Biological Sciences

Greater social reward signal in the brain associated with trust

Trust in a friend is associated with a heightened sense of reward from the interaction. (Source: Wikimedia Commons, Credit: Venpia)

According to a study conducted by Professor Luke Chang at Dartmouth College, people find their interactions with close friends more rewarding than interactions with strangers. This holds true even if their chances of being rewarded by either interaction is the same, implying a role of prior trust in establishing such...


Changes in eyes related to development of schizophrenia

A myriad of visual problems based in the eyes may contribute to the symptoms and development of schizophrenia. (Source: Wikimedia Commons)

Two researchers from the New York Eye and Ear Infirmary of Mount Sinai and Rutgers University have found that changes in the structure of the eyes are associated with schizophrenia. Such changes provide another means to understand the disorder beyond changes in the brain (1). However, as the retina is...


Age-related metabolic stress degrades our immune systems: Preventable with antioxidants

The body’s ability to create new T-cells decreases with age. (Source: Wikimedia Commons, Credit: NIAID)

For a long time, there has been a suspected connection between normal immune function and antioxidants, according to The Scripps Research Institute (TSRI) Professor Petrie (1). A new study by the Florida campus of TSRI has finally discovered the mechanism underlying the age-related degradation of the immune system and how...


Stanford engineers improve the precision of brain-controlled prostheses

Modern electrical engineers and neuroscientists join forces to develop brain-computer interfaces that improve the lives of patients with neurodegenerative diseases. (Source: Wikimedia Commons)

Whenever we perform a complex motion, our brain and muscles work together effortlessly to execute the desired movements with accuracy and precision. However, patients with spinal cord injuries or neurodegenerative diseases can no longer perform these once-easy tasks because the connections between their brain and muscles are damaged. To improve...


High levels of CO2 threaten oceans

A power plant releasing CO2 and other green house gases into the atmosphere. Source: FreeFoto, Credit: Ian Britton

                            The oceans, Earth’s great bodies of water, help keep the climate stable by stopping dramatic temperature changes with their ability to slowly absorb and release heat. They also provide a home to millions of marine ecosystems. However, lately, this...


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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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