05/14/2026
A study done in 2016 demonstrated that spinal adjustments have a positive affect on the brain via the prefrontal cortex. In this study, subjects with what researchers called “dysfunctional spinal segments” underwent either real chiropractic adjustments or a sham intervention. Using EEG and brain source localization techniques, the researchers found significant changes in prefrontal cortical processing after the chiropractic intervention, including about a 20% change in measured prefrontal activity in some metrics.
The reason this finding mattered is that the prefrontal cortex is involved in functions such as:
proprioception (body position awareness)
movement coordination
attention and decision-making
pain processing
autonomic regulation
muscle activation
For those of you that love reading research studies, here is the link!
Objectives. Studies have shown decreases in N30 somatosensory evoked potential (SEP) peak amplitudes following spinal manipulation (SM) of dysfunctional segments in subclinical pain (SCP) populations. This study sought to verify these findings and ...