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July 2, 2025QeiosOpen Access

Evaluating Neurostellar’s Wearable Device Along with Its Robust Multimodal Approach for Real-Time Mental State Assessment: A Validation Study

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Key result

Neurostellar's multimodal wearable successfully classifies all cognitive and affective tasks versus chance.

  • z=13.08-13.11 (Random Forest)
  • P<0.001
  • n=15

Why the study?

Consumer wearables for mental state assessment face scepticism regarding data quality, prompting evaluation of whether a consumer-grade EEG/PPG wearable headband can reliably capture mental states.

Does Neurostellar's wearable device reliably capture mental states compared to a laboratory-standard EEG/ECG device in healthy adults?

Population

15 adults across 31 resting sessions

Comparison

Consumer-grade EEG/PPG wearable headband vs laboratory-standard EEG/ECG device

Design

Validation study

Authors

VMVrinda MarigowdaASArun SasidharanVVVarsha Vijayan

Discussion

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Overview

May enable naturalistic mental-state tracking; leaves open validation against lab EEG/ECG and clinical utility.

Study Design

Type

Observational (n=15)

Structured PICO

Does Neurostellar's wearable device reliably capture mental states compared to a laboratory-standard EEG/ECG device in healthy adults?

P
Population
15 adults (aged 18-50 years), mean age 33.2, 8 males, with normal or corrected vision/hearing, no history of neurological or psychiatric disorders.
I
Intervention
Neurostellar's wearable device (consumer-grade EEG/PPG wearable headband)
C
Comparator
Laboratory-standard portable EEG/ECG device (xAMP-L10, Axxonet, India)
O
Outcome
Correlation of EEG and HRV features between the wearable device and the laboratory-standard devicesurrogate

Main Result

Effect estimate: z=13.08-13.11 (Random Forest)

p-value: p=<0.001

A consumer-grade EEG/PPG wearable headband can effectively capture psychophysiological changes and track mental states in naturalistic environments.

Limitations

  • Modest sample size
  • Restricted demographic diversity
  • modest sample size
  • restricted demographic diversity

Cite This Study

Marigowda et al. (2025) conducted an observational in Healthy adults (n=15). Neurostellar's wearable device vs. Laboratory-standard portable EEG/ECG device was evaluated on Classification of cognitive and affective tasks using advanced multimodal features (z=13.08-13.11 (Random Forest), p=<0.001). Neurostellar's wearable device, employing advanced multimodal features, significantly classified all cognitive and affective tasks (Random Forest: z=13.08-13.11, p<0.001) versus chance.

synapsesocial.com/papers/6a1575aa79ff98d0de4ea96ahttps://doi.org/10.32388/hdmeq5
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