SLPLE key terms

The linked sequence of linguistic, physiological, acoustic, and perceptual events by which a speaker's intended message becomes a listener's understood message; breakdowns at any link can produce a communication disorder.

The gradual acquisition of a language's sound system, including phoneme inventory, syllable shapes, and phonotactic rules, typically moving from simple syllables and early sounds to full adult-like production by school age.

The listener's ability to detect, discriminate, and categorize acoustic speech signals into meaningful units such as phonemes, words, and sentences, including perception in noise and across talkers.

Growth in a child's use and understanding of word-building units, such as plural -s, past tense -ed, and derivational affixes, usually reflected in mean length of utterance and grammatical accuracy.

A productivity measure computed as the total number of morphemes divided by the number of utterances in a language sample, commonly used to estimate grammatical development in young children.

The growth of a child's ability to use language appropriately in social contexts, including turn-taking, topic maintenance, requesting, and adjusting messages for a listener's needs.

A systematic, rule-like simplification pattern young children apply to speech, such as final consonant deletion or stopping, which is expected early but becomes a concern when it persists beyond the typical age of suppression.

A communication disorder involving difficulty producing or using speech sounds correctly, encompassing articulation errors, phonological rule deficits, and motor-based production problems that reduce intelligibility.

A pediatric motor speech disorder in which the precision and consistency of movements underlying speech are impaired in the absence of neuromuscular deficit, producing inconsistent errors and disrupted prosody.

A persistent difficulty learning and using language that is not explained by hearing loss, intellectual disability, or other biomedical conditions, affecting comprehension and/or expression and interfering with everyday communication.

The use of language and nonverbal behavior to interact with others, covering pragmatics, social reciprocity, and the ability to adapt messages to context; deficits are a core feature of autism spectrum disorder.

A fluency disorder marked by repetitions, prolongations, and blocks that disrupt the forward flow of speech, often accompanied by physical tension, avoidance, and negative reactions to speaking.

A fluency disorder characterized by speech that is too fast or irregular, with excessive disfluencies, collapsed syllables, and unclear articulation, often with limited awareness of the problem.

A treatment approach that teaches stutterers a new, controlled speaking pattern using slow rate, gentle onsets, light contacts, and continuous phonation, then gradually transfers it to natural conversation.

A treatment approach that aims to reduce fear and struggle by helping clients identify, modify, and tolerate stuttering moments, using techniques such as cancellation, pull-outs, and preparatory sets.

The study of language impairment acquired after brain damage, especially stroke, covering classification, assessment, recovery patterns, and treatment of aphasia and related cognitive-communication deficits.

An acquired language disorder caused by damage to language-dominant brain regions, affecting word retrieval, comprehension, repetition, and sentence production while cognition is otherwise largely preserved.

Cognitive-communication impairment following right hemisphere damage, typically involving aprosodia, poor topic maintenance, impulsivity, neglect, and difficulty interpreting humor, inference, or abstract language.

Difficulty swallowing that may occur at the oral, pharyngeal, or esophageal stage, raising risks of aspiration, malnutrition, and dehydration and requiring clinical and instrumental evaluation.

Entry of food, liquid, or secretions below the level of the true vocal folds into the airway, which may occur silently without coughing and can lead to aspiration pneumonia.

An instrumental swallowing assessment using fluoroscopy and barium-coated materials to observe bolus flow, airway protection, and residue across the oral and pharyngeal stages in real time.

A graph plotting hearing threshold levels in decibels across frequencies, with separate symbols for each ear and for air versus bone conduction, used to classify type and degree of hearing loss.

Behavioral testing in which tones of varying frequency and intensity are presented to determine the softest level a person can hear, establishing air- and bone-conduction thresholds.

A categorical description of hearing sensitivity, commonly ranging from slight and mild through moderate, severe, and profound, based on threshold averages in decibels hearing level.

Low-level sounds produced by the active mechanics of healthy outer hair cells and measured with a probe in the ear canal, useful for screening and for estimating cochlear function.

An electrophysiologic test recording neural responses to sound from the auditory nerve and brainstem, used to estimate hearing thresholds in infants and others who cannot respond behaviorally.

Services that help people with hearing loss reduce communication difficulties, including hearing aid fitting, communication strategy training, speechreading, and counseling for clients and their families.

The use of visual cues from a talker's face, mouth, and gestures, together with residual hearing and context, to understand spoken messages when auditory information is incomplete.

An electronic device that amplifies and processes sound for a person with hearing loss, selected and verified through real-ear measurement to match prescribed gain targets across frequencies.

The ability to distinguish between similar acoustic stimuli, such as minimally different words or phonemes, a skill underpinning phonological awareness and speech perception.

Metalinguistic awareness of the sound structure of spoken words, including syllables, onsets and rimes, and individual phonemes, and a strong predictor of later reading and spelling success.

Systematic transcription and measurement of a client's spontaneous speech to evaluate syntax, vocabulary, morphology, and pragmatics, producing measures such as mean length of utterance and type-token ratio.

The degree to which a listener can understand a speaker's intended message, influenced by articulation, prosody, rate, context, and listener familiarity, and often measured as percentage of words understood.

An interactive evaluation that measures how much a learner improves with structured prompts and mediation, distinguishing language difference from disorder and estimating learning potential.

Augmentative and alternative communication: unaided or aided systems, from gestures and picture boards to speech-generating devices, that supplement or replace natural speech for people with severe communication impairment.

Clinical decision-making that integrates the best available research evidence, the clinician's expertise, and the client's values, preferences, and circumstances when choosing assessment and treatment methods.

A client's voluntary agreement to assessment or treatment after receiving understandable information about purpose, procedures, risks, benefits, alternatives, and the right to withdraw at any time.

The ethical and legal duty to protect client information from unauthorized disclosure, with limited exceptions such as suspected abuse, court order, or serious risk of harm to others.

The legally and professionally defined boundaries of services a speech-language pathologist may provide, including assessment, treatment, counseling, and referral limits set by law and licensure.