“…The increase in bilateral IFG activity may reflect higher cognitive demands to integrate nonliteral meanings, as opposed to literal ones, into a sentence context or regulate the meaning selection and evaluation during metaphor comprehension, as it is necessary to decide whether the meaning of a word is intended to be literal or nonliteral (Rapp, Erb, Grodd, Bartels, & Markert, 2011;Rapp et al, 2012). However, IFG activation also is found in insightful problem solving, such as in chunk decomposition task (Huang et al, 2015) and compound remote-associates task (Kizilirmak et al, 2016). Because such trials require semantic selection to obtain an insightful solution, IFG stimulation may primarily reflect the breaking of mental set and set shift (Shen, Luo, Liu, & Yuan, 2013).…”