The child's daily contact with another human being is reduced to a few hurried minutes of feeding and changing, and otherwise their only stimulation is the ceiling, the walls or the bars of their cots.
Hubungan sehari-harinya dengan orang lain berkurang menjadi beberapa menit untuk makan dan mengganti popok, sehingga rangsangan mereka hanyalah langit-langit, dinding, atau tiang ranjang mereka.