Psychological Science has published research on 9 month old infants reaction to tactile input. The parents sat the infant on their lap while the experimenter stroked the back of the infant’s arm with a paintbrush. The experimenter varied the rate of the brushstrokes among three defined velocities: slow, medium and fast (0.3, 3, or 30 …
Psychological Science has published research on 9 month old infants reaction to tactile input. The parents sat the infant on their lap while the experimenter stroked the back of the …
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