Recent Research Findings

Neuroscientist Says Humans Are Wired for Free Will

Dartmouth’s Peter Tse ’84, an associate professor of psychological and brain sciences, says he has identified a neurological basis for free will in the human brain, challenging a majority opinion that has dominated neuroscience for the last 40 years.

Measurements of human brain signals on the level of neurons and synapses have long shown that acts of will are preceded by a buildup of neural activity in the brain. These signals can begin up to seconds before a person is consciously aware of the exercise of volition, according to the weight of data, Tse explains.

Until now, neuroscientists have argued that because this buildup of signals comes before a person acts, or is even conscious of having decided to act, free will cannot exist, because it would require that a thought causes itself to exist before it exists.

“How can something cause its own physical basis? It is this ‘you can’t pick yourself up by your own bootstraps’ idea that has been the main argument against the possibility of free will,” Tse says.

How Music and Movement Communicate Emotion

Joe Blumberg

Music and movement reflect the rhythm of life, stirring human emotions in societies around the world. Even infants display signs of the interconnectedness of music and movement as they bounce up and down to musical rhythms. Music and movement might be characterized as two sides of the same coin—the coin being emotion.

Gaining an understanding of the connections between these behavioral expressions is a quest Dartmouth researchers have undertaken. The research team in Cambodia included (from left) Thalia Wheatley, Stanford graduate student Trent Walker (Khmer translator), Yam Pan (the commune village chief and translator from Khmer to Kreung—the tribal language), and Dartmouth graduate students Beau Sievers and Carolyn Parkinson. (Photo courtesy of Thalia Wheatley)