Hormones and Nervous System Development

Insect Hormonal System: Some pesticides work by interfering with hormonal systems, causing either accelerated or delayed development.

Early Embryology of Sexual Development is under the control of testosterone

The Corpus Callosum

Presumptive male	Presumptive female

Fetal Alcohol Syndrome (FAS) Note very small corpus callosum.

Hypothalamus- Differences in Neuron Density and other male-female differences

1. Standard Deviations of Male and Female IQ  

2. Male and Female IQ

3. Harvard University President's remarks at NBER conference RE: Women in Science and Engineering

4. More on the Harvard remarks is HERE

More Readings on Hormones in the Environment

• Environmental Estrogens Consequences.
• More frog troubles: Herbicides may Emasculate Wild Males
• Source of Chemicals that Feminize Lake Mead Fish Discovered
• The Gender Benders (Alligators)
• Alligator Dicks
• Mandelson's Birds Face Hormone Disruption Threat
• Polar bears See also Contaminants in Polar Bears
• The Demise of Human Sperm
• "Where Have all the Boys Gone?" Read about the decline in male births.
• Gay Brothers and Genetics