Page 16 - EEG of Newborn and Infants
P. 16

EEG of Premature (32-35 Weeks)

Continuity                              Continuous in waking and REM, discontinuous in NREM
Interhemispheric synchrony              Partly synchronous, especially in occipital leads
Differentiation of waking and sleeping  Waking distinguished from sleep early in the period
Posterior basic alpha rhythm            None
Slow activity (awake)                   Slow (delta) with occipital maximum
Temporal theta burst                    Decreasing and disappearing
Occipital theta                         Decreasing
Fast activity (awake)                   Frequent ripples or brushes (16-20/sec)
Low voltage                             Low voltage records suspect of serious cerebral pathology
Tracé alternant                         Present in NREM (quite) sleep
Spindles                                None (but ripples present)
Vertex waves and K complexes            None
Positive occipital sharp transients     None
Slow and fast activity in sleep         Irregular slow activity of occipital predominance
REM sleep                               Continuous slow activity

                                                                                      Niedermeyer E Electroencephalography 1999
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