How to Expand Your Consciousness | Dr. Christof Koch

KEYPOINTS

• 01

  Consciousness is simply experience

  Koch, of the Allen Institute and the Tiny Blue Dot Foundation, defines consciousness as the fact that you see, hear, love, dread and dream, not your ability to respond. In early-night deep non-REM sleep or under anesthesia, 'you do not exist for yourself'. Dreams, by contrast, are conscious experiences.

• 02

  Self-consciousness is only one part of consciousness

  People confuse consciousness with having a sense of self. In flow, as when Alex Honnold climbs, in meditation or on psychedelics, the inner critic can go quiet while awareness stays high. Koch calls this 'blessed silence'.

• 03

  Consciousness is about being, not doing

  You can be highly conscious while motionless, in meditation, dreams or mystical states, and much behavior is unconscious. Koch argues this is why intelligence and consciousness are separate: computers may match everything we do without being anything.

• 04

  Koch says the circuits linking cortex and thalamus generate experience

  A beating heart and an active brainstem are enabling conditions, since without blood flow you lose consciousness within about 8–10 seconds. But Koch says the content of experience comes from the circuits linking the cortex and thalamus, and work at the Allen Institute manipulating these circuits supports this.

• 05

  A 'zap and listen' test can measure consciousness

  Researchers stimulate the brain with transcranial magnetic stimulation and record the echo with high-density EEG to compute a perturbational complexity index (PCI) from 0 to 1. Waking, dreaming and ketamine dissociation score high, while deep sleep, anesthesia and brain death score low. Across about 300 people, a sharp threshold of about 0.31 separated conscious from unconscious.

• 06

  About a quarter of 'unresponsive' patients are covertly conscious

  A large New England Journal of Medicine study found that about 25% of behaviorally unresponsive patients could voluntarily modulate motor-cortex activity on command ('clench your fist for 30 seconds'). Families often decide to withdraw care within days, so Koch founded a company, Intrinsic Powers, to bring testing into the ICU. The FDA has asked for a clinical trial, and his pilot data suggest covertly conscious patients recover more often.

• 07

  We live inside a personal 'perception box'

  Borrowing the term from Elizabeth Koch, he describes everyone's reality as built from Bayesian priors: expectations about the world, other people and oneself. #TheDress (white-gold versus blue-black, possibly linked to whether people are morning or evening types) is the harmless version. Opposing readings of 9/11 or October 7 show the same process in politics.

• 08

  Transformative experiences change your priors fast

  Reading and films shift you slowly. Direct, first-person 'acquaintance' with something can rewrite your priors in minutes, and the deliberate reworking afterwards is what psychedelic therapy calls integration.

• 09

  You have to believe you can change

  Koch believes the mind stays changeable at almost any age. If you're told your condition is hopeless and to 'take this pill and suffer', you won't improve, so seeing yourself as an active agent of your own mind is a precondition for therapy. He credits Alcoholics Anonymous's admission that you can't do it alone, and the community it provides, rather than divine intervention.

• 10

  Belief drives treatment effects

  Koch cites a study by Stanford's Boris Heifets: depressed patients having surgery got either ketamine or none under full anesthesia. Both groups improved similarly, and recovery tracked how strongly patients believed they'd received ketamine, which is why Koch says cynicism undermines therapy.