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JUMPn: A Streamlined Application for Protein Co-Expression Clustering and Network Analysis in Proteomics

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Evolution of genetic networks for human creativity.

I Zwir^1,2, C Del-Val², M Hintsanen³

¹Department of Psychiatry, Washington University School of Medicine, St. Louis, MO, USA.

Molecular Psychiatry

|April 21, 2021

Summary

Modern humans possess over 200 unique genes, primarily non-coding, linked to creativity and self-awareness, distinguishing us from Neanderthals and chimpanzees. These genetic innovations may explain unique human traits like advanced cognition and longevity.

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Area of Science:

Human Evolution
Genomics
Neuroscience

Background:

The genetic underpinnings of modern human creativity and complex cognitive abilities remain largely unknown.
Comparative genomics with Neanderthals and chimpanzees offers insights into human-specific genetic traits.

Purpose of the Study:

To identify genes unique to modern humans and compare their presence and expression in Neanderthals and chimpanzees.
To investigate the role of these unique genes in human adaptability, personality systems, and cognitive functions.

Main Methods:

Comparative genomic analysis of modern human, Neanderthal, and chimpanzee genomes.
Identification and characterization of gene networks associated with emotional reactivity, self-control, and self-awareness.
Analysis of gene expression in brain regions linked to human-specific cognitive functions.

Main Results:

Neanderthals exhibited gene profiles for emotional reactivity similar to chimpanzees, and intermediate levels for self-control and self-awareness.
Modern humans possess over 200 unique genes, 95% non-coding (including long non-coding RNAs), associated with self-awareness.
These unique genes are over-expressed in neocortical regions crucial for self-awareness, creativity, and autobiographical memory.

Conclusions:

Modern humans have evolved unique non-protein-coding genes that regulate complex gene networks, enabling advanced capacities for self-awareness, creativity, prosocial behavior, and longevity.
These genetic differences highlight a key divergence between modern humans and archaic hominins, contributing to unique human cognitive and behavioral traits.