[Age-related characteristics of human perception of emotions in speech and in singing]. / Vozrastnye osobennosti vospriiatiia chelovekom émotsii v rechi i penii.

Monoaural presentation (in sequence to the left and right ears) of speech and vocal-musical phrases with different emotional content (joy, grief, anger, fear, indifference) has been made to children ageing between 7 and 16 years. These passages were performed by professional actors or singers. Absolute differences in the probability of correct identification of different emotions were obtained. They are maximal for fear and anger, being minimal for joy. Left ear preference to perception of emotions both in speech and in singing is already formed in 7-8 years old children.

[Interhemispheric brain asymmetry in speech perception by persons of different age groups and the "effect of directional attention"]. / Mezhpolusharnaia asimmetriia golovnogo mozga pri vospriiatii rechi u liudei raznykh vozrastnykh grupp i "éffekt napravlennogo vnimaniia"

Using dichotic tests, studies have been made on the degree of functional asymmetry of the brain with respect to perception of verbal information in 3-50 years old subjects. Significant age variations were found in the volume of the percepted speech information. Interhemispheral differences in speech perception, which reveal themselves in higher perception of the right ear as compared to the left one, are more evident in children under 10 years. Significant influence of the "effect of voluntary and involuntary attention" of the subjects was noted on the degree of asymmetry of dichotic speech perception, this influence alleviating the intrinsic functional asymmetry of the brain.