Definition: Communication disorders are characterized by deficits in language, speech, and communication. These disorders can significantly impact an individual's ability to interact effectively.
Diagnostic Categories of Communication Disorders
Language Disorder: Issues in understanding or using language.
Speech Sound Disorder: Difficulties in articulation or sound production.
Childhood-onset Fluency Disorder: Such as stuttering, characterized by disrupted speech flow.
Social (Pragmatic) Communication Disorder: Challenges in the social use of communication.
Specific Learning Disorder
Defined as specific problems in learning and using academic skills, impacting reading, writing, or mathematics.
EXPRESSIVE LANGUAGE DEVELOPMENT
Stages of expressive language development:
Cooing/Babbling: Resulting in vocalizations, usually beginning around 2-3 months.
Single Words: Around 12 months, children typically begin speaking single words.
Holographic Speech: Using a single word to convey a complex idea or phrase (approx. 12-18 months).
Telegraphic Speech: Two or three-word phrases that convey straightforward meanings (around 18-24 months).
Sentences/Narratives: By age 3, children typically start stringing together longer sentences and narrating simple stories.
SPEECH DEVELOPMENT RED FLAGS
Before 12 Months:
Baby not smiling or engaging in back-and-forth interaction.
Baby not babbling (e.g., "bababa", "dadada").
Not pointing or using gestures.
12 to 15 Months:
Child does not use 6-10 words consistently.
Does not follow simple directions (e.g., "come here").
Cannot put together simple sentences.
18 to 24 Months:
Strangers can’t understand 50%-75% of what the child says.
SIGNS OF COMMUNICATION DISORDERS
The importance of appreciating early language development is paramount. Early problems are predictive of future communication and learning disorders and need to be addressed.
LANGUAGE DEVELOPMENT
Infants: At this stage, children selectively attend to parental speech sounds.
By Age 1: A child can recognize several words and also express needs and emotions with a few words.
Exponential Growth: Over the next two years, language skills burgeon, evolving from cooing to formulating complex ideas and expressing new concepts.
PERCEPTUAL MAPS IN LANGUAGE DEVELOPMENT
Definition: Perceptual maps in the brain are formed through repeated exposure to phonemes—the basic sounds of speech.
By 6 Months: Infants can differentiate sounds relevant to their language.
By Age 1: The perceptual map is complete, and they lose the ability to discriminate sounds not pertinent to their native language.
PHONOLOGICAL AWARENESS
Phonology: The understanding and storage of phonemes and the rules for combining them into meaningful units.
Deficits in Phonology: These can lead to communication and learning disorders affecting skills such as reading and spelling.
Key Aspects of Phonological Awareness:
Recognizing relationships between sounds and letters.
Detecting rhyme and alliteration.
Awareness of sound manipulation within syllables.
CATEGORIES OF COMMUNICATION DISORDERS (DSM-5)
Language Disorder
Speech Sound Disorder
Childhood-onset Fluency Disorder
Social (Pragmatic) Communication Disorder
LANGUAGE DISORDER (LD)
Definition: Characterized by expressive deficits despite normal comprehension.
Occurs when language development is at least 12 months behind chronological age.
Common Features:
Delayed or slowed speech development.
Limited vocabulary and use of short sentences.
Simple grammatical structure.
LANGUAGE DISORDER SKILL VARIABILITY
Linguistic abilities fluctuate significantly among individuals with LD.
DIAGNOSTIC CRITERIA FOR LANGUAGE DISORDER
Persistent difficulties in language acquisition including but not limited to:
Reduced vocabulary.
Limited sentence structure.
Impairments in discourse capabilities.
CONTINUED CRITERIA FOR LANGUAGE DISORDER
Language abilities are substantially below age expectations, leading to functional limitations in communication, social participation, and academic performance.
Symptoms often emerge in early developmental stages, not due to hearing or sensory impairments or medical conditions.
PREVALENCE AND COURSE OF LANGUAGE DISORDER
Affects approximately 7% of younger school-age children.
More frequently identified in boys than girls.
Many children normalize their language skills by adolescence (about 50%).
Higher instances of negative behaviors are reported in children with LD.
BIOLOGY OF LANGUAGE DISORDER
Genetic factors play a crucial role.
Temporal processing deficits in the brain contribute.
A feedback loop in the left temporal lobe is often involved, indicating problems in brain area connections.
OTHER CAUSES OF LANGUAGE DISORDER
Otitis Media: Recurrent middle ear infections can lead to delays in speech and language development.
Home Environment: Generally, not a cause, except in extreme neglect or abuse cases.
TREATMENT OF LANGUAGE DISORDER
Many language disorders self-correct by age 6, necessitating little to no intervention.
Parental Strategies: Include enrolling the child in specialized preschool and using blended instructional methods.
Focus on Strengths: Building on existing capabilities to facilitate language development.
MORE TREATMENT STRATEGIES
Promote language competencies.
Adjust environments to support communication needs.
Implement therapies to mitigate emotional and behavioral symptoms.
WHAT IS SPEECH THERAPY?
Defined as a profession dedicated to the prevention, assessment, diagnosis, and treatment of various communication disorders, including speech, language, social communication, cognitive-communication, voice fluency, and swallowing issues (based on the definition by the American Speech-Language-Hearing Association).
Benefits of Speech Therapy
Enhanced quality of life.
School readiness and academic preparedness.
Improvement of cognitive skills and effective communication.
Better understanding and expression of thoughts and feelings.
Development of social language skills and play skills.
Improvement in swallowing function and vocal quality.
SPEECH SOUND DISORDER
Defined as a persistent difficulty in producing speech sounds correctly, affecting intelligibility and verbal communication.
Problems may stem from phonological knowledge deficits or coordination issues in speech production.
Can lead to challenges in social, academic, or occupational participation.
SYMPTOMS OF SPEECH SOUND DISORDER
Persistent difficulties that affect speech clarity and communication.
Limitations in social participation or performance, beginning early in life.
Symptoms cannot be attributed to other medical or neurological conditions.
CHILDHOOD-ONSET FLUENCY DISORDER (STUTTERING)
Defined by the repetition and prolonged pronunciation of syllables that disrupt communication.
Prevalence: Surveys indicate 11% of children stutter by age 4, with a similar incidence in boys and girls. About 80% of those stuttering before age 5 outgrow the condition after a year in school.
CAUSES AND TREATMENTS OF CHILDHOOD-ONSET FLUENCY DISORDER
Genetics: Accounts for 70% of variance.
Environmental Factors: Contribute to the remaining variance.
Treatment Options:
Parental adjustments: Engage the child with a slower, simpler speech.
Contingency management and habit reversal methods.
SOCIAL (PRAGMATIC) COMMUNICATION DISORDER (SCD)
Recognized as a new diagnosis in the DSM-5, marked by ongoing issues in the pragmatic use of language.
Comorbid Conditions of SCD
SCD can exist alone or alongside conditions such as Autism Spectrum Disorder (ASD) or learning disabilities.
UNDERSTANDING PRAGMATIC LANGUAGE
How We Use Words: Including greetings, requests, and providing information effectively based on context.
Non-Verbal Language: Involves understanding eye contact, gestures, and personal space.
Conversation Skills: Such as staying on topic, taking turns, and asking relevant questions.
DIAGNOSTIC CRITERIA OF SOCIAL (PRAGMATIC) COMMUNICATION DISORDER
Persistent deficits in social use of communication evidenced by:
Failure to use communication for social purposes: greeting and sharing information appropriately.
Inability to adjust communication based on context or listener needs.
Challenges in adhering to conversational rules like turn-taking and rephrasing.
Difficulties in understanding implied meanings, ambivalence, humor, and idioms.
FUNCTIONAL LIMITATIONS
The deficits can lead to significant issues across communication, social participation, and academic performance, manifesting early in development. Symptoms cannot be attributed to other medical conditions or explained by other disorders such as ASD or intellectual disabilities.