Researchers (Pelaez-Nogueras et al., 1996b) have also demonstrated that
tactile stimulation augments other positive behaviors during the mother-infant
interactive experience. In several studies (Pelaez-Nogueras, 1996a; PelaezNogueras
et al., 1996b), infants between 1- and 4-months-old who received
touch as a stimulus spent more time in eye-contact, displayed more smiles
and vocalizations while also exhibiting less crying and fretting than infants
who didn’t receive the touch stimulation