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[First results given by a sleep automatic analysis for 2- to 12-months-old infants (author's transl)].

A sleep automatic analysis program was performed for infants older than 2 months. It used spectral analysis of the EEG and polygraphic parameters. Three EEG parameters and three polygraphic parameters are considered to be sufficient to stage babies' sleep with computers. Automatic detection was satisfactory for babies older than 4 1/2 months: agreement was better than 0.8 between automatic and human observation. Results are less satisfactory for the younger infants where there is only between .50 and .60 agreement between machine and human observers. These preliminary results confirm that decision criteria must be age related.