Sound Cause and Effect
Parent rings a bell to make a toy appear and plays a different sound to make the toy disappear, helping baby learn to associate sounds with events. The agent guides the parent to observe sound-event association, sustained attention, and auditory localization, building early cognitive understanding that sounds can carry meaning.
Opens a guided voice session in TogetherTime.
What you'll need
Baby seated with support or in a seat, alert and attentive. Parent has a bell or noisemaker and a small toy. Second sound source helpful (e.g., shaking a container vs. ringing a bell).
How it works
- 1~40s
Ring the bell and simultaneously bring the toy into your child's view — like magic! Let your child play with it for a few seconds. Then make a different sound — maybe a shaking sound — and hide the toy behind your back. Repeat this two or three times: bell equals toy appears, shake equals toy disappears. Watch your child's face closely. Does they look for the toy when the bell rings? Does they look curious or surprised? Tell me what you see.
Watch for: Baby begins to associate a specific sound with the toy appearing or disappearing.
- 2~30s
This time, after you ring the bell and show the toy, watch how long your child stays focused on the toy before looking away. Count the seconds in your head. Then try the disappearing act — play the other sound and hide the toy. Does your child keep looking at where the toy was? That's called 'visual persistence' and it means they remembers the toy was there even though it's gone. What happens?
Watch for: Baby maintains focused attention on the toy and continues to look at its location after it disappears.
- 3~30s
For the last round, try ringing the bell from slightly behind your child or off to one side, out of their view. Does your child turn toward the sound? And here's the exciting part — after they locates the sound, does they also look for the toy? If your child has learned the association, hearing the bell should make them expect the toy, even when the sound comes from an unexpected direction. What do you observe?
Watch for: Baby turns toward the bell sound from outside their visual field and anticipates the toy's appearance.