Sentences with phrase «between brain evolution»

Understanding the link between brain evolution and cognition is a challenge, however, because it is impossible to observe the brain activity of extinct humans.

Not exact matches

«This connection between an innate call and the activity of a brain area important to learned vocalisations suggests that during the evolution of songbirds, the role of the song area in the brain changed from being a simple vocalisation system for innate calls to a specialised neural network for learned songs,» concludes Manfred Gahr, coordinator of the study.

This relationship between unlearned calls and an area of the brain responsible for learned vocalisations is important for understanding the evolution of song learning in songbirds.

When they measured the concentrations in the same area in chimp brains, the team found that the differences between chimps and normal humans were much greater for those nine than for the 12 metabolites not implicated in schizophrenia, suggesting that energy pathways implicated in schizophrenia were also altered by human evolution, the team reports this week in Genome Biology.

They can also live on their own, and this ability to switch between a social and a solitary lifestyle makes them valuable models for studying brain evolution.

This greater ability to fashion our brains in response to our environment, the study maintains, could provide a link between biological evolution and cultural evolution.

The researchers identified fast - evolving species by comparing differences between groups with those obtained when simulating evolution at a constant rate across all lineages, and they found clear differences between tooth evolution and brain evolution.

«The findings of the study indicate that simple causal relationships between the evolution of brain size, tool use and tooth size are unlikely to hold true when considering the complex scenarios of hominin evolution and the extended time periods during which evolutionary change has occurred,» said Aida Gómez - Robles, lead author of the paper and a postdoctoral scientist at GW's CASHP.

At some point between the first amphibians moving onto dry land and the evolution of mammals, the neocortex arose — extra layers of neural tissue on the surface of the brain.

Ultimately, we will test how differences in brain size contribute to the shape and development of the skull between species and the evolution of rapid skull expansion found in mammals.

We are very impressed by Fred Kavli's design of these new awards, which span from the very grand scale of astrophysics to the microscopic level of nanotechnology, and to the level in between: the brain - no doubt the most complex organ created by the biological evolution over a very, very long time... billions of years.

Scientists believe that the ability to use our brain to differentiate between words and intonation was a huge step in the human evolution and development of speech.

Larry Young, a professor of psychiatry at Emory University who studies the neurological basis of complex social behaviors, thinks human evolution has harnessed an ancient neural circuit that originally evolved to strengthen the mother - infant bond during breastfeeding, and now uses this brain circuitry to strengthen the bond between couples as well.