Skip to content

Social Interactions Can Alter Gene Expression In Brain, And Vice Versa

November 8, 2008
A critical insight came in 1992, in a study of songbirds led by David Clayton. He and his colleagues found that expression of a specific gene increases in the forebrain of a zebra finch or canary just after it hears a new song from a male of the same species. This gene, egr1, codes for a protein that itself regulates the expression of other genes.
clipped from www.sciencedaily.com

Our DNA determines a lot about who we are and how we play with others, but recent studies of social animals (birds and bees, among others) show that the interaction between genes and behavior is more of a two-way street than most of us realize.
Genes in the brain are malleable, turning on or off in response to internal and external cues. While genetic variation influences brain function and social behavior, the authors write, social information also alters gene expression in the brain to influence behavior.
Thanks to the newly sequenced genomes of several social animals, including honey bees and zebra finches, and new technologies such as microarrays (which allow researchers to glimpse the activity of thousands of genes at a time) neuroscientists are gradually coming to understand that “there is a dynamic relationship between genes and behavior,”
“Behavior is not etched in the DNA.”
2 Comments leave one →
  1. Alexwebmaster permalink
    March 3, 2009 4:41 pm

    Hello webmaster
    I would like to share with you a link to your site
    write me here preonrelt@mail.ru

  2. Setebluedge permalink
    March 8, 2009 6:53 am

    продам Форд-Фокус 2008 года за 200 тр. торг возможет. срочно!!!
    +7 960 200 9209

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: