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Electrocortical (ECoG) and integrated electromyographic (EMG) activity was recorded in 6 chronically prepared fetal sheep (132-145 days). Recording were made in fetuses prior to and during repeated vibroacoustic stimulation. In the undisturbed fetus, two patterns of ECoG activity were apparent; high (HV) and low voltage (LV). The fetus responded to this broad spectrum stimulus during both LV and HV ECoG activity. In 18 of the 20 experiments, repeated stimulation was not associated with a change in the background ECoG activity. All fetuses responded at least once to the stimulus. Habituation of the EMG response was observed during both HV and LV ECoG activity. The rate of habituation was independent of the background ECoG activity and was unchanged when experiments were repeated at intervals of more than 3 days. These results show that fetal sheep also respond to vibroacoustic stimulation and with repetition habituation occurs.
L R Leader, and
A D Stevens, and
E R Lumbers
January 1993,
American journal of perinatology,
L R Leader, and
A D Stevens, and
E R Lumbers
November 1991,
American journal of perinatology,
L R Leader, and
A D Stevens, and
E R Lumbers
August 2001,
European journal of obstetrics, gynecology, and reproductive biology,
L R Leader, and
A D Stevens, and
E R Lumbers
January 1991,
Nursing times,
L R Leader, and
A D Stevens, and
E R Lumbers
March 2001,
Early human development,
L R Leader, and
A D Stevens, and
E R Lumbers
December 1993,
American journal of obstetrics and gynecology,
L R Leader, and
A D Stevens, and
E R Lumbers
December 1992,
Child development,
L R Leader, and
A D Stevens, and
E R Lumbers
June 2014,
Research in developmental disabilities,
L R Leader, and
A D Stevens, and
E R Lumbers
February 1990,
Obstetrics and gynecology,
L R Leader, and
A D Stevens, and
E R Lumbers
October 1997,
Appetite,
