Our son just celebrated his 1st birthday

Answer

Yes — your husband is right that a consistent response to name is the kind of thing the 12-month checkup is built to look at, and Friday's visit is the right place to raise it. Here is what the evidence base says about each of your three questions.

**Today's date: Sunday, 2026-09-27.** Age basis: chronological, 12 months. No gestational weeks given, so no corrected-age adjustment.

### 1. What the CDC 1-year (12-month) checklist actually says

The 1-year card lists what 75%+ of children this age typically do:

- **Social**: plays games with you, like pat-a-cake.
- **Language**: waves bye-bye; calls a parent "mama" / "dada" or another special name; understands "no" (pauses or stops).
- **Cognitive**: puts something in a container (block in a cup); looks for things you hide.
- **Movement**: pulls up to stand; walks holding furniture; drinks from a cup you hold; picks things up between thumb and pointer finger.

What your son shows from this card: pulls up (yes), cruising along furniture = "walks holding furniture" (yes), pincer grasp with blocks (implied), babbles strings of consonants. He is making eye contact when picked up and smiling back when smiled at, which is a good social baseline.

What 75% means and doesn't: this is the level at which most children this age do these things — it is a monitoring tool, not a pass/fail test. Missing one item is not a label. It is a reason to write the observation down and discuss it at the visit.

About "responds to name" specifically: this milestone is on the **9-month** CDC card, not the 1-year card. The 9-month social section says: "Looks when you call her name." Clinicians expect this behavior to still be present at 12 months. Your husband is right that failure to turn is meaningful at this age. What we don't know yet is why.

- 1-year card source: https://www.cdc.gov/act-early/milestones/1-year.html
- 9-month name-response source: https://www.cdc.gov/act-early/milestones/9-months.html

### 2. "Selective hearing" vs. social auditory orientation

Hearing in a toddler is two different jobs:

- **Peripheral hearing** — the ear, auditory nerve, and brainstem. This is what an audiologist tests with objective tools. Your son's quick head-turn to the chip-bag crinkle and the music toy across the room is a useful sign that this pathway is awake and he can localize soft environmental sounds. It is reassuring information, but only about the ear-side of hearing.
- **Social auditory orientation** — the brain noticing that a particular sound pattern (his name, in a known voice, with social context) is about *him*, and is worth turning for. The 9-month "looks when you call her name" milestone sits here. By 9 months, almost all typically developing babies have learned their name as a personal signal and will pause or turn for it, even when they're focused.

A child can pass the first job easily and still struggle with the second. "Selective hearing" is a label about attention, not a clinical explanation. Specialists do not dismiss the gap because the chip-bag pattern is exactly the one they are trained to ask about — environmental sounds orient, social speech does not. That pattern is not an answer and it is not a diagnosis; it is exactly the pattern that prompts a **formal hearing screen plus a formal developmental screening** so the clinician can sort it out.

(What this skill does not do: turn a checklist gap into a label. ASD, a hearing disorder, a language delay, or just a normal variation — each is a different answer, and only the visit and the screen can tell you which.)

### 3. What to bring Friday, and how to practise at home

#### Pediatrician visit — what to ask for, in this order

1. **Formal hearing screen, not just an in-office check.** A "did the baby turn?" test in the room is not the same thing. Ask for tympanometry (middle-ear fluid check) and an objective audiologic assessment appropriate at 12 months. If a recent cold or fluid was ever suspected, the tympanometry part is the first thing to clear.
2. **Formal developmental screening.** A validated questionnaire scored by the clinician — the most commonly used are the ASQ-3 (general development, five domains) and the M-CHAT-R/F (autism-specific follow-up). CDC uses both as examples and does not endorse one over the other; your pediatrician's office will know which they routinely run.
3. **Bring dated observations**, not conclusions. CDC's "share with your doctor" prompts are useful framing: (a) what you and the child do together, (b) anything he does or doesn't do that concerns you, (c) any lost skills, (d) born prematurely or special healthcare needs.

| Date | Situation | What we did | What he did |
|---|---|---|---|
| 2026-09-27 | Quiet room, engaged with blocks | Called his name from 5 ft, cheerful voice, 2–4 times | No head turn, no pause, no glance |
| 2026-09-27 | Same room | Crinkled a chip-bag across the room | Immediate head turn toward the sound |
| 2026-09-27 | Same room | His musical toy began playing softly in another corner | Immediate head turn toward the sound |

Also worth logging, with dates: does he ever **point** to show you something, or **bring** an object to give you? Does he look at you to "check you're watching" during play (joint attention)? These are the social items specialists ask about alongside name response.

- Developmental monitoring vs screening (what each does and doesn't do): https://www.cdc.gov/act-early/about/developmental-monitoring-and-screening.html

#### Home play — low-pressure social orientation

The goal is to give his name salience without making it a test. Soft voice, short, leave breathing room.

1. While he is playing calmly but *not* deeply focused, say his name softly once. Pause 1–2 seconds before doing anything. If he glances, smile and keep the game going. If not, wait 30 seconds, try once more, then let it go.
2. Pair his name once with a small delight — a peek-a-boo, a kiss, the offer of a favorite toy. Don't repeat his name five times in a row.
3. "Where is \[Name]?" in front of a mirror. Point at his reflection and say his name; then point at you or Dad and say yours. Three voices helps.
4. Hold a preferred toy just out of reach and say his name once. When he turns, hand it over. Short, warm, repeated.
5. One or two easy wins a day, not drills. Skip the practice if he's tired, hungry, or already deep in focused play. Back off if he arches away, fusses, or covers his ears — that is data, not failure.

If at any point something changes for the worse — he stops babbling, stops eye contact, loses a skill he had — that moves the visit from "next Friday" to "before next Friday."

#### One thing I have not given you

The local screening entry point — the door you would knock on if the screening suggests a closer look — depends on where you live: e.g., US Early Intervention for under-3s, NHS Healthy Child review in England, the 0–6 public-health package at the 12-month township visit in mainland China, 早疗 in Taiwan, etc. I have not written any of those in because I do not know where you are, and writing a programme name without verifying against `residence` would be a guess.

**One question**: Which country or region are you in? That is the only thing I need to hand you the right local entry point to take with you on Friday.