Behavioral and Neuronal Correlates of Human Mood States

Purpose

Optimizing treatments in mental health requires an easy to obtain, continuous, and objective measure of internal mood. Unfortunately, current standard-of-care clinical scales are sparsely sampled, subject to recency bias, underutilized, and are not validated for acute mood monitoring. The recent shift to remote care also requires novel methods to measure internal mood. Recent advances in computer vision have allowed the accurate quantification of observable speech patterns and facial representations. The continuous and objective nature of these audio-facial behavioral outputs also enable the study of their neural correlates. Here, the investigators hypothesize that video-derived audio-facial behaviors have discrete neural representations in the limbic network and can provide a critical set of reliable longitudinal estimates of mood at low cost across home and clinic settings.

Conditions

  • Major Depressive Disorder
  • Epilepsy

Eligibility

Eligible Ages
Between 18 Years and 65 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Age range between 18 and 65 - Major depressive disorder (MDD) in a current major depressive episode diagnosed with the Mini-International Neuropsychiatric Interview (MINI) - No medical or surgical contraindication to electrode implantation - Patient capable of understanding the scope of our project or signing informed consent independently.

Exclusion Criteria

  • Diffuse epilepsy involving several lobes of the brain

Study Design

Phase
N/A
Study Type
Interventional
Allocation
Randomized
Intervention Model
Crossover Assignment
Primary Purpose
Basic Science
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Active Comparator
Active Direct electrical stimulation (DES)
Intracranial electrodes will be used for the delivery of invasive brain stimulation.
  • Device: Intracranial electrodes
    Surgically-implanted intracranial electrodes.
Sham Comparator
Sham Direct electrical stimulation (DES)
Intracranial electrodes will be used for the delivery of invasive brain stimulation.
  • Device: Intracranial electrodes
    Surgically-implanted intracranial electrodes.

Recruiting Locations

More Details

Status
Recruiting
Sponsor
Stanford University

Study Contact

Jade Truong
(408) 840-3313
kellerlab@stanford.edu