A universal sign of motherhood is the lullaby. The world over, mothers sing to their babies, whether Twinkle Twinkle Little Star, their favorite song from the radio, or even random notes. This universality makes the simple lullaby a great window into the human mind. In a new study, cognitive neuroscientists found that lullabies soothe both moms and babies simultaneously, while playsongs increase babies’ attention and displays of positive emotion toward their mothers.
The behavioral implications of music are vast, says Laura Cirelli of the University of Toronto Mississauga, who is presenting the new work on maternal singing at the 25th meeting of the Cognitive Neuroscience Society (CNS) in Boston today. “Infant brains must be able to track auditory events in a predictive manner to make sense of music,” she explains, and many complex things are going on in their brains to make that possible.
From infancy to old age, music demands much from the human brain. Learning more about how we process music is helping scientists better understand perception, multisensory integration, and social coordination across the lifespan. Technological advancements – for example, more portable electroencephalography (EEG) and electrophysiology set-ups and- are allowing cognitive neuroscientists to study music in a variety of situations, from mother-child interactions to live concert halls.
When we train the reaching for and grasping of objects, we also train our brain. In other words, this action brings about changes in the connections of a certain neuronal population in the red nucleus, a region of the midbrain. Researchers at the University of Basel’s Biozentrum have discovered this group of nerve cells in the red nucleus. They have also shown how fine motor tasks promote plastic reorganization of this brain region. The results of the study have been published recently in Nature Communications.
Simply grasping a coffee cup needs fine motor coordination with the highest precision. This required performance of the brain is an ability that can also be learned and trained. Prof. Kelly Tan’s research group at the Biozentrum, University of Basel, has investigated the red nucleus, a region of the midbrain that controls fine motor movement, and identified a new population of nerve cells which changes when fine motor coordination is trained. The more that grasping is practiced, the more the connections between the neurons of this group of nerve cells are strengthened. Continue reading →
I really wanted to reproduce this just because the illusion seemed so cool to me. I don’t know that you can benefit from in any way, but to enjoy it. Follow the directions in the caption – and enjoy.
Summary: Researchers report the same subset of neurons encode actual and illusory flow motion, supporting the concept Jan Purkinje proposed 150 years ago, that “illusions contain visual truth”.Source: SfN.
A study of humans and monkeys published in Journal of Neuroscience has found the same subset of neurons encode actual and illusory complex flow motion. This finding supports, at the level of single neurons, what the Czech scientist Jan Purkinje surmised 150 years ago: “Illusions contain visual truth.”
Fixate the black dot and move your head towards and away from the image and you should perceive the rings rotating. NeuroscienceNews.com image is credited to Junxiang Luo.
The Pinna-Brelstaff figure is a static image of rings that appear to rotate clockwise as one moves toward and counterclockwise as one moves away from the figure. Having previously identified particular parts of the human brain that represent the Pinna illusion, Junxiang Luo and colleagues at the Institute of Neuroscience, Chinese Academy of Sciences first confirmed that male rhesus macaques likely perceive the illusion similarly to people.
The researchers then recorded activity from individual neurons in the previously identified brain regions, and discovered cells that signal the illusory motion similarly to actual motion. A delay of about 15 milliseconds enables the brain to register the illusory motion as if it was real.
This study provides new insights into how the brain grapples with the continual mismatch between perception and reality.
“It is exercise alone that supports the spirits and keeps the mind in vigor.” – Marcus Tullius Cicero – 65 BC.
“Exercise invigorates and enlivens all the faculties of body and mind…. It spreads a gladness and a satisfaction over our minds and qualifies us for every sort of business, and every sort of pleasure.” – John Adams, Second President of the U.S.
On the other hand, that curmudgeon, Mark Twain said, “I take my only exercise acting as pallbearer at the funeral of my friends who exercise regularly.”
The business of brain-training is a multi-million dollar operation. It includes software and games we can play on our computers, Nintendo, smart phones as well as specialized machines. Also, there are the puzzles, like Sudoku, crosswords and other pattern recognition games.