Glossary

Glossary

Understand key terms and concepts in speech-language pathology. Whether you’re a seasoned clinician or just starting out, this glossary is here to support your learning and practice.
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Stuttering

Stuttering is a fluency disorder characterized by involuntary disruptions in the flow of speech, such as sound repetitions, prolongations, and blocks. These disruptions are often accompanied by physical tension, emotional distress, and avoidance behaviors, though language formulation and cognition remain intact.

Swallowing Disorders (Dysphagia)

Dysphagia (difficulty swallowing) is a disorder that disrupts the safe and efficient movement of food, liquids, or saliva through the oral, pharyngeal, or esophageal phases of swallowing. It can lead to risks such as aspiration, malnutrition, and dehydration and is commonly associated with neurological or structural impairments.

Syllable Repetitions

​​Syllable repetitions are disfluencies involving repeated syllables, such as "ba-ba-banana."

Syntax

The rules governing sentence structure in language.

Task Analysis

Breaking down complex skills into smaller, manageable steps for instruction.

Telepractice

The delivery of speech therapy services via online platforms, allowing for remote assessments and interventions.

Theory of Mind

Understanding that others have thoughts, feelings, and perspectives different from one's own.

Thickened Liquids

Modified drink consistency used in dysphagia management.

Tongue-Tie (Ankyloglossia)

A condition caused by a short or tight lingual frenulum that can restrict tongue movement and impact speech or feeding.

Total Communication

A method that combines speech, sign language, and other communication modalities to support individuals with hearing or language challenges.

Trauma-Informed Care

An approach to therapy that recognizes the impact of trauma on communication and behavior, emphasizing safety, trust, choice, collaboration, and empowerment in therapeutic relationships.

Traumatic Brain Injury (Adult)

Adult traumatic brain injury (TBI) is brain damage caused by external mechanical force, commonly from falls, motor vehicle accidents, or violence, resulting in cognitive, physical, and emotional impairments.

Traumatic Brain Injury (Pediatric)

Pediatric traumatic brain injury affects the developing brain and can result from falls, sports injuries, or abuse, with consequences that often unfold over months or years as cognitive demands increase.

Traumatic Brain Injury (TBI)

An injury to the brain caused by external force, often resulting in communication, cognitive, or swallowing impairments.

Unaided Communication

Communication methods that rely solely on the individual's body, such as gestures, facial expressions, or sign language, without external tools.

Unilateral Hearing Loss

Hearing impairment in one ear, which can affect language development, auditory processing, and sound localization.

Unintelligibility

The degree to which speech cannot be understood by listeners.

Upper Aerodigestive Tract

Anatomical regions including the nose, throat, and upper esophagus involved in breathing, speaking, and swallowing.

Upper Esophageal Sphincter (UES)

Muscle at the entrance to the esophagus, important in swallowing function.

Utterance

A complete unit of speech, bounded by silence or speaker change, used in language analysis.

Utterance Length

The number of words or morphemes in a spoken phrase, often measured as MLU (Mean Length of Utterance).

Velopharyngeal Insufficiency (VPI)

A condition where the soft palate does not close properly, leading to hypernasality and speech difficulties.

Vestibular System

The sensory system in the inner ear responsible for balance and spatial orientation, which can affect motor skills and communication.

Videofluoroscopy

Videofluoroscopy is a dynamic X-ray procedure used to assess the swallowing process in real time.

Visual Cueing

Use of visual signals to support correct speech production.

Vocal Abuse

Behaviors that can damage the vocal folds, such as excessive shouting or throat clearing.

Vocal Fold Nodules

Benign growths on the vocal cords caused by strain or overuse, often leading to hoarseness.

Vocal Hygiene

Practices that maintain vocal health and prevent voice disorders.

Vocal Quality

The characteristic sound of an individual's voice, including features like roughness, breathiness, or strain.

Vocal Rest

Prescribed period of reduced or eliminated voice use to promote vocal fold healing.

Vocal Tract

The air passages above the vocal folds used in speech production.

Voice Banking

Recording one's voice for potential future use with speech-generating devices.

Voice Disorder

Voice disorders affect the ability to produce clear and functional vocal output, often due to structural, neurological, or behavioral factors. SLPs help individuals restore healthy voice function using evidence-based therapeutic strategies.

Voice Therapy

Treatment approaches for improving vocal function and health.

Water Protocol

Structured program for safe liquid consumption in patients with dysphagia.

Wernicke’s Aphasia

Wernicke’s aphasia is a fluent aphasia characterized by nonsensical, often “word salad” speech and severely impaired language comprehension.

Word Retrieval

The process of accessing and producing a specific word from memory, commonly targeted in therapy for individuals with aphasia or cognitive-linguistic challenges.

Working Memory

The cognitive system responsible for temporarily holding and processing information, critical for language comprehension and production.

Written Language Disorders

Difficulties with reading, writing, or spelling due to underlying language impairments.

Xerostomia

Dry mouth - often due to aging, side effects of certain medicines, or radiation therapy for cancer.

Yale Swallow Protocol

A standardized screening tool for assessing swallowing function and determining aspiration risk.

Yielding

A fluency-shaping technique used in stuttering therapy where tension is gradually released.

Zone of Proximal Development

The difference between what a learner can do without help and what they can do with guidance.
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