First language wires brain for later language-learning

Denise Klein
Denise Klein
Research also demonstrates brain’s plasticity and ability to adapt to new language environments

You may believe that you have forgotten the Chinese you spoke as a child, but your brain hasn’t. Moreover, that “forgotten” first language may well influence what goes on in your brain when you speak English or French today.

In a paper published today in Nature Communications, researchers from McGill University and the Montreal Neurological Institute describe their discovery that even brief, early exposure to a language influences how the brain processes sounds from a second language later in life. Even when the first language learned is no longer spoken. Continue reading

Light therapy effective for depression: UBC study

Raymond Lam
Raymond Lam
New research finds that light therapy can treat non-seasonal depression and improve the overall wellbeing of people suffering from the disease.

“These results are very exciting because light therapy is inexpensive, easy to access and use, and comes with few side effects,” said Dr. Raymond Lam, a UBC professor and psychiatrist at the Djavad Mowafaghian Centre for Brain Health, a partnership between UBC and Vancouver Coastal Health. “Patients can easily use light therapy along with other treatments such as antidepressants and psychotherapy.” Continue reading

New Hope for the Treatment of Multiple Sclerosis

Amit Bar-Or
Amit Bar-Or

A new study led by researchers at the Montreal Neurological Institute and Hospital of McGill University and the MUHC, gets closer to identifying the mechanisms responsible for multiple sclerosis and makes headway in the search for better treatments.

Modern scientific understanding has considered multiple sclerosis (MS) to be a disease controlled by the T cell, a type of white blood cell. Research has shown that in MS, T cells inappropriately attack myelin, the protective layer of fat covering nerves in the central nervous system, exposing them to damage. Continue reading

What’s behind your thirst?

Cristian Zaelzer
Cristian Zaelzer
Discovery advances our understanding of how our brain controls body hydration and temperature
Scientists at the Research Institute of the McGill University Health Centre (RI-MUHC) and Duke University have made a breakthrough that advances our understanding of how the brain detects and prevents dehydration.
They have identified the structure of a key protein located in the brain, which is involved in body hydration and that could control temperature. Continue reading

High energy consumption may explain death of cells in Parkinson’s disease

Louis-Eric Trudeau
Louis-Eric Trudeau

New research conducted in the laboratory of Louis-Éric Trudeau at the Université de Montréal helps explain why some neurons in the brain are specifically affected and die in Parkinson’s disease. His team found that the death of neurons affected by Parkinson’s, including some found in regions called the substantia nigra (literally “the black substance”), the locus ceruleus and the dorsal nucleus of the vagus nerve, may be caused by a form of cellular energy crisis in neurons that require unusually high quantities of energy to carry out their job of regulating movement. Continue reading

Abnormal fat build-up in the brain accelerates Alzheimer’s disease

Karl Fernandes
Karl Fernandes

A new study by Karl Fernandes, a researcher at the CRCHUM and a professor at Université de Montréal linking abnormal fast deposits in the brain and the development of Alzheimer’s disease.   “We found fatty acid deposits in the brain of patients who died from the disease and in mice that were genetically modified to develop Alzheimer’s disease. Our experiments suggest that these abnormal fat deposits could be a trigger for the disease”, said Karl Fernandes. Continue reading

The effects of cannabis on the male teenage brain

Tomas Paus
Tomas Paus

“Our study shows the importance of understanding environmental influences on the developing brain in early life” says Dr Tomas Paus, of the University of Toronto’s department of psychiatry. “Given the solid epidemiologic evidence supporting a link between cannabis exposure during adolescence and schizophrenia, we investigated whether the use of cannabis during early adolescence (by 16 years of age) is associated with variations in brain maturation as a function of genetic risk for schizophrenia,”  Continue reading

Study sheds light on the causes of cerebral palsy

Maryam Oskoui
Maryam Oskoui

Cerebral palsy (CP) is the most common cause of physical disability in children. Every year 140 children are diagnosed with cerebral palsy in Quebec.

It has historically been considered to be caused by factors such as birth asphyxia, stroke and infections in the developing brain of babies. In a new game-changing Canadian study, a research team from The Hospital for Sick Children (SickKids) and the Research Institute of the McGill University Health Centre (RI-MUHC) has uncovered strong evidence for genetic causes of cerebral palsy that turns experts’ understanding of the condition on its head. Continue reading

Brief postnatal blindness triggers long-lasting reorganization in the brain

Olivier Collignon
Olivier Collignon

A brief period of postnatal visual deprivation, when early in life, drives a rewiring of the brain areas involved in visual processing, even if the visual restoration is completed well before the baby reaches one year of age, researchers at the University of Trento, McMaster University, and the University of Montreal revealed today in Current Biology. Continue reading