Brain responses to a lab-evolved artificial language with space-time metaphors

Area of Science:

• Cognitive Neuroscience
• Linguistics
• Evolutionary Psychology

Background:

• Artificial languages developed using space to represent time.
• Universal and idiosyncratic conventions emerged during language evolution.
• Previous studies explored language evolution in iterated communication.

Purpose of the Study:

• Investigate if brain responses during language acquisition reflect the language's evolutionary process.
• Examine neural processing of artificial space-time languages.
• Understand the link between cultural language evolution and individual brain responses.

Main Methods:

• Recorded participants' electroencephalography (EEG) during learning.
• Utilized an artificial space-time language in an iterated communication task.
• Analyzed neural responses to language conventions and their evolution.

Main Results:

• Brain responses to the artificial language were language-like, showing an N400-like component.
• Neural sensitivity to universal conventions developed rapidly.
• Neural sensitivity to idiosyncratic conventions developed slowly, mirroring cultural evolution.

Conclusions:

• The brain's learning process for language conventions parallels the cultural evolution of those conventions.
• Neural biases may influence the emergence of structure in language.
• This research opens avenues for studying neural influences on language learning and transmission.