Heritability of Working in a Creative Profession.

Area of Science:

• Behavioral Genetics
• Psychology
• Human Heritability Studies

Background:

• Creativity, defined as the generation of novel ideas and possibilities, has been explored for its genetic underpinnings.
• Previous research utilized polygenic score analysis to investigate the genetic contribution to creative professions.
• Understanding the heritability of creativity is crucial for fields ranging from psychology to talent identification.

Purpose of the Study:

• To quantify the total heritability of working in a creative profession.
• To analyze genetic and environmental contributions to creativity using a large twin and sibling cohort.
• To identify the best-fitting genetic model for the trait of engaging in a creative occupation.

Main Methods:

• Analysis of data from 6755 twins and 1817 siblings from the Netherlands Twin Register.
• Application of genetic structural equation modeling to twin and sibling data.
• Examination of twin correlations (MZ: 0.68, DZ: 0.40) to infer genetic and environmental influences.

Main Results:

• Working in a creative profession was observed in a small proportion of the sample (2.6% twins, 3.2% siblings).
• Initial modeling suggested significant contributions from additive genetic factors (0.56), shared environment (0.12), and unique environment (0.32).
• The best-fitting model indicated a heritability estimate of 0.70, primarily driven by additive genetic factors and unique environmental influences.

Conclusions:

• Working in a creative profession demonstrates substantial heritability, estimated at 70%.
• The findings highlight the significant role of additive genetic factors in creative occupations.
• Unique environmental factors also play a considerable role, suggesting gene-environment interplay in creativity.