ASK PINNACLE · QUESTIONS, EXPLANATIONS & NEXT STEPS
Speech Therapy
Explore explanations, everyday questions and next steps connected with speech therapy.
1,744 published answers · English
Understanding
At what age can a child start augmentative and alternative communication (AAC)?
There is no minimum age for AAC — it can begin in the first year of life, decided by communication need rather than age. Gestures, signs, picture cards and speech-generating devices are introduced whenever a child has things to express but limited spoken words. Crucially, early AAC does not delay speech; evidence shows it supports and often encourages spoken language.
Read the answer AnswerAt what age can a child start speech and language therapy?
There is no minimum age for speech and language therapy — it can begin in infancy, even before a child's first words, because early support focuses on communication foundations like babbling, eye contact, gestures, listening, feeding and play. The right time to start is whenever there is a concern, not after a child has fallen behind, since the early years are when the brain adapts most readily. A gentle check is always worthwhile if something feels off.
Read the answer AnswerAt What Age Can a Child Start PECS?
There is no fixed minimum age for the Picture Exchange Communication System (PECS). It is most commonly introduced between around 18 months and 5 years, but can begin earlier or later — readiness matters more than age. A child is ready when they show intent to communicate (reaching, leading, eyeing what they want) but lack reliable spoken words to ask. PECS suits a wide age range and is best started with guidance from a speech and language therapist.
Read the answer AnswerHow does AAC help a child develop?
Augmentative and alternative communication (AAC) is any tool or method — from signs and picture boards to speech-generating apps and devices — that helps a child express themselves when speech alone is not yet enough. It does not replace or delay talking; evidence shows it supports speech and language growth while giving the child a reliable voice immediately. AAC builds vocabulary, eases frustration, strengthens social connection and nurtures independence, making it a bridge to development rather than a barrier.
Read the answer AnswerHow Communication Develops from Birth to School Age
Communication develops in overlapping stages from birth to school age: crying and cooing in early infancy, babbling and gestures by the first year, first words around 12 months, two-word phrases by age 2, short sentences by 3, and full conversations, storytelling and clear speech by school age. It includes far more than talking — listening, understanding, gestures, eye contact and turn-taking all matter. Every child has their own pace, but knowing the milestones helps parents cheer development on and seek a gentle check if needed.
Read the answer AnswerHow communication develops in the early years
Communication in the early years develops in a steady arc that begins long before a first word — from eye contact, cries and smiles, to babble, gestures like pointing, single words, two-word phrases and finally little sentences and conversations. It grows along two threads, understanding and expression, with understanding usually ahead. Communication is far more than talking: it includes gesture, joint attention and turn-taking, all nurtured through warm everyday moments. These windows are guides, not deadlines, and a gentle check helps if babble or gestures are absent by 12 months, no words by 16–18 months, or skills are lost.
Read the answer AnswerHow does speech and language therapy help a child develop?
Speech and language therapy helps a child understand and use communication — from first sounds and words to clear speech, social conversation, early literacy and, for some children, safe eating and drinking. A therapist works through play and structured practice to build each communication skill, while coaching parents so everyday moments at home become powerful therapy. It supports not just talking but confidence, behaviour, friendships and learning.
Read the answer AnswerHow does the auditory system affect a child's development?
The auditory system is how a child hears and makes sense of sound, from the ear to the brain's interpretation of it. It is central to development because clear, consistent hearing is the doorway to spoken language, listening, attention, social connection and early reading. Even mild or fluctuating hearing changes — such as from repeated ear infections — can slow language, but the early years are highly responsive, so support given early works well.
Read the answer AnswerThe Auditory System and Developmental Delay
The auditory system (ICF b230) provides the input that drives early spoken-language development, so hearing loss — including mild, fluctuating, unilateral or central difficulties — commonly presents as speech-language delay or listening inattention. Because auditory deprivation has time-sensitive effects on language and a passed newborn screen does not exclude later-onset loss, audiological assessment is a non-negotiable first step in any communication delay. Referral is warranted promptly on failed screening, parental or clinician concern, missed speech milestones, regression, recurrent otitis media, or known risk factors.
Read the answer AnswerHow does the oral-motor system affect a child's development?
The oral-motor system is the coordinated set of muscles and movements of the lips, tongue, jaw, cheeks and palate that lets a child suck, swallow, chew, breathe and speak. Because feeding and speech share this muscular foundation, oral-motor skills influence nutrition, growth, speech clarity and social confidence at mealtimes. It is a developmental foundation, not a diagnosis — most skills emerge naturally through feeding and play, and gentle support helps where they are slower to appear.
Read the answer AnswerHow does the oral-motor system relate to developmental delay, and when is referral warranted?
The oral-motor system (ICF b510) coordinates lips, tongue, jaw, palate and associated musculature for sucking, chewing, swallowing and the articulatory base of speech. Because it shares neural substrate with broader motor and language development, oral-motor dysfunction is a sensitive early marker of developmental delay and frequently co-occurs with neuromuscular and speech-sound disorders. Referral is warranted for any feeding-safety concern (coughing, choking, faltering growth), persistently lagging oral-motor milestones, persistent drooling, or markedly reduced speech intelligibility for age — ideally triggering a whole-child developmental review.
Read the answer AnswerHow Does PECS Help a Child Develop?
The Picture Exchange Communication System (PECS) teaches a child to communicate by exchanging a picture card for a desired item. It develops intentional, child-initiated communication, builds vocabulary and early sentences, reduces frustration, and often acts as a bridge towards spoken language — making it a valuable support for children who are not yet speaking or whose speech is limited.
Read the answer AnswerIs AAC backed by research evidence?
Yes — augmentative and alternative communication (AAC) is backed by solid research evidence. AAC covers any method beyond speech alone — gestures, picture cards, symbol boards, sign and speech-generating devices — that helps a child communicate. Studies and systematic reviews consistently show AAC improves communication and, importantly, does not stop or slow spoken language; for many children it actually encourages talking. It is a recognised, evidence-based part of speech and language therapy, working best when matched to the individual child and modelled in everyday routines.
Read the answer AnswerIs Speech and Language Therapy Backed by Research Evidence?
Yes — speech and language therapy is one of the most thoroughly researched childhood support approaches. Decades of studies, including Cochrane systematic reviews, show children who receive it make meaningful gains in understanding, talking, speech sounds and social communication compared with those who do not — especially when therapy starts early and parents are actively involved. It is a recognised, evidence-based intervention tailored to each child's needs.
Read the answer AnswerIs PECS Backed by Research Evidence?
Yes — PECS is one of the better-studied picture-based communication approaches. Controlled trials and systematic reviews show it helps many non-speaking or minimally verbal children learn to request and communicate intentionally, and the evidence does not show it suppressing speech. Gains are strongest for requesting, with conversational language and generalisation needing deliberate practice — so PECS works best as one well-supported tool within a broader, individualised communication plan guided by a speech-language therapist.
Read the answer AnswerSpeech and language therapy vs AAC: which does my child need?
Speech and language therapy (SLT) and AAC are rarely an either/or choice. SLT builds understanding and spoken communication, while AAC gives a child a voice right now using gestures, pictures or speech-generating devices. Evidence shows AAC does not hinder speech and often supports it. The right blend depends on how your child currently communicates, not their age — best decided through a clinician-led assessment.
Read the answer AnswerSpeech therapy or occupational therapy for my child?
Speech and language therapy and occupational therapy are complementary, not competing. Speech therapy supports understanding, talking, sounds, social communication and sometimes feeding; occupational therapy supports everyday 'doing' skills — fine motor control, self-care, attention, play and sensory processing. Many children need one, some need both. The right fit depends on what your child finds difficult, which is best decided after a proper developmental assessment rather than guessing.
Read the answer AnswerSpeech and Language Therapy or PECS — Which Does My Child Need?
Speech and language therapy is the whole, individualised journey of building a child's communication, while PECS (the Picture Exchange Communication System) is one evidence-based tool a speech therapist may use within that journey to give a non-speaking child an immediate way to request and connect. It isn't an either/or choice — research shows PECS does not hold back spoken language, and words often emerge alongside it. A speech-language pathologist decides, from a proper assessment, whether PECS, signing, speech-building or a blend fits your child best.
Read the answer AnswerPECS or AAC: Which Is Right for My Child?
PECS and AAC are not an either/or choice — PECS is one specific picture-exchange method that sits inside the broader family of AAC, which covers every tool that supports or replaces speech, from gestures and picture boards to speech-generating apps. The right starting point depends on your child's skills, motor abilities and motivation, so a speech and language therapist guides the decision. Importantly, AAC does not stop a child from talking; evidence shows it often supports spoken language by reducing frustration and building communication.
Read the answer AnswerWhat Causes Delays in Communication Development?
Delays in communication development occur when a child is slower than peers to understand language, use words, or connect socially. There is rarely one cause — contributors include hearing differences, oral-motor or speech-sound difficulties, fewer language-rich experiences, prematurity, or broader patterns such as autism or global developmental delay. A delay describes pace, not potential, and a friendly developmental and hearing check brings both answers and reassurance.
Read the answer AnswerWhat does Communication represent developmentally, and when is a delay significant?
Communication is the integrated capacity to share meaning — pre-verbal foundations (joint attention, gesture, turn-taking), receptive understanding and expressive language — distinct from the motor act of speech. A delay is clinically significant when milestones lag persistently: no babble or gesture by ~12 months, no words by ~16 months, no two-word phrases by ~24 months, or any loss of acquired language or social skills at any age, which warrants prompt evaluation including hearing assessment.
Read the answer AnswerWhat does Communication Skills represent developmentally, and when is a delay significant?
In the WHO ICF, Communication (d399) is the integrated ability to receive, produce and exchange messages across spoken, gestural and symbolic modes — comprehension, expression, and reciprocal pragmatic use. A delay is clinically significant when communicative function falls meaningfully below age expectations and persists or impairs participation, rather than reflecting transient single-domain variation. Red flags include no words by 16 months, no two-word phrases by 24 months, and any loss of acquired skills at any age, which warrants prompt referral.
Read the answer AnswerEarly Intervention Outcomes for Developmental Language Disorder Under 7
Current research shows that early, targeted intervention for Developmental Language Disorder in children under seven yields meaningful gains in expressive vocabulary, morphosyntax and functional communication, with the strongest effects for parent-implemented and clinician-led approaches at adequate cumulative dose. Receptive gains are more variable and language difficulties often persist into school years, so earlier identification and sustained dosing improve communicative and downstream literacy outcomes.
Read the answer AnswerEarly Intervention Outcomes for Selective Mutism Under 7
Research on Selective Mutism (ICD-11 6B06) in children under 7 supports early behavioural and CBT-based intervention — stimulus fading, graduated exposure and setting-specific generalisation — with the majority of young children showing meaningful cross-setting speech gains. Earlier initiation correlates with better outcomes, though the evidence base remains modest in size.
Read the answer