 In one Taiwanese study of Kangaroo Care, a technique practiced on newborn infants in which a mother holds her child tightly against her chest, it was demonstrated that infant–mother dyads who listened to their choice of lullaby were associated with more quiet sleep states and less occurrence of crying by the infant and were also associated with significantly lower maternal anxiety, than those dyads who did not listen to lullabies.The therapeutic effect of lullabies can thus have a strong impact on calming anxieties and nurturing bonds, which is especially important with premature and fragile infants.Lullabies written by established classical composers are often given the form-name "berceuse", which is French for lullaby, or cradle song.