MIT researchers have found that nitrous oxide or laughing gas is a stronger anesthetic than previously believed, writes Nitya Rajan for The Huffington Post. The researchers found that nitrous oxide caused changes in patient brainwaves and a pattern of electrical firing across the brain.
New research by Prof. Susumu Tonegawa presents the possibility that depression can be alleviated by recalling happy memories, reports Clive Cookson for The Financial Times. The findings suggest, "new ways to treat depression by manipulating memory neurons.”
MIT researchers were able to reverse depression-like behavior by reactivating happy memories, writes Carolyn Gregorie for The Huffington Post. Graduate student and lead author Steve Ramirez “hopes that scientists will one day find a way to prevent depressive symptoms from occurring in the first place.”
Professor Susumu Tonegawa’s research group has found that artificially stimulating positive memories can ease depression, reports Jonathan Webb for BBC News. Webb explains that the research “demonstrates the power of rekindling happy memories.”
Prof. Ki Goosens is investigating how the gherlin hormone could possibly be used to develop a vaccine for PTSD, reports Bree Sison for CBS Boston. “If we can pick even just one mental illness and improve the outcome for people who suffer from it, I’d be happy,” says Goosens.
Jessica Hamzelou writes for New Scientist that MIT researchers have been able to recover memories using light. The technique could eventually be used to help people with Alzheimer’s or amnesia. Hamzelou writes that Prof. Susumu Tonegawa, hopes to “develop a way to reactivate forgotten memories in people before the brain tissue itself is damaged, as is often the case in dementia.”
Washington Post reporter Rachel Feltman writes that MIT researchers have used optogenetics to reactive lost memories. The research indicates that, “retrograde amnesia -- where memories are lost after brain trauma -- may be more of a memory retrieval problem than an actual loss of data.”
According to AFP, MIT researchers were able to use a technology called optogenetics to retrieve lost memories. Professor Susumu Tonegawa explains that the research showed, “past memories may not be erased, but could simply be lost and inaccessible for recall."
Graduate student Dheeraj Roy speaks with Rachel Paiste of WBUR about a new study that indicates that memories lost to amnesia may be recalled by activating brain cells with light. Roy explains that the findings show that “in certain models of amnesia, memories do persist.”
“MIT scientists have cracked the science behind the dress that went viral on the Internet after some saw it as black and blue while others perceived it to be gold and white,” The Huffington Post reports. The researchers found that a person’s visual perception was influenced by light sources.
Guardian reporter Ian Sample writes about research by Bevil Conway, a principal research scientist at MIT, examining why people had different opinions about the color of a dress. Conway found that “our brains devise strategies for working out the true colours of objects in different situations. But because we have different experiences, our brain models differ too.”
Alison Gopnik of The Wall Street Journal writes that new research by Professor John Gabrieli indicates that poverty can have a negative impact on brain development in children. The researchers found that “low-income children had developed thinner cortices than the high-income children.”
Ami Albernaz reports for The Boston Globe on a new study co-authored by Prof. John Gabrieli that finds that income disparity affects brain development in children. “The findings add a biological perspective on what it means to come from a lower socioeconomic background,” says Gabrieli.
Nidhi Subbaraman of BetaBoston writes that Prof. Feng Zhang has been awarded $1 million from the Paul G. Allen Family Foundation to study brain cells. The grant will fund a project that will use the gene-editing technique CRISPR to “find ways to streamline or speed up [neuron cell] growth by turning genes on and off.”
To help give her students a better understanding of the brain, Prof. Nancy Kanwisher shaved her head and had a student draw the different regions of the brain on her head, reports Melissa Malamut for Boston Magazine. Kanwisher explains that she saw her technique as a way to “discover basic components of the human mind.”