A developmental decline in the learning-promoting effects of infant-directed speech for infants of mothers with chronically elevated symptoms of depression.
Kaplan PS, Danko CM, Kalinka CJ, Cejka AM. A developmental decline in the learning-promoting effects of infant-directed speech for infants of mothers with chronically elevated symptoms of depression. Infant Behav Dev. 2012 Jun; 35(3):369-79.