High-profile Queensland criminologist Paul Wilson has been found guilty on four child sex charges dating back to the 1970s.

The 75-year-old was convicted on four counts of indecent treatment of a child under the age of 12.

He had been accused of playing sex games with a young girl at his Brisbane home.

Wilson had pleaded not guilty.

A Brisbane District Court jury deliberated for less than half a day before returning with the guilty verdict.

Wilson will be sentenced tomorrow.

Wilson 'played sex games'

During the eight-day trial, the court heard how on one occasion in the 1970s Wilson lured a girl into his bedroom and asked her to stroke a cat he was holding in front of his exposed genitals.

He also played a blindfolded game of hide and seek with the same girl, before sexually assaulting her, the court heard.

When questioned about this by prosecutor Philip McCarthy, Wilson responded: "I deny that utterly, utterly."

"I never played hide and seek with any children," Wilson also told the court, adding: "That is absolute fantasy, it never occurred."