The myth of the left-brain and the right-brain
Some studies have indeed shown that the right hemisphere seems to be involved more when we have an Aha! flash of insight. For instance, one study found that activity was greater in the right hemisphere when participants solved a task via insight, rather than piecemeal. Another showed that brief exposure to a puzzle clue was more useful to the right hemisphere, than the left, as if the right hemisphere were nearer the answer.
But insight is just one type of creativity. Telling stories is another. One of the most fascinating insights from the split-brain studies was the way the left hemisphere made up stories to explain what the right hemisphere was up to – what Gazzaniga dubbed the “interpreter phenomenon”. For example, in one study, a patient completing a picture-matching task used their left hand (controlled by the right hemisphere) to match up a shovel with an image of a snow storm (shown only to the right hemisphere). The patient was then asked why he’d done this. But his left hemisphere (the source of speech) didn’t admit to not knowing. Instead, it confabulated, saying that he’d reached for the shovel to clear out the chicken coup (the picture shown to the left hemisphere was of a bird’s foot)…
Why the Right-Brain, Left-Brain Myth Will Probably Never Die by Christian Jarrett in Psychology Today.
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