Full Text Journal Articles by
Author Benjamin M Hampstead

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HD-tDCS as a neurorehabilitation technique for a case of post-anoxic leukoencephalopathy.

Sarah Garcia, Benjamin M Hampstead,

Post-anoxic leukoencephalopathy is a rare event that causes global demyelination secondary to anoxic injury. Given the nature and extent of the damage, cognitive and functional deficits are typically chronic even after standard therapies. Here, we describe a novel treatment approach that used high definition transcranial direct-current stimulation (HD-tDCS) with a ... Read more >>

Neuropsychol Rehabil (Neuropsychological rehabilitation)
[2020, :1-21]

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Mnemonic strategy training modulates functional connectivity at rest in mild cognitive impairment: Results from a randomized controlled trial.

Sharon Sanz Simon, Benjamin M Hampstead, Mariana P Nucci, Luiz Kobuti Ferreira, Fábio L S Duran, Luciana M Fonseca, Maria da Graça M Martin, Renata Ávila, Fábio H G Porto, Sônia M D Brucki, Camila B Martins, Lyssandra S Tascone, Edson Amaro Jr, Geraldo F Busatto, Cássio M C Bottino,

Introduction:Mnemonic strategy training (MST) has been shown to improve cognitive performance and increase brain activation in those with mild cognitive impairment (MCI). However, little is known regarding the effects of MST on functional connectivity (FC) at rest. The aim of the present study was to investigate the MST focused on ... Read more >>

Alzheimers Dement (N Y) (Alzheimer's & dementia (New York, N. Y.))
[2020, 6(1):e12075]

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Toward a theory-based specification of non-pharmacological treatments in aging and dementia: Focused reviews and methodological recommendations.

Sietske A M Sikkes, Yi Tang, Roos J Jutten, Linda M P Wesselman, Lyn S Turkstra, Henry Brodaty, Linda Clare, Erin Cassidy-Eagle, Kay L Cox, Gaël Chételat, Sophie Dautricourt, Klodian Dhana, Hiroko Dodge, Rose-Marie Dröes, Benjamin M Hampstead, Thomas Holland, Amit Lampit, Kate Laver, Antoine Lutz, Nicola T Lautenschlager, Susan M McCurry, Franka J M Meiland, Martha Clare Morris, Kimberly D Mueller, Ruth Peters, Gemma Ridel, Aimee Spector, Jenny T van der Steen, Jeanette Tamplin, Zara Thompson, , Alex Bahar-Fuchs,

INTRODUCTION:Non-pharmacological treatments (NPTs) have the potential to improve meaningful outcomes for older people at risk of, or living with dementia, but research often lacks methodological rigor and continues to produce mixed results. METHODS:In the current position paper, experts in NPT research have specified treatment targets, aims, and ingredients using an ... Read more >>

Alzheimers Dement (Alzheimer's & dementia : the journal of the Alzheimer's Association)
[2020, :]

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The design, evaluation, and reporting on non-pharmacological, cognition-oriented treatments for older adults: Results of a survey of experts.

Sharon Sanz Simon, Mary Castellani, Sylvie Belleville, Tzvi Dwolatzky, Benjamin M Hampstead, Alex Bahar-Fuchs,

Introduction:Cognitive decline and dementia significantly affect independence and quality of life in older adults; therefore, it is critical to identify effective cognition-oriented treatments (COTs; eg, cognitive training, rehabilitation) that can help maintain or enhance cognitive functioning in older adults, as well as reduce dementia risk or alleviate symptoms associated with ... Read more >>

Alzheimers Dement (N Y) (Alzheimer's & dementia (New York, N. Y.))
[2020, 6(1):e12024]

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Reliable use of silver chloride HD-tDCS electrodes.

Benjamin M Hampstead, Marny Ehmann, Annalise Rahman-Filipiak,

Brain Stimul (Brain stimulation)
[2020, 13(4):1005-1007]

Cited: 1 time

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The effects of strategy training on spatial memory in diencephalic amnesia: a randomized controlled study.

Roy P C Kessels, Sjoerd Murk, Serge J W Walvoort, Benjamin M Hampstead,

Alcoholic Korsakoff's syndrome is characterized by severe amnesia, also affecting spatial memory. To date, research on cognitive rehabilitation in these patients is scarce. Aim of the present study is to examine the efficacy of a mnemonic strategy training in patients with Korsakoff's syndrome. A randomized controlled exploratory study was performed. ... Read more >>

Cogn Process (Cognitive processing)
[2020, 21(2):315-319]

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Neurophysiological mechanisms and outcomes of nonpharmacologic interventions for neurological disease or injury: Introduction to special issue.

Benjamin M Hampstead, Alex Bahar-Fuchs,

Int J Psychophysiol (International journal of psychophysiology : official journal of the International Organization of Psychophysiology)
[2020, 154:1-2]

Cited: 0 times

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Variable symptomatic and neurophysiologic response to HD-tDCS in a case series with posttraumatic stress disorder.

Benjamin M Hampstead, Nathan Mascaro, Stephen Schlaefflin, Arijit Bhaumik, Julia Laing, Scott Peltier, Brian Martis,

Chronic Posttraumatic stress disorder (PTSD), characterized by symptoms of re-experiencing, hyperarousal, and avoidance, is challenging to treat as a significant proportion of patients remain symptomatic following even empirically supported interventions. The current case series investigated the effects of up to 10 sessions of high definition transcranial direct current stimulation (HD-tDCS) ... Read more >>

Int J Psychophysiol (International journal of psychophysiology : official journal of the International Organization of Psychophysiology)
[2020, 154:93-100]

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TASK-SPECIFIC METACOGNITIVE ACCURACY DECLINES ACROSS THE DEMENTIA-ALZHEIMER’S TYPE SPECTRUM.

Annalise M Rahman-Filipiak, Arijit Bhaumik, Bruno Giordani, Henry Paulson, Benjamin M Hampstead,

AbstractSubjective cognitive complaints (SCCs) remain part of the diagnostic criteria for amnestic mild cognitive impairment (aMCI), the prodromal stage of dementia - Alzheimer’s type (DAT), despite weak relationships between self-reported and objectively-measured functioning. Most metacognitive measures focus on ratings of global retrospective memory rating only; greater subtlety in measurement of ... Read more >>

Innov Aging (Innovation in aging)
[2019, 3(Suppl 1):S2-S2]

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Model-based assessment and neural correlates of spatial memory deficits in mild cognitive impairment.

Alexander S Weigard, K Sathian, Benjamin M Hampstead,

Mild cognitive impairment (MCI) is characterized by subjective and objective memory impairments within the context of generally intact everyday functioning. Such memory deficits are typically thought to arise from medial temporal lobe dysfunction; however, differences in memory task performance can arise from a variety of altered processes (e.g., strategy adjustments) ... Read more >>

Neuropsychologia (Neuropsychologia)
[2020, 136:107251]

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Transcranial electrical stimulation nomenclature.

Marom Bikson, Zeinab Esmaeilpour, Devin Adair, Greg Kronberg, William J Tyler, Andrea Antal, Abhishek Datta, Bernhard A Sabel, Michael A Nitsche, Colleen Loo, Dylan Edwards, Hamed Ekhtiari, Helena Knotkova, Adam J Woods, Benjamin M Hampstead, Bashar W Badran, Angel V Peterchev,

Transcranial electrical stimulation (tES) aims to alter brain function non-invasively by applying current to electrodes on the scalp. Decades of research and technological advancement are associated with a growing diversity of tES methods and the associated nomenclature for describing these methods. Whether intended to produce a specific response so the ... Read more >>

Brain Stimul (Brain stimulation)
[2019, 12(6):1349-1366]

Cited: 1 time

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Impact of using a broad-based multi-institutional approach to build capacity for non-communicable disease research in Thailand.

Kathleen Potempa, Benjaporn Rajataramya, Debra L Barton, Naruemol Singha-Dong, Rob Stephenson, Ellen M L Smith, Matthew Davis, Ivo Dinov, Benjamin M Hampstead, James E Aikens, Laura Saslow, Philip Furspan, Atiya Sarakshetrin, Srijan Pupjain,

Thailand's transition to high middle-income country status has been accompanied by demographic changes and associated shifts in the nation's public health challenges. These changes have necessitated a significant shift in public health focus from the treatment of infectious diseases to the more expensive and protracted management of non-communicable diseases (NCDs) ... Read more >>

Health Res Policy Syst (Health research policy and systems)
[2019, 17(1):62]

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Mnemonic strategy training increases neocortical activation in healthy older adults and patients with mild cognitive impairment.

Benjamin M Hampstead, Anthony Y Stringer, Randall F Stilla, K Sathian,

Learning and memory deficits characterize the diagnosis of amnestic mild cognitive impairment (aMCI), which is widely viewed as a clinical precursor to Alzheimer's type dementia. There is a growing interest in non-pharmacologic interventions, such as mnemonic strategies, for improving learning and memory in patients with aMCI as well as for ... Read more >>

Int J Psychophysiol (International journal of psychophysiology : official journal of the International Organization of Psychophysiology)
[2020, 154:27-36]

Cited: 2 times

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Training gains and transfer effects after mnemonic strategy training in mild cognitive impairment: A fMRI study.

Sharon S Simon, Benjamin M Hampstead, Mariana P Nucci, Fábio L S Duran, Luciana M Fonseca, Maria da Graça M Martin, Renata Ávila, Fábio H G Porto, Sônia M D Brucki, Camila B Martins, Lyssandra S Tascone, Edson Amaro, Geraldo F Busatto, Cássio M C Bottino,

Prior work has revealed that mnemonic strategy training (MST) can enhance memory for specific content and engages regions in the frontoparietal cognitive control network. Evidence of transfer to novel content is less clear. Here, we provide secondary analysis of functional magnetic resonance imaging (fMRI) data acquired during a randomized controlled ... Read more >>

Int J Psychophysiol (International journal of psychophysiology : official journal of the International Organization of Psychophysiology)
[2020, 154:15-26]

Cited: 3 times

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Neurophysiologic and Cognitive Changes Arising from Cognitive Training Interventions in Persons with Mild Cognitive Impairment: A Systematic Review.

Eliane C Miotto, Alana X Batista, Sharon S Simon, Benjamin M Hampstead,

Background:Previous reviews have generally reported cognitive//behavioral improvements after cognitively oriented treatments (COTs) in persons with MCI. However, comparatively little is known about the neural mechanisms associated with such cognitive improvement. Objective:The primary aim of the current review was to examine neurophysiological changes measured by functional magnetic resonance imaging (fMRI) and ... Read more >>

Neural Plast (Neural plasticity)
[2018, 2018:7301530]

Cited: 2 times

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Cognitive and Brain Activity Changes After Mnemonic Strategy Training in Amnestic Mild Cognitive Impairment: Evidence From a Randomized Controlled Trial.

Sharon S Simon, Benjamin M Hampstead, Mariana P Nucci, Fábio L S Duran, Luciana M Fonseca, Maria da Graça M Martin, Renata Ávila, Fábio H G Porto, Sônia M D Brucki, Camila B Martins, Lyssandra S Tascone, Edson Amaro, Geraldo F Busatto, Cássio M C Bottino,

Background: Mnemonic strategy training (MST) has been shown to improve cognitive performance in amnestic mild cognitive impairment (a-MCI), however, several questions remain unresolved. The goal of the present study was to replicate earlier pilot study findings using a randomized controlled design and to evaluate transfer effects and changes in brain ... Read more >>

Front Aging Neurosci (Frontiers in aging neuroscience)
[2018, 10:342]

Cited: 4 times

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Diminished neural network dynamics in amnestic mild cognitive impairment.

Einat K Brenner, Benjamin M Hampstead, Emily C Grossner, Rachel A Bernier, Nicholas Gilbert, K Sathian, Frank G Hillary,

Mild cognitive impairment (MCI) is widely regarded as an intermediate stage between typical aging and dementia, with nearly 50% of patients with amnestic MCI (aMCI) converting to Alzheimer's dementia (AD) within 30 months of follow-up (Fischer et al., 2007). The growing literature using resting-state functional magnetic resonance imaging reveals both increased ... Read more >>

Int J Psychophysiol (International journal of psychophysiology : official journal of the International Organization of Psychophysiology)
[2018, 130:63-72]

Cited: 1 time

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Tolerability and blinding of 4x1 high-definition transcranial direct current stimulation (HD-tDCS) at two and three milliamps.

Jaclyn Reckow, Annalise Rahman-Filipiak, Sarah Garcia, Stephen Schlaefflin, Oliver Calhoun, Alexandre F DaSilva, Marom Bikson, Benjamin M Hampstead,

BACKGROUND:Transcranial direct current stimulation (tDCS) is an in-demand form of neuromodulation generally regarded as safe and well tolerated. However, few studies have examined the safety, tolerability, or blinding of High Definition (HD-) tDCS, especially in older adults and at stimulation intensities of 2 milliamps (mA) or greater. OBJECTIVE:We examined the ... Read more >>

Brain Stimul (Brain stimulation)
[2018, 11(5):991-997]

Cited: 6 times

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Self- and Informant-Reported Memory Complaints: Frequency and Severity in Cognitively Intact Individuals and those with Mild Cognitive Impairment and Neurodegenerative Dementias.

Annalise M Rahman-Filipiak, Bruno Giordani, Judith Heidebrink, Arijit Bhaumik, Benjamin M Hampstead,

BACKGROUND:Subjective memory complaints (SMCs) are incorporated into the diagnosis of mild cognitive impairment (MCI) and neurodegenerative dementias; however, the relative frequency of SMCs in cognitively intact older adults and those with different types of dementia is poorly understood. Similarly, the concordance between self- versus informant-reported SMCs has not been compared ... Read more >>

J Alzheimers Dis (Journal of Alzheimer's disease : JAD)
[2018, 65(3):1011-1027]

Cited: 0 times

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Continuous measurement of object location memory is sensitive to effects of age and mild cognitive impairment and related to medial temporal lobe volume.

Benjamin M Hampstead, Stephen Towler, Anthony Y Stringer, Krishnankutty Sathian,

Introduction:We present findings of a novel and ecologically relevant associative memory test, the Object Location Touchscreen Test (OLTT), which was posited as sensitive to early medial temporal lobe compromise associated with mild cognitive impairment (MCI). Methods:A total of 114 participants, including healthy young and older controls and patients with MCI, ... Read more >>

Alzheimers Dement (Amst) (Alzheimer's & dementia (Amsterdam, Netherlands))
[2018, 10:76-85]

Cited: 2 times

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Incomplete evidence that increasing current intensity of tDCS boosts outcomes.

Zeinab Esmaeilpour, Paola Marangolo, Benjamin M Hampstead, Sven Bestmann, Elisabeth Galletta, Helena Knotkova, Marom Bikson,

BACKGROUND:Transcranial direct current stimulation (tDCS) is investigated to modulate neuronal function by applying a fixed low-intensity direct current to scalp. OBJECTIVES:We critically discuss evidence for a monotonic response in effect size with increasing current intensity, with a specific focus on a question if increasing applied current enhance the efficacy of ... Read more >>

Brain Stimul (Brain stimulation)
[2018, 11(2):310-321]

Cited: 23 times

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Advances in neurocognitive rehabilitation research from 1992 to 2017: The ascension of neural plasticity.

Bruce Crosson, Benjamin M Hampstead, Lisa C Krishnamurthy, Venkatagiri Krishnamurthy, Keith M McGregor, Joe R Nocera, Simone Roberts, Amy D Rodriguez, Stella M Tran,

OBJECTIVE:The last 25 years have seen profound changes in neurocognitive rehabilitation that continue to motivate its evolution. Although the concept of nervous system plasticity was discussed by William James (1890), the foundation for experience-based plasticity had not reached the critical empirical mass to seriously impact rehabilitation research until after 1992. ... Read more >>

Neuropsychology (Neuropsychology)
[2017, 31(8):900-920]

Cited: 2 times

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Response to letter to the editor: Safety of transcranial direct current stimulation: Evidence based update 2016.

Marom Bikson, Pnina Grossman, Adantchede Louis Zannou, Greg Kronberg, Dennis Truong, Paulo Boggio, Andre R Brunoni, Leigh Charvet, Felipe Fregni, Brita Fritsch, Bernadette Gillick, Roy H Hamilton, Benjamin M Hampstead, Adam Kirton, Helena Knotkova, David Liebetanz, Anli Liu, Colleen Loo, Michael A Nitsche, Janine Reis, Jessica D Richardson, Alexander Rotenberg, Peter E Turkeltaub, Adam J Woods,

Brain Stimul (Brain stimulation)
[2017, 10(5):986-987]

Cited: 1 time

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Combined mnemonic strategy training and high-definition transcranial direct current stimulation for memory deficits in mild cognitive impairment.

Benjamin M Hampstead, Krishnankutty Sathian, Marom Bikson, Anthony Y Stringer,

INTRODUCTION:Memory deficits characterize Alzheimer's dementia and the clinical precursor stage known as mild cognitive impairment. Nonpharmacologic interventions hold promise for enhancing functioning in these patients, potentially delaying functional impairment that denotes transition to dementia. Previous findings revealed that mnemonic strategy training (MST) enhances long-term retention of trained stimuli and is ... Read more >>

Alzheimers Dement (N Y) (Alzheimer's & dementia (New York, N. Y.))
[2017, 3(3):459-470]

Cited: 4 times

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Translational MRI Volumetry with NeuroQuant: Effects of Version and Normative Data on Relationships with Memory Performance in Healthy Older Adults and Patients with Mild Cognitive Impairment.

Julija Stelmokas, Lance Yassay, Bruno Giordani, Hiroko H Dodge, Ivo D Dinov, Arijit Bhaumik, K Sathian, Benjamin M Hampstead,

NeuroQuant (NQ) is a fully-automated program that overcomes several existing limitations in the clinical translation of MRI-derived volumetry. The current study characterized differences between the original (NQ1) and an updated NQ version (NQ2) by 1) replicating previously identified relationships between neuropsychological test performance and medial temporal lobe volumes, 2) evaluating ... Read more >>

J Alzheimers Dis (Journal of Alzheimer's disease : JAD)
[2017, 60(4):1499-1510]

Cited: 6 times

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