A strength of the cognitive approach?

-Fairly scientific on thier approach in understanding the brain -Seen through Tulving's tudy into different areas of the brain performing tasks their participants performed various memory task while their brains were being scanned using a PET scanner -Found that semantic memories (knowledge of the world) were recalled in the left prefrontal cortex while episodic memories (personal events) were recalled from the right prefrontal cortex. -Lab experiments which means variables are highly controlled, resulting in scientitic rigour and allowing for cause and effect to be established.