Agerman neurologist named identified an area on the left temporal lobe that, when damaged, disrupted the ability to understand written or spoken language.

 The answer is "Karl Wernicke".

Karl Wernicke was a persuasive individual from the nineteenth-century German school of neuropsychiatry, which saw every dysfunctional behavior as coming about because of deformities in brain physiology. A rehearsing clinical neuropsychiatrist, Wernicke additionally made real revelations in mind life structures and pathology. He trusted that variations from the norm could be limited to particular areas of the cerebral cortex and accordingly could be utilized to decide the elements of these locales. Wernicke was one of the first to think about cerebrum work as reliant on neural pathways that associated distinctive areas of the mind, with every locale contributing a generally straightforward tactile engine action. At the time, most researchers imagined the cerebrum as working as a solitary organ. Wernicke additionally exhibited predominance by either the privilege or left hemispheres of the cerebrum.