Stimulating the Aging Brain Using Brain and Sensory Stimulation
ConditionPrimary Progressive Aphasia
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age45+
SponsorMedical College of Wisconsin
About this trial
The goal of this project is to investigate whether transcranial electrical stimulation and sensory stimulation affect language outcomes in individuals with primary progressive aphasia (PPA). The main questions it aims to answer are:
Does transcranial alternating current stimulation (tACS) affect verbal short-term memory (STM) in individuals with PPA? Does a single session of multisensory stimulation affect verbal STM in individuals with PPA? Researchers will compare active tACS to sham tACS (a fake stimulation condition) to see if active tACS improves verbal STM. Researchers will compare pre-multisensory stimulation to post-stimulation performance to see if multisensory stimulation improves verbal STM.
Participants will:
Undergo EEG, MRI (anatomical and functional) May complete a cognitive exam Undergo tACS over 3 separate sessions Undergo multisensory stimulation Complete language tasks before, during and/or after stimulation
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Clinical exam supports diagnosis of PPA and/or MCI with no report of difficulty functioning in basic or instrumental activities of daily living.
Completed clinical cognitive exam within 6 months of study baseline visit OR neuropsychological research battery within 6 months of study baseline visit.
Disqualifiers
Evidence of dementia at baseline
Known history of neoplasm, symptomatic stroke, moderate to severe traumatic brain injury, or other significant neurologic event
Age <45 years.
Evidence of severe psychiatric illness (e.g., bipolar disorder, schizophrenia).
Trial design
Design model
Single group
Treatments tested in this trial
tACS or multisensory stimulation
DeviceActive or sham tACS Light and/or sound flickers
Treatment groups
20 Participants
are divided into 1 treatment groupGroup A: tACS or multisensory stimulationExperimental treatment 1 intervention
Trial outcomes
Primary outcomes
1
Changes in STM capacity assessed using a verbal STM task
Improvement in STM capacity with in-phase tACS and worsening of STM capacity with anti-phase tACS compared to sham tACS
Time frame
Changes monitored over pre, during and immediately after 20 minutes of tACS2
Changes in STM capacity with multisensory stimulation using a verbal STM task
Improvement in STM capacity post-stimulation compared to pre-stimulation
Time frame
Changes monitored pre and immediately after 20 minutes of stimulationSponsors and contacts
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Source ClinicalTrials.gov