This neural evaluation of environmental risk occurs continuously on a subconscious level without cognitive involvement – primarily in the brain stem and limbic system while gauging the trustworthiness of people and their movements seems to occur in the temporal lobe (read Subliminal).
Depending on the level of threat perceived 3 things can happen:
1) one engages with the environment in a healthy, proactive, and curious way
2) one disengages via antisocial, aggressive behavior that is quite reflexive (basically like the people who go to Wal-mart late at nite) or;
3) freezing/immobilization occur from an inability to cope with severe stressors – think fainting.
Engagement (predominantly a parasympathetic function) occurs when the threat is minimal; the cortex actively inhibits the mobilization response. Two things occur when the perceived risk is minimal: 1) regulation of bodily state is maintained thru the myelinated vagus nerve and the stress response on visceral organs is muted. 2) social behaviors (especially thru the cranial nerves) are facilitated including vocal intonations, listening, facial expressions, and orientation of the head and neck*. The client can listen and engage in your coaching and the learning/treatment process because they are accessing higher brain states, specifically the prefrontal cortex.
On the flipside, disengagement (sympathetic fight or flight mode) occurs based on the perceived risk of the sensory inputs from the environment. In this situation, the cortex becomes inhibited and the brainstem/limbic system takes over. This explains why so many people under stress (including, but definitely not limited to, those in pain) are unable to stay connected – in relationships, in their performance, and definitely during a treatment or training session. Rather than living in their cortex, they are reflexively relying on lower brain regions and looking to literally get the hell outta there or completely shut down. It could be reasoned, then, that those who have a mismatch between perceived risk and actual risk – of a movement, the environment, sensory input – are unable to self-regulate. These are the people we struggle with clinically. The “difficult” client who can’t perform the movements, forget what you showed them, and can never relax. This person likely has minimal HRV and is quite rigid neurologically.
Hierarchy of Needs
Neuroception is evolutionarily important in determining the safety of the environment for survival – without it our species would have stayed in the caves. However a mismatch in actual vs perceived threat alters the ability to maintain physiologic and behavioral homeostasis. And without the ability to regulate our basic needs, engagement with the environment thru sensorimotor processing is limited. This is why peripheral vision is decreased during stress (they literally have tunnel vision) and it’s probably why movement suffers because if you can’t perceive sensations accurately you don’t make good motor plans.
We rightfully and nobly want people to achieve their full potential yet we as clinicians or coaches say/do the following and light up their brainstem (and inhibit the PFC) with threats like:
- Using damaging pathoanatomic phrases like blown out disk, ruptured ACL, unstable shoulder (the list goes on)
- Giving them inconsistent facial expressions
- Lack vocal intonation
- Making too much or too little eye contact
- Assuming a dominant position
- Playing loud or distracting music in the clinic/gym
- Having a poor warm-up or inadequate ramping up of the nervous system
- Aggressive stretching or painful manual therapy (a personal peeve of mine for so many reasons)
- Not to mention all the contextual and preconceived notions the client brings in with them…
Without an appreciation for how each of these variables can be perceived as threatening to a specific individual, especially to those with neuroceptive errors such as those with chronic pain, anxiety, or depression, we are not helping them reach the output variables desired. Instead we are anchoring them to the bottom of the hierarchy and constantly forcing them to attend to basic needs. The human is an ecosystem and, thankfully, we effect all parts of it – so you better recognize!
The constant subconscious filtering of the environment can be optimized by nonthreatening stimuli** which are unique to each individual based on a number of factors and will elicit prosocial behaviors. Ultimately it is the connection – physical, emotional, social – that drives us up the hierarchy and allows for self-regulation and performance. The ability to establish a relationship and meet the client where they are in order to take them where they need to go is not only important on a behavioral level – it is crucial for the client’s physiology. As Todd Stull, MD says, “regulators of physiology are embedded in relationships”.
More on the relationship of neural tone and autonomics next time.
*I find it interesting that the inability to orient the head to perceive sensory information from the environment may set up a negative cascade of cervicomandibular rigidity causing further neuroception because if sensory input is narrow and not easily perceived, it likely is more frightening – like walking in a dark room.
**For more on how to improve nonverbal communication check out my guy Zac Cupples’ excellent post.