Barrie Frost, New Zealand-born Canadian psychologist and neuroscientist., dies at age 79

Barrie Frost (79)

New Zealand-born Canadian psychologist and neuroscientist.

Helen Neville, Canadian-born American psychologist and neuroscientist., dies at age 72

Helen Neville (72)

Canadian-born American psychologist and neuroscientist.

Gene Sharp, American political scientist and nonviolence advocate., dies at age 90

Gene Sharp (90)

American political scientist and nonviolence advocate.

John Roder, Canadian immunologist and neuroscientist., dies at age 67

John Roder (67)

Canadian immunologist and neuroscientist.