Our research supports the idea that human speech abilities comes down to our brain power.
Parents of autistic children are often encouraged to stick with one language at home - even if they speak several. But should they?
The short answer is that the accent you have depends on the people you grew up with and the history of the place that you live in.
The speech was delivered with panache and confidence. It had style, declaring to the nation and the world that he, Cyril Ramaphosa, was in charge.
Our drinking culture has brought some colourful phrases into the Australian vernacular.
Our voices also affect how people perceive our own social status.
People suffering hearing loss learn to speak through a combination of lip-reading and watching for visual clues.
We seem prepared to share our opinions on almost any subject today thanks to social media and other mass communication. But who is really listening?
South Africa's Finance Minister Pravin Gordhan spoke of protecting the economy from predators. This is commendable but not enough to build an inclusive economy.
With the taboo on swearing loosening over the past few decades, will profanity lose its effectiveness in spoken language?
People often tell new parents to avoid 'baby talk' because it will slow down the child's language development. But evidence shows it does the opposite.
If we're serious about freedom of speech, we need a more open and respectful discussion about words that cause insult and offence.
New research has found that Neil Armstrong's strong midwestern accent is making it impossible for us to work out what he actually said when he first set foot on the moon.
Two experts in political rhetoric explain how one candidate has used rhetorical devices like framing and 'argumentum in terrorem' to stoke fear and attract voters since the Orlando nightclub shooting.
Our heads are like radio receivers, and they can tune in to various different channels.
As a political speaker, either you pick your key phrases or they get picked for you.
Phone trees drive you mad? Just want to talk to an actual person? You aren't alone – despite the fact that most customer service journeys begin with automated interactive voice response systems.
Saturday, April 2, is World Autism Day. Many individuals with extraordinary ability have been found to have autism. Researchers have now found that many child prodigies have an autistic relative.
Researchers at CSIRO and University of Queensland have developed an app called Harlie that is designed to chat with humans.
Parents shouldn't be concerned if their bilingual child is slower to develop their vocabularly, because in most cases this is just a temporary lag.