Greetings Earthlings! 🙂
Leading on from my previous post about autism and anxiety, this week I’d like to talk about the phenomenon of brain zaps which autists may experience.
So what exactly are brain zaps?
Brain zaps (also know as brain shakes/shocks/shivers/flips) are a poorly understood phenomenon where it feels as though the brain is undergoing an electrical shock or a shaking/shivering/vibrating sensation. I personally have experienced these from time to time as a vibrating sensation in my brain, where it feels like your brain is literally shaking in your skull. Others report that it feels like a zap has gone off in their head and they can hear a hissing or a ringing sound in their ears. In some cases people experience bursts of light and can feel faint and disorientated afterwards. They are not harmful to the brain but they can be distracting and uncomfortable, especially for autists who are already sensitive to sensory stimuli.
So what causes them?
Like many neurological sensations, they are somewhat of a mystery, but they generally tend to occur in response to withdrawal or missed doses of certain drugs such as anti-depressants, ecstasy and MDMA, and medications for anxiety and ADHD – many of which are prescribed for co-morbid mental health conditions in autists. As these drugs alter levels of key calming inhibitory neurotransmitters such as serotonin and GABA (levels which are naturally dysregulated in the autistic brain), it is thought that low levels of these neurotransmitters may cause over-excitement in the brain, leading to abnormal firing between the neurons causing localized minor seizures i.e. brain zaps.
Don’t be alarmed by the term seizure here- this theory has not yet been confirmed and there is no evidence that brain zaps have a negative impact on our health.
On the other hand, brain zaps can also occur in response to high stress and anxiety. When you experience chronic stress, the brain is hyperstimulated as your worries swirl round and around in your restless mind. Completely overworked and overexcited from stress, your neurotransmitter levels fluctuate causing lower levels of calming GABA and higher levels of glutamate- the primary excitatory neurotransmitter. Such changes may over-excite the brain resulting in a localised seizure/brain zap as described above. Autists may be particularly susceptible to brain zaps in this manner as we experience higher levels of biological stress than our neurotypical peers, not to mention that our neurons are naturally hyper-connected, our neurotransmitters dysregulated and our brains hyperstimulated as a result.
Interestingly, a recent study has suggested that lateral eye movement may be a triggering factor for brain zaps. This is particularly intriguing for autists as evidence suggests that we process most visual information in our periphery, so our natural inclination to avoid direct eye contact could trigger brain zaps.
There are no treatments for brain zaps, but while they may not be the most pleasant sensation, they are generally nothing to be worried about and can be mitigated with proper management of stress and your prescribed medications.
Hope you enjoyed this post dear Earthlings! 🙂
Have a lovely weekend!