Autoimmune and inflammatory activities in the brain seem to be linked with psychiatric symptoms. Have a look at this article: http://www.npr.org/sections/health-shots/2015/10/25/451169292/could-depression-be-caused-by-an-infection
I even suspect there may be a positive correlation between woo-ism (believing woo experiences must be true/genuine/real phenomena PLUS also displaying a higher disposition towards experiencing such paranormal – and psychic – phenomena).
It’s undeniable that there exists an overlap between mental and physical illness. They have many symptoms in common.
Furthermore, lately researchers have detected a network of vessels that seem to be able to directly connect the brain with the immune system, so it’s not farfetched to assume that neuroinflammatory and/or neurodegenerative diseases are associated with immune system dysfunction.
For details, see: http://www.nature.com/articles/nature14432.epdf?referrer_access_token=M_gEqyTF4woL1TO0pPtt_dRgN0jAjWel9jnR3ZoTv0PP9svrp_06Oir1YyDWe7ejvVLL2VbrH_EwNtYJfrQFs76c429WdrHUa3kC6-ROdf0a_sf0Wq3y-_lXvDuWqqE81teEmgu9jJgiCo644XrZpoQFLHRhQL_oQbZPSnuILCbsmK4rEXRW91jKrI6Im8RIguooFs6WobJt6z2yuX7A2pJD0k4VDG0jAeie6V4PmjIrmox96-6NYWQfQMxCVLxb&tracking_referrer=www.npr.org .
There are also many indications that stressors of any kind, especially in childhood, can activate our immune system. A hyperactive immune system alarm goes hand in hand with autoimmune diseases. And woo believers are known to have more autoimmune disorder diagnoses than non-woo believers.
Examples of such stressors are physical abuse, sexual abuse, feelings of neglect and grief, nutritional deficiencies, sleep deprivation, and much more. A childhood full of stressors like these might pave the ground for woo beliefs later on.
This finding is, in turn, completely compatible with the positive correlation between woo believers and mental disorders like depression, GAD (Generalized Anxiety Disorder), bipolar disorder or schizophrenia. And those diagnoses are, in turn, suspected to be caused, partly, by an infection that has activated the immune-inflammatory system of their bodies.
So it’s easy to imagine that both stressors (like those I just mentioned) and Infections during childhood – maybe already in the womb – might work in concert with genetics to make that individual (already as a fetus) sensitive to not only psychosocial factors but also to become prone to believe in, and experience, paranormal phenomena.
BTW, Here’s a book I can recommend to all those interested in the woo-personality traits: http://www.davidritchey-author.com/hoa.htm .
The author David Ritchey summarizes his findings here: http://www.davidritchey-author.com/hoa-findings.htm . The following six points are listed (especially point #5 is of extra interest here):
1. Various factors including Biology (“nature”), Trauma and Abuse (“nurture”) and Temperament Type Preferences (“personality”) can predispose an individual to be an Anomalously Sensitive Person (ASP).
2. If an individual is anomalously sensitive in one realm (the “Physiological,” for example), s/he is very likely to be anomalously sensitive in the other realms (“Cognitive,” “Emotional,” “Altered States of Consciousness” and “Transpersonal Experiences”) as well.
3. The Anomalously Sensitive Person is likely to: be female, be hypopigmented (blond hair/blue eyes), be Non-Right-Handed (left-handed or ambidextrous), be artists, be born as one of a set of twins/triplets/etc. and have an other-than-conventionally heterosexual sexual orientation.
4. The Anomalously Sensitive Person is likely to: have an Introverted (rather than Extraverted) Orientation, have a preference for an Intuitive (rather than Sensate) mode of Perceiving and have a preference for a Feeling (rather than Thinking) mode of Judging.
5. The Anomalously Sensitive Person is likely to: have unusually sensitive immune systems, be highly reactive/responsive to sensory stimuli, exhibit learning/attention styles that differ from the norm, be very attuned to the emotions of both themselves and others, be especially facile at accessing Altered States of Consciousness and to frequently have Transpersonal (“metaphysical,” “paranormal,” “psychic”) Experiences.
6. The HISS data support the position of those negativists who hold that anomalous sensitivity is indicative of temporo-limbic epilepsy. The HISS data also support the position of those positivists who hold that anomalous sensitivity is indicative of kundalini arousal. The HISS data also support those who have no position and hold that anomalous sensitivity is indicative of anomalous sensitivity.