Related Experiment Video
Updated: Aug 5, 2026
10:19
Induction of an Isoelectric Brain State to Investigate the Impact of Endogenous Synaptic Activity on Neuronal Excitability In Vivo
Published on: March 31, 2016
On the Functional Significance of Quantum Effects at Subneuronal Scales
Josh Roeloffs1, Jack A Tuszynski2
1Independent Researcher, Los Angeles, CA, USA.
Bio Systems
|July 31, 2026
Summary
This study suggests the brain uses quantum effects at the microtubule scale. Anesthetics disrupt these quantum processes, impacting consciousness and neural function.
Area of Science:
- Quantum physics
- Neuroscience
- Biophysics
Background:
- De Broglie's relation indicates quantum effects at nanometer scales.
- Biological systems may utilize quantum mechanics for function.
- Microtubules exhibit quantum phenomena like energy migration and superradiance.
Purpose of the Study:
- To test the hypothesis that the brain operates with quantum effects at the microtubule scale.
- To investigate the role of microtubule quantum dynamics in higher-order neural function and consciousness.
Main Methods:
- Developing a constraint-based hypothesis from physics and experimental data.
- Analyzing pharmacological effects of anesthetics and psychedelics on microtubule function.
- Cross-species comparisons of anesthetic effects on responsiveness.
Main Results:
- Anesthetics reduce microtubule energy migration and disrupt collective tubulin oscillations.
- Anesthetic potency correlates strongly with changes in tubulin dynamics (R² = 0.999).
- Microtubule-stabilizing drugs delay anesthetic-induced unconsciousness.
Conclusions:
- Microtubule tryptophan networks and collective tubulin dynamics are implicated in higher-order neural function.
- Quantum processes within microtubules may be essential for maintaining conscious states.
- Pharmacological evidence supports the functional relevance of microtubule quantum dynamics in the brain.
Related Concept Videos
01:28Neuronal Communication
Neurons, the fundamental units of the brain and nervous system, communicate through complex electrochemical signals that underpin all cognitive and bodily functions. This communication is primarily facilitated by a process involving the generation and propagation of an action potential along the axon of the neuron. When the internal electrical charge of a neuron surpasses a certain threshold, an action potential is triggered. This rapid change in voltage travels swiftly along the axon to the...
01:14Action Potential
Neurons communicate by firing action potentials—the electrochemical signal that is propagated along the axon. The signal results in the release of neurotransmitters at axon terminals, thereby transmitting information to the nervous system. An action potential is a specific "all-or-none" change in membrane potential that results in a rapid spike in voltage.
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...
Membrane potential in neurons
Neurons typically have a resting membrane potential of about -70 millivolts (mV). When they receive...
01:19The Role of Ion Channels in Neuronal Computation
A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential.