Evaluation of Cognitive State Using Neurosteer EEG System

Completed

Conditions: Cognitive Decline

Interventions: Device: Neurosteer Aurora system

Registration Number: NCT04386902

Lead Sponsor: Neurosteer Ltd.

Brief Summary: This is an observational study. Patients who fulfill all inclusion criteria and none of the exclusion criteria will be enrolled in the study, be neurologically evaluated and will go through EEG recordings while listening to an auditory cognitive assessment tool and preforming tasks. EEG recordings will be analyzed using proprietary computational analyses.

Detailed Description: One of the major problems in the prevention and treatment of neurological disorders, is the lack of cost effective and reliable tools to assess neurodegeneration on a large scale at a very early stage. Although current imaging methods give a clear image of the brain atrophy involved in neurodegenerative disorders, there are deficiencies prohibiting their usage for prevention-scanning of large high-risk population such as high price, long set-up time and the need for trained personnel to conduct the test. An objective tool to asses the level of cognitive decline is therefore needed. Such a tool may be used to determine the level of cognitive decline independent of personal interpretation and/or variance between clinicians and provide consistency in assessment across patients and between medical facilities.

The Neurosteer system provides objective neurological biomarkers using a wearable easy-to-use affordable system. The system facilitate the capture and interpretation of EEG data with only a single patch of electrodes, attached on the subject's forehead. Neurosteer examination includes completing auditory tasks while measuring brain activity with the device. The data is analyzed using machine learning methods to produce biomarkers, enabling a report of the patient's activity in real time and offline. The examination is easy to preform and can be conducted in every clinic or in patients' homes.

In this study, clinical staff will identify potential subjects and will examine the eligibility of subject according to inclusion and exclusion criteria. Patients (or legal guardian) will sign the Informed Consent Form (ICF). Research staff will set up an assessment session using Neurosteer system. In this session the patient will listen to the auditory assessment battery and perform tasks. Level of cognition will be assessed by Neurosteer technology and statistical analysis will be performed to validate the results.

Recruitment & Eligibility

Status: COMPLETED

Sex: All

Target Recruitment: 60

Inclusion Criteria

Men and women over the age of 45.
MMSE score < 30.
MMSE score ≥ 10.
Patient is able to collaborate.
No other cognitive comorbidity.
No seizure event.

Exclusion Criteria

Advanced stage of cognitive decline (MMSE < 10).
Any verbal or non-verbal form of objection from patient or form patient's family member or significant other.
Presence of several cognitive comorbidity.
Damage to integrity of scalp and/or skull.
Skin irritation in the facial and forehead area.
Significant hearing impairments.
History of drug abuse.

Study & Design

Study Type: OBSERVATIONAL

Study Design: Not specified

Arm && Interventions

Group	Intervention	Description
Patients	Neurosteer Aurora system	Patients who are assessed by the clinical staff using Mini-Mental State Exam (MMSE)

Primary Outcome Measures

Name	Time	Method
Correlation Between Cognition Level Changes as Evaluated by Current Clinical Tools (i.e. MMSE) and Brain Activity Features Extracted Using the Neurosteer Technology.	MMSE score will be taken from previous evaluation performed in the institute. Through study completion, brain activity features will be assessed using the Neurosteer EEG system, in an average of twice a week.	Cognition level changes will be evaluated by: 1. Mini Mental State Examination (MMSE). A commonly used assessment tool that evaluates cognitive functioning and produces a total possible score of 30 points. Patients who score below 24 are typically suspected of cognitive decline. 2. Neurosteer system (single channel EEG recording during cognitive auditory tasks). Using data analysis (a variant of the wavelet packet analysis and the best basis algorithm), the EEG signal is transformed into brain activity features (e.g. ST4, A0). Pearson correlation will be calculated between the mean activity of the EEG features and individual's MMSE score.

Secondary Outcome Measures

Name	Time	Method
Usability and Tolerability of the Neurosteer System in the Elderly Population	11 months	Assessment will be conducted by questioning the subject after the test regarding tolerability to remain with the test equipment for the duration of the test and his ability to respond during the test.
Overall Brain Activity in Patients	11 months	Brain activity will be measured by the EEG test. Results will be included in statistical analysis that will take into consideration the brain activity as shown in the entire testing period, using power in the known frequency bands (Alpha - Theta).
Overall Response to Auditory Stimulation	11 months	Brain activity will be measured by the EEG test, and behavioral results will be measured as well using a clicker. Results will be included in statistical analysis that will take into consideration the brain activity using power in the known frequency bands (Alpha - Theta) as well as subject responses to the auditory stimulation as shown in the entire testing period, using known parameters such as reaction times, accuracy and hit rate.