Home | Search Serendip
Serendip

Home Page

Compare Brains

Compare Brain and Body Sizes

Compare Brain Structures- Slices and Slides

The Neuron- Up Close and Personal

The Question of Intelligence

Links

Glossary

Bibliography

What if we make all of the bodies the same size?

What do you think will happen?

Here are some possibilities:

  • all the brains would also be the same size
  • there would be no difference in the table before
  • the more "intelligent" animals would have larger brains despite controlling for body size

What is your hypothesis?

Let's think about what we're doing . . . We're essentially "controlling for" body size by making all body sizes the same. In other words, we make all the animals' body sizes equal so that we can see if there are "true" differences in brain sizes. For example, to compare the brains of a dolphin and a squirrel we first need to determine whether a dolphin's brain is simply larger than that of a squirrel because the dolphin's body is overall much larger.

dolphin brain Is a dolphin's brain larger than a squirrel's squirrel brain
dolphin even when we control for body size????? squirrel

I want to make all body sizes the same size and see what happens...

I'd rather make all brain sizes the same...

Why should I care about this kind of comparison??

Huh? Can we start over?




| Forum | Brain and Behavior | Serendip Home |

Send us your comments at Serendip

© by Serendip 1994- - Last Modified: Wednesday, 05-Sep-2012 09:41:28 EDT