Questions

Why infants babble

Why infants babble

Infants typically engage in repetitive babbling of consonants and vowels, such as “ba-ba,” at seven or eight months of age. However, infants with profound hearing loss do not typically vocalize such sounds until they receive cochlear implants. According to Mary Fagan, an assistant professor at the University of Missouri, infants’...

 
 

New Study Reveals: “Why Wet Feels Wet”

While many take the ability to feel "wetness" for granted, the exact mechanism by which humans feel moisture remains a mystery.

Whether it’s the sticky, sweaty feeling of a humid day, or the feeling of stepping in puddle on a cold day, the sensation of wetness is very distinct. On October 1st, the Journal of Neurophysiology released an article that examined how animals detect wetness.  Until now, the underlying process was...

 
 

Is Altruism Innate?

Is Altruism Innate?

John Locke, famed 17th century English philosopher, proposed that babies were born as blank slates, “tabula rasas.” Ever since, society has assumed that babies are born without knowledge, that all mental content is acquired through experience and perception. However, scientists at Yale University’s Infant Cognition Center are conducting research that...

 
 

Why Don’t We Help?

Why Don’t We Help?

If a man were dying on the street, would you help him or just walk by? Most of us would like to think we would help, but unfortunately this is not usually the case. According to a social psychological phenomenon known as the bystander effect, people do not intervene in...

 
 

Why Do We Sleep?

Why Do We Sleep?

An average human sleeps for a third of his or her life (1). Other animals can display great variation in their time spent sleeping, ranging from the koala (up to 22 hours) to the giraffe (as little as 1.5 hours) (1). Numerous studies affirm the importance of sleep to health...

 
 
 
 
 

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Founded in 1998, the Dartmouth Undergraduate Journal of Science aims to increase scientific awareness within the Dartmouth community by providing an interdisciplinary forum for sharing undergraduate research and enriching scientific knowledge.

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