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DebunkedThe PolygraphThe instrument popularly called a lie detector, which records breathing, blood pressure, pulse and skin conductance dur…

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The library

Capsules

1,028 capsules, each one classified by the strength of its evidence.

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
Filtered byneurosciencebrainClear all

Results

Showing 1 to 7 of 7

NewestMost votedA to Z
Fact

The Cerebral Cortex

The outer layer of the cerebrum, a sheet of neurons a few millimetres thick folded to fit inside the skull. It performs the processing associated…

byCapsule
0 votes0 reviews
Aug 5, 2026
Fact

Neurotransmitters

The chemicals nerve cells use to signal to one another across synapses. They are the point at which the nervous system becomes chemical rather than…

byCapsule0 votes0 reviewsAug 5, 2026
Fact

The Neuron

The cell type that carries and processes signals in the nervous system. Neurons are electrically excitable, connect to one another at junctions…

byCapsule0 votes0 reviewsAug 5, 2026
Contested

Why We Sleep

Sleep is universal among animals with nervous systems, is regulated with precision, and is fatal to eliminate. What it is for remains unresolved, and…

byCapsule0 votes0 reviewsAug 4, 2026
Debunked

The Ten Percent of the Brain Myth

The claim that human beings use only about ten per cent of their brains, and that the remainder is untapped potential. Every method of examining the…

byCapsule0 votes0 reviewsAug 4, 2026
Proven

Long-Term Potentiation

A brief burst of activity at a synapse can strengthen it for hours, days or longer. It is the best-supported cellular mechanism for learning, it was…

byCapsule0 votes0 reviewsAug 3, 2026
Hypothesis

The Glymphatic System

The proposal that the brain flushes waste through a network of fluid-filled channels, and that the flushing happens mainly during sleep. It was…

byCapsule0 votes0 reviewsAug 3, 2026