Skip to content
Get in touch

Research › TBI & Concussion

EEG discriminant analyses of mild head trauma

Share

Suggested message

Check out this Knowledge Base article from StressTherapy Solutions: EEG discriminant analyses of mild head trauma.

Facebook LinkedIn Email

Facebook doesn't let websites fill in your post. Use Copy message, then paste it in.

Study at a glance

Area
TBI & Concussion
Study type
Controlled study
Authors
Thatcher RW, Walker RA, Gerson I, Geisler FH
Journal
Electroencephalography and Clinical Neurophysiology
Year
1989
Participants
608 mild head trauma patients and 108 age-matched controls
Protocol
EEG power spectral discriminant analysis

Key findings

  • The training set (264 patients, 83 controls) classified 94.8% correctly
  • First cross-validation: 96.2% of patients and 90.5% of controls classified correctly; second: 77.8% to 92.3%
  • At a different site with a different EEG system, accuracy was 92.8% in 70 patients
  • Key markers: higher frontal and frontal-temporal coherence with lower phase, smaller front-back power differences, and less posterior alpha

DOI 10.1016/0013-4694(89)90188-0 → PubMed 2473888 →

This study asked whether EEG power spectral measures can tell people with mild head injury apart from uninjured people. A discriminant function built on one group of patients and controls was then checked in three independent groups, including one recorded at a different site on a different EEG system. Classification accuracy stayed high across these checks, and the discriminating measures pointed to three kinds of brain changes the authors attribute to mechanical head injury.