For some time, the idea has been circulating that lefties are smarter than righties.
While some research has indicated a possible connection between left-handedness and a higher IQ, other research has revealed that right-handed people may actually have the advantage.
According to the research, lefties have lower IQs than righties.
The concept that handedness is connected with intelligence has been around for millennia. To interpret the data, it’s helpful to recognize the distinction between the left and right sides of the brain.
In summary, the right side of the brain performs more imaginative or abstract calculations, while the left side is linked to logical tasks and language.
According to Paul Mattis, Ph.D. a neuropsychologist at Northwell Health’s Center for Neurology and Neurosurgery in Manhasset, New York, “each function, behavior, cognition, emotion, somatic sensation, all of that, requires several parts of the brain to act as a network.”
“This interconnectedness enables the occurrence and existence of behavior, activity, or thinking. “Things don’t work as efficiently or functions are lost if you lose this connectivity between areas,” Dr. Mattis told Healthline.
A 2007 study in the Journal of the Indian Academy of Applied Psychology indicated that, out of 150 subjects, left-handed participants were considerably more likely to perform better on an IQ test than right-handed people. Moreover, right-handers took longer to finish the exam.
Scientists found that the left and right hemispheres of the brain were more connected and coordinated in areas related to language in left-handed people after analyzing data on around 400,000 individuals.
These characteristics imply that left-handed people may have stronger language abilities.