COGSCI 111 Jan28Lecture - Brain evolution: Why is our brain...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
Brain evolution: Why is our brain so big?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 2
Human genome Fascinating behavior and mental life; human intelligence
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
How does this… Become this? Become this… ? ?
Background image of page 4
The perceived difficulties Genome too small Only about 20,000+ structural gene parts ( genes coding proteins )
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The perceived difficulties Genome too small Only about 20,000+ structural gene parts Simple genetic determinism clearly wrong
Background image of page 6
The perceived difficulties Genome too small Only about 20,000+ structural gene parts Simple genetic determinism clearly wrong DNA alone can’t explain individuality (as in identical twins)
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The perceived difficulties Genome too small Only about 20,000+ structural gene parts Simple genetic determinism clearly wrong DNA alone can’t explain individuality (as in identical twins) Brains cannot be built by genes alone, because the genetic instructions within all cells are the same
Background image of page 8
Solutions The brain itself is very complex Some billions of cells ( neurons, glia , etc.) (Ward p. 17) Half a million miles of nerve fibers Trillions of “plastic” synapses between those cells
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/25/2008 for the course COGST 1110 taught by Professor Adkinsregan,e&ho during the Spring '08 term at Cornell University (Engineering School).

Page1 / 36

COGSCI 111 Jan28Lecture - Brain evolution: Why is our brain...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online