Lesions to right prefrontal cortex impair real-world planning through prematurecommitments

►Right PFC patients generate substandard solutions in a real-world planning task. ► Real-world planning requires a judicious interplay between abstract and concrete representations. ► Right PFC patients are impaired in real-world planning because they are unable to maintain vague, abstract representations. ► Right PFC patients rely on overly concrete representations that prematurely lock them into poor solutions.