Activation of which of the following receptors would be expected to decrease anxiety?: (A) nicotinic cholinergic receptors, (B) glutamate receptors, (C) GABA A  receptors, (D) glucocorticoid receptors
Answer is C. Meissner and Pacinian corpuscles are examples of rapidly adapting receptors, and Merkel cells and Ruffini endings are examples of slowly adapting receptors.
Ganong 23 rd ed, pg 153