Phase transitions of brain evolution that produced human language and beyond

Area of Science:

• Evolutionary biology
• Neuroscience
• Linguistics

Background:

• Human brain evolution involved significant increases in capacity.
• The emergence of language is a key aspect of human evolution.
• Preadaptations during the animal protolanguage period were crucial.

Purpose of the Study:

• To analyze the evolutionary phase transitions of human brain capacity.
• To identify the mechanisms driving these transitions.
• To predict future evolutionary trajectories of human cognition and language.

Main Methods:

• Analysis of evolutionary phase transitions in brain capacity.
• Identification of preadaptations and evolutionary mechanisms.
• Extrapolation of current trends to predict future transitions.

Main Results:

• Two major phase transitions in brain capacity were identified.
• These transitions were supported by primate cerebral cortex expansion and triadic niche construction.
• These changes exceeded the neural threshold for language emergence.

Conclusions:

• Human language evolved through distinct evolutionary phases.
• Triadic niche construction replaced natural selection as a primary driver.
• Artificial intelligence may induce a third phase transition, leading to a new form of language.