Table 1.

Effects of infralimbic cortex manipulations on memory for fear extinction

	Method	Task	Ext. memory	Reference
Facilitators
	CB1 receptor agonist	cued fc	enhanced	Lin et al., 2009
	BDNF	cued fc	enhanced	Peters et al., 2010
	M-type K(+) channel blocker	cued fc	enhanced	Santini & Porter, 2010
	GABAa antagonist picrotoxin	cued fc	enhanced	Thompson et al., 2010
	microstimulation	cued fc	enhanced	Kim et al., 2010
	GABAa antagonist picrotoxin	cued fc	enhanced	Chang & Maren, 2011
	histone acetyltransferase	cued fc	enhanced	Marek et al., 2011
Inhibitors
	CB1 receptor antagonist	cued fc	impaired	Lin et al., 2009
	inactivation with muscimol	context fc	impaired	Laurent & Westbrook, 2009
	D2 antagonist raclopride	cued fc	impaired	Mueller et al., 2010
	mGluR5 antagonist MPEP	cued fc	impaired	Fontanez-Nuin et al., 2011
	inactivation with muscimol	cued fc	impaired	Sierra-Mercado et al., 2011