Supports· moderateVASO-E002
Mental arithmetic selectively raises trigger-point activity
- what the source states
- With needle electrodes in trapezius trigger points and adjacent control sites, a psychological stressor (mental arithmetic) increased EMG activity at the trigger points while control sites in the same muscle remained comparatively quiet, without generalized muscle tensing.
- what we infer
- A purely mental event, involving no movement, turned up the signal inside one tender point and not a centimeter away: the write half of any storage account, caught in motion.
- limitations
- n=14, 1994, same lineage as Hubbard & Berkoff — the two EMG studies are one line of evidence.
- The essay's follow-up claims (relaxation training lowering activity; phentolamine infusion quieting the site) come from the same lineage and were not independently verified in this project — no primary citation located.
- No vascular endpoint was measured; sympathetic drive to spindles or endplates fits the data without any vascular storage.