino gentleman with X-linked dystonia-parkinsonism: a case report of Lubag disease.
The Clinical neuropsychologist
2009

Is the n-back task a valid neuropsychological measure for assessing working memory?
Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists
2009

Inappropriate crying and laughing in Parkinson disease and movement disorders.
The world journal of biological psychiatry : the official journal of the World Federation of Societies of Biological Psychiatry
2009

How cautious should we be when assessing apathy with the Unified Parkinson's Disease Rating Scale?
Movement disorders : official journal of the Movement Disorder Society
2009

Greater improvement in quality of life following unilateral deep brain stimulation surgery in the globus pallidus as compared to the subthalamic nucleus.
Journal of neurology
2009

Examination of the Lille Apathy Rating Scale in Parkinson disease.
Movement disorders : official journal of the Movement Disorder Society
2009

Does laterality of motor impairment tell us something about cognition in Parkinson disease?
Parkinsonism & related disorders
2009

Depressive symptoms in Parkinson disease correlate with impaired global and specific cognitive performance.
Journal of geriatric psychiatry and neurology
2009

Cognitive declines one year after unilateral deep brain stimulation surgery in Parkinson's disease: a controlled study using reliable change.
The Clinical neuropsychologist
2009

Cognition and mood in Parkinson's disease in subthalamic nucleus versus globus pallidus interna deep brain stimulation: the COMPARE trial.
Annals of neurology
2009

A Small Pilot Study of Smile Induction in the Nih Ocd Dbs Cohort: a Potential Predictor of Therapy Response?
Annals of Neurology
2009

Role of Dopaminergic Medications in Influencing Masked Facies in Pd: Timing Is Key
Movement Disorders
2008

Intact Global Cognition On the Drs-2 in Parkinson Disease May Be Misleading
Movement Disorders
2008

Does deep brain stimulation induce apathy in Parkinson's disease?
Frontiers in bioscience : a journal and virtual library
2008

Declines in Memory and Processing Speed After Deep Brain Stimulation Surgery for Parkinson Disease
Movement Disorders
2008

Cognitive Declines One Year After Unilateral Stn and Gpi Deep Brain Stimulation Surgery in Parkinson'S Disease
Movement Disorders
2008

Laterality, region, and type of motor dysfunction correlate with cognitive impairment in Parkinson's disease.
Movement disorders : official journal of the Movement Disorder Society
2007

Differences in startle reactivity during the perception of angry and fearful faces.
Emotion (Washington, D.C.)
2007

Depression symptoms in movement disorders: comparing Parkinson's disease, dystonia, and essential tremor.
Movement disorders : official journal of the Movement Disorder Society
2007

Deep brain stimulation in the internal capsule and nucleus accumbens region: responses observed during active and sham programming.
Journal of neurology, neurosurgery, and psychiatry
2007

Deep brain stimulation and the role of the neuropsychologist.
The Clinical neuropsychologist
2007

Abnormal affective startle modulation in individuals with psychogenic [corrected] movement disorder.
Movement disorders : official journal of the Movement Disorder Society
2007

Startling facts about emotion in Parkinson's disease: blunted reactivity to aversive stimuli.
Brain : a journal of neurology
2006

Long-term habituation of the smile response with deep brain stimulation.
Neurocase
2006

Faces of emotion in Parkinsons disease: micro-expressivity and bradykinesia during voluntary facial expressions.
Journal of the International Neuropsychological Society : JINS
2006

Dissociating apathy and depression in Parkinson disease.
Neurology
2006

Affect in patients with epilepsy undergoing video/EEG monitoring: retrospective versus momentary assessment and temporal relationship to seizures.
Epilepsy & behavior : E&B
2006

Mild cognitive impairment in Parkinson's disease: the challenge and the promise.
Neuropsychiatric disease and treatment
2005

Mayo's older African American normative studies: confirmatory factor analysis of a core battery.
Journal of the International Neuropsychological Society : JINS
2005

Lateralized asymmetry of facial motor evoked potentials.
Neurology
2005

What's in a "smile?" Intra-operative observations of contralateral smiles induced by deep brain stimulation.
Neurocase
2004

Self-awareness of deficits in Parkinson disease.
The Clinical neuropsychologist
2004

Asymmetry of the hippocampus and amygdala in MRI volumetric measurements of normal adults.
Journal of the International Neuropsychological Society : JINS
2004

Mental object rotation in Parkinson's disease.
Journal of the International Neuropsychological Society : JINS
2003

Cerebral blood flow changes in depressed patients after treatment with repetitive transcranial magnetic stimulation: evidence of individual variability.
Neuropsychiatry, neuropsychology, and behavioral neurology
2002

Verbal encoding deficits in a patient with a left retrosplenial lesion.
Neurocase
2001

Emotional conversations in Parkinson's disease.
Neurology
2001

Emotional and physiological responses to false feedback.
Cortex; a journal devoted to the study of the nervous system and behavior
2000

Cognitive and vestibulo-proprioceptive components of spatial ability in Parkinson's disease.
Neuropsychologia
2000

Pseudoneglect: effects of hemispace on a tactile line bisection task.
Neuropsychologia
1980

Research Interests

Current research focuses on psychophysiological and behavioral signatures of cognitive/emotional change associated with normal aging and  Parkinson disease  and novel treatment approaches for apathy and executive dysfunction.  Her laboratory uses a variety of different tools to investigate hypothesis driven research ranging from transcranial magnetic stimulation, psychophysiology/electrophysiology (ERP), face digitizing, computational modeling, to experimental cognitive probes.  

Current funding

NIH/NINDS, T32-NS082168-06,  Interdisciplinary Training in Movement Disorders and Neurorestoration. MPI:  D. Bowers & D. Vaillancourt

NIH/NIA  R01-AG064587, Revitalizing Cognition in Older Adults at Risk for Alzheimer’s disease with Near Infrared Photobiomodulation. MPI: D. Bowers, A. Woods, & G. Alexander.

Parkinson Foundation Impact Award IMP-1938, Revitalizing cognition and motor symptoms in patients with Parkinson disease, PI: D. Bowers

NIH/NIA R21-AG057200, Determining plasticity of brain-regulatory mechanisms related to emotion processing: A Neurofeedback Approach in Aging and Parkinson Disease. MPI: D. Bowers & N. Ebner

Florida Department of Health Ed and Ethel Moore Alzheimer’s Program (Grant #20A15), Determining Plasticity of Brain-Regulatory Mechanisms Related to Emotion Processing: A Neurofeedback Approach in Older Adults with Amnestic Mild Cognitive Impairment. PI: Ebner; Bowers Co-I

NIH/NIA R01-AG12802177, Uncovering and Surveilling Financial Deception Risk in Aging, Supplement. PI: Ebner Co-I Bowers

NIH/NINSA-1UH3NS109845, Dual Lead Thalamic DBR-DBS Interface for Closed Loop Control of Severe Essential Tremor. MPI: Oweiss & Foote; Co-I Bowers

McKnight Brain Research Foundation. A Pilot Multi-Site Intervention with Near Infrared Stimulation. MPI: D. Bowers, G. Alexander, A. Woods

NIH R01 HD091658-01. Mechanisms of airway protection dysfunction in Parkinson's disease. PI: K. Hegland, Co-I: D. Bowers

NIH/NINDS R01-NS096008, The Human Thalamocortical Network in Tourette. MPI: A. Gunduz & M.S. Okun, Co-I Bowers

NIH/NINDS UH3-NS095553, Closing the Loop on Tremor: A Responsive Deep Brain Stimulator for the Treatment. MPI: G. Gunduz & K. Foote, Co-I Bowers.

Recently Completed Funding

Fogarty Foundation, Dose Response Relationship between Near Infrared Stimulation and Brain Activity using Neuroimaging. PI: P. Sinha & Bowers (Mentor).

NIH/NINDS R21NS079767, Emotion Regulation, Executive Function, and Parkinson Disease, PI: D. Bowers

NIH/ NINDS R01-NS50633, Masked Faces in Parkinson Disease: Mechanism and Treatment. PI: D. Bowers

NIH/NIA R21-AG033284, Language and Executive Function in Parkinson’s Disease: Effects of dual task and exercise. MPI: L. Altmann & C. Hass; Bowers Co-I.

NIH/NIMH R01 MH62458, Priming, TMS, and Hemispheric Asymmetries. PI: D. Bowers.

Michael J. Fox Foundation, Repetitive Transcranial Magnetic Stimulation for theTreatment of Apathy in Parkinson’s Disease (The Restore Study). MPI: H.Fernandez & D. Bowers