The LPFC is primarily involved in working memory, reasoning, planning, and active forms of imagination: Prefrontal Synthesis, mental rotation, and integration of modifiers.
The other part of the PFC, called the Ventromedial prefrontal cortex, is primarily concerned with inhibition of urges, motivation, identification of rewarding or otherwise significant stimuli, as well as mood and empathy.
Striedter, George F. (2005). Principles of brain evolution. Sinauer Associates. ISBN 978-0878938209. 978-0878938209 ↩