Why are some people right (or left) handed?

What determines whether you’re right or left handed? Is there really such a thing as being ambidextrous?

It’s a surprisingly complicated story, and culture comes into play – some people are forced to go against their dominant hand.

Norman and Tegan parse through the history of handedness in this live recording at the World Science Festival Brisbane.

References:

• A large-scale population study of early life factors influencing left-handedness 
• The handedness of Kerrs and Carrs
• The association between switching hand preference and the declining prevalence of left-handedness with age
• Stuttering and “Retraining” Left-Handed Children in Mid-Century U.S. 
• Can training to become ambidextrous improve brain function?  
• Brain Size Associated with Foot Preferences in Australian Parrots 
• The Influence of Handedness on the Clinical Presentation and Neuropsychology of Alzheimer Disease

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