Meanings of spontaneous locomotor in inglés

The intraperitoneal administration of PTT and cocaine to male Fisher-344 rats produced dose-dependent increases in spontaneous locomotor activity and stereotypic behaviors.

The attenuating effect on cocaine seeking was not due to suppression of locomotor response, as DL-TBOA was found to transiently increase spontaneous locomotor activity.

At 30 days of age, female offspring were tested for spontaneous locomotor activity in an open field under two lighting conditions (dim or bright illumination).