Psychologist Dr Gillian Sebestyen Forrester developed a new method of analysing the behaviour of gorillas in captivity and found there was a right-handed bias for actions that also involved head and mouth movements. The right side of the body is controlled by the left hemisphere of the brain, which is also the location for language development.
The findings could provide major clues as to how language developed in humans. Dr Sebestyen Forrester says: "We shared 23 million years of evolution with great apes and then diverged approximately six million years ago. Gorillas have highly-complex forms of non-verbal communication. I think we are looking back at what sort of communication skills we may have once had."
Previous studies by other researchers have found that chimpanzees show a right-handed preference for manual tasks. But Dr Sebestyn Forrester's research is the first to indicate a link between right-handedness and communication in apes.
The key to her findings, published Animal Behaviour, is the development of a detailed method for observing animals. "I have moved away from just studying visual communication signals of gorillas to looking for a method to capture, code and analyse these signals," she says. "For example, instead of subjectively labelling a behaviour as aggressive, I break down the behaviour into a sequence of stages based on eye gaze, facial expression and physical action. And I look for recurrent patterns within social context."
Dr Sebestyen Forrester carried out the research at Port Lympne Wild Animal Park in Kent, where there is a large biological family group of gorillas living in an enclosure modelled on their natural wild habitat. She focussed her attention on one adult female, 13-year-old Foufou, her infant son, M'Passa, and their social network. Two cameras were used to capture Foufou's every movement and expression as she interacted with the group.
Dr Sebestyen Forrester says: "Apes, like humans, use a range of nonverbal communicative social skills, such as facial expression, eye gaze and manual gestures, and tactile signals, such as grooming and huddling, which are used for social cohesion. Analysing synchronous physical action can help us identify communication signals and may prove a better way to understand of how animals 'talk' to each other."
The method - known as multidimensional method (MDM) - can also be used to study other non-verbal groups. Dr Sebestyen Forrester is now piloting a study of children aged between two and four years with language impairments. "Data from this method could help us to better understand the nonverbal communication signals that were important for the evolution of language and are still necessary for the development of normal language skills," she says. "I hope it will lead to better diagnoses of conditions such as autism and the creation of new health and education programmes to help these children at an early stage. Current diagnostic tests are based on how well a child can understand verbal instruction, but if we look for other ways to communicate with them we may be able to learn much more about what is going on for them."
Jacqui Bealing | alfa
Microscope measures muscle weakness
16.11.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg
Good preparation is half the digestion
16.11.2018 | Max-Planck-Institut für Stoffwechselforschung
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
09.11.2018 | Event News
06.11.2018 | Event News
23.10.2018 | Event News
16.11.2018 | Health and Medicine
16.11.2018 | Life Sciences
16.11.2018 | Life Sciences