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TerminatedNo phase

Speed of Processing (SoP) Training Plus α-tACS

Key facts

Who runs it
Portucalense University
Where
Portugal1 site in 1 countryChoose a country to see its sites
Trial code
Status
Terminated
People taking part
40 people enrolled
Started
19 Apr 2022
Ended
5 Sept 2025
Type of study
Interventional, 3 groupsOne group gets an existing treatment, for comparison.
Treatments tested
  • alpha tACS
  • Speed of Processing Training
Record updated
12 September 2025
Why it stopped
The study was halted due to the COVID19, and then due to the lack of funding to continue the study

Who can take part

Age
65 years and older
Sex
Women and men
Healthy volunteers
Cannot take part

The registry criteria, word for word

Show all 5 criteriaShow less

Who can take part

  • Community-dwelling adults aged 65 years and older, with cognitive complains in memory or other functions, which have declined over time

Who cannot take part

  • Diagnosis of Alzheimer´s Disease, any other medical condition that may predispose participants for a forthcoming decline in function, or that may increase their risk of mortality during the duration of the study
  • Score in the mini mental examination less than 23 (or over 28)
  • Any contra-indication to tACS, severe sensory losses or communication difficulties that will prevent them from successfully complete the training
  • Had any cognitive training in the past

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

The current proposal aims to assess if the combination of Speed of Processing (SoP) training with alpha tACS (α-tACS) is able to increase brain speed of processing as assessed by the Useful Field of View (UFOV) when comparing to SoP training plus sham α-tACS. Moreover, a second aim is to assess if those changes in speed of processing transfer to other cognitive domains, such as memory, language and executive functioning. Furthermore, the mechanisms underlying these interventions will be tested, namely to assess brain connectivity and coherence as assessed by EEG. To that purpose, the aim of the current proposal is to conduct a double-blind, parallel randomized trial assessing the effects of combining SoP with alpha endogenous tACS (either active or sham) in participants with Mild Cognitive impairment (MCI).

The 3 groups in the trial

  • Active tACS plus active SoPExisting treatment, for comparison

    Active alpha range tACS plus Speed of Processing Training

    Treatment: alpha tACS and Speed of Processing Training

  • Active tACS plus sham SoPExisting treatment, for comparison

    Active alpha range tACS plus sham Speed of Processing Training

    Treatment: alpha tACS

  • Sham tACS plus active SoPExisting treatment, for comparison

    Sham alpha range tACS plus Speed of Processing Training

    Treatment: Speed of Processing Training

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Speed of Processing (SoP) Training Plus α-tACS in People With Mild Cognitive Impairment: a Double Blind, Parallel, Placebo Controlled Trial Study Protocol
Record updated
12 September 2025