@purrsian I recently had a qEEG done for my LTD case. I don't think it's one that's required by the SSA but I think all tests are helpful in building a picture of our impairments for the judge. The good thing about qEEG is that it takes about ten minutes to do the test, and it's very non invasive and not tiring. The test and report cost me €800.
It showed abnormalities in alpha, Beta and Theta activity in a range of brain areas that were two to three deviations from the norm. The neuroscientist said this was highly unusual, he wrote in his report that
" ..there is an extant literature associating elevated theta activity in frontal and pre-frontal brain areas with
difficulties in executive functioning, including processing speed, decision-making, attention, concentration and focus, and aspects of memory, as well as elements of emotional and mood regulation [e.g. 4]. Excess theta activity has also been linked to Chronic Fatigue Syndrome [1]."
He noted that elevated beta and alpha activity is associated with ADD symptoms and impaired functioning too. So, I found all this v useful as a physical test backup to cognitive testing which shows I have these symptoms. These were the referenced published papers he used in his report to back up his findings, which you could show to an eeg provider if you get one done.
1. Billiot, K. M., Budzynski, T. H., & Andrasik, F. (1997). EEG Patterns and
chronic fatigue syndrome. Journal of Neurotherapy, 2(2), 20-30.
2. Clarke, A. R., Barry, R. J., Dupuy, F. E., McCarthy, R., Selikowitz, M. &
Johnstone, S. J. (2013). Excess beta activity in the EEG of children with
attention deficit/hyperactivity disorder: A disorder of arousal? International
Journal of Psychophysiology, 89(3), 314-319.
3. Clarke, A. R., Barry, R. J., McCarthy, R., & Selikowitz, M. (2001). Excess
beta activity in children with attention deficit/hyperactivity disorder: an
atypical electrophysiological group. Psychiatry Research, 103(2-3), 205-218.
4. Hermens, D. F., Soei, E., Clarke, S. D., Kohn, M. R., Gordon, E. & Williams,
L. M. (2005). Resting EEG theta activity predicts cognitive performance in
attention-deficit hyperactivity disorder. Pediatric Neurology, 32, 248-256.
5. Koehler, S., Lauer, P., Schreppel, T., Jacob, C., Heine, M., Boreatti-Hümmer,
A., Fallgatter, A. J. & Herrmann, M. J. (2009). Increased EEG power density
in alpha and theta bands in adult ADHD patients. Journal of Neural
Transmission, 116, 97-104.
6. Thatcher, R. W., Walker, R. A., Biver, C. J., North, D. M., & Curtin, R.
(2003). Quantitative EEG normative databases: Validation and clinical
correlation. Journal of Neurotherapy, 7, 87-121.