Posts Tagged ‘brain’

Jack Belliveau, Explorer of the Brain Using M.R.I., Dies at 55

September 21, 2018

Anticipating the upcoming #NobelPrize announcements, here’s someone who probably should have won the prize for discovering fMRI had he not
died so young Jack Belliveau, Explorer of the Brain Using MRI, Dies at 55


“Dr. Belliveau was a 30-year-old graduate student at the Martinos Center when he hatched a scheme to “see” the neural trace of brain activity. …

Dr. Belliveau tried a different approach. He had developed a technique to track blood flow, called dynamic susceptibility contrast, using an M.R.I. scanner that took split-second images, faster than was usual at the time. This would become a standard technique for assessing blood perfusion in stroke patients and others, but Dr. Belliveau thought he would try it to spy on a normal brain in the act of thinking or perceiving.

“He went out to RadioShack and bought a strobe light, like you’d see in a disco,” said Dr. Bruce Rosen, director of the Martinos Center and one of Dr. Belliveau’s advisers at the time. “He thought the strobe would help image the visual areas of the brain, where there was a lot of interest.”

The Brain That Couldn’t Remember – The New York Times

March 5, 2018

The #Brain That Couldn’t Remember Fight over the ownership of HM’s highlights issues in consent HT @FearLoathingBTX

Breaking Into The Brain | Chemical & Engineering News

September 22, 2017

Breaking Into the #Brain Contrasts potential for drug discovery in neuro-diseases v #cancer (which is “easier”)

interesting brain v cancer contrast

Chips Off the Old Block: Computers Are Taking Design Cues From Human Brains – The New York Times

September 22, 2017

Computers Are Taking Design Cues From…Brains Bio-inspired computing, or the connection machine redux HT @EricTopol

Evaluation Of Chromatin Accessibility In Prefrontal Cortex Of Schizophrenia Cases And Controls | bioRxiv

July 31, 2017

Eval of Chromatin Accessibility [via #ATACSeq] in DLPFC of SCZ Cases/Ctrls, by @JulienBryois et al. List of cQTLs

A comprehensive transcriptional map of primate brain development

June 19, 2017

A…transcriptional map of primate (macaque) #brain development Gene expression changes more rapidly before birth
Nature (2016) doi:10.1038/nature18637

Mind the gaps: The holes in your brain that make you smart

June 10, 2017

Mind the gaps: The holes in your brain…make you smart Contrasts connectivity from graphs vs large-scale topology

Intersection of diverse neuronal genomes and neuropsychiatric disease: The Brain Somatic Mosaicism Network | Science

May 15, 2017

The #Brain #Somatic Mosaicism Network Long lifespan of neurons accentuates impact of individual somatic mutations

Neuropsychiatric disorders have a complex genetic architecture. Human genetic population-based studies have identified numerous heritable sequence and structural genomic variants associated with
susceptibility to neuropsychiatric disease. However, these germline variants do not fully account for disease risk. During brain development, progenitor cells undergo billions of cell divisions to generate the ~80 billion neurons in the brain. The failure to accurately repair DNA damage arising during replication,
transcription, and cellular metabolism amid this dramatic cellular expansion can lead to somatic mutations. Somatic mutations that alter subsets of neuronal transcriptomes and proteomes can, in turn, affect cell proliferation and survival and lead to neurodevelopmental disorders. The long life span of individual neurons and the direct relationship between neural circuits and behavior suggest that somatic mutations in small populations of neurons can significantly affect individual neurodevelopment. The Brain Somatic Mosaicism Network has been founded to study somatic mosaicism both in neurotypical human brains and in the context of complex neuropsychiatric disorders.” “}}

New Brain Insights from Cochlear Implants » American Scientist

March 5, 2017

#Brain Insights from Cochlear Implants Soundtracks simulating the voice of implant based on 1 sided deaf patients

An additional insight provided by single-sided deaf patients is that they allow us, for the first time, to objectively determine the “voice” of an implant. That’s because these patients can compare how speech sounds through their cochlear implant with what they hear in their normal-hearing ear.”

Building a Brain in the Lab – Scientific American

January 30, 2017

Building a Brain in the Lab Nice summary of the development of organoids & their promise for personalized treatments