Heart-ache can be a literal thing, as well as a metaphor for all those weepy, jilted-lover torch songs.
Consensus thinking in the peer-review literature is that the parts of one’s brain responsible for physical pain, the dorsal anterior cingulate and anterior insula, also underlie emotional pain.
Researchers at Columbia University in New York recruited 40 people who’d recently ended a romantic relationship, put them in a functional magnetic resonance imaging machine, and recorded their reactions to physical and then emotional pain.
Physical pain was created by heating the person’s left forearm, compared to having the arm merely warmed. Emotional pain was created by looking at pictures of the former partner and remembering the breakup, compared to when looking at a photo of a friend.
The fMRI scans showed physical and emotional pain overlapped in the dorsal anterior cingulate and anterior insula, with overlapping increases in thalamus and right parietal opercular/insular cortex in the right side of the brain (opposite to the left arm).
The theory is that Read more »
*This blog post was originally published at ACP Internist*
An international team of researchers has developed a rather reliable test that predicts the future improvement of reading abilities in kids with dyslexia. The method uses functional MRI (fMRI) and diffusion tensor magnetic resonance imaging (DTI) to scan the brain, and data crunching software to interpret the data. The researchers hope that the finding will help parents and therapists uniquely identify which learning tools are best for each child.
From the announcement by Vanderbilt University :
The 45 children who took part in the study ranged in age from 11 to 14 years old. Each child first took a battery of tests to determine their reading abilities. Based on these tests, the researchers classified 25 children as having dyslexia, which means that they exhibited significant difficulty learning to read despite having typical intelligence, vision and hearing and access to typical reading instruction.
During the fMRI scan, the youths were shown pairs of printed words and asked to identify pairs that rhymed, even though they might be spelled differently. The researchers investigated activity patterns in a brain area on the right side of the head, near the temple, known as the right inferior frontal gyrus, noting that some of the children with dyslexia activated this area much more than others. DTI scans of these same children revealed stronger connections in the right superior longitudinal fasciculus, a network of brain fibers linking the front and rear of brain. Read more »
*This blog post was originally published at Medgadget*