Speech and language disorders
These deficits affect the individual's communication with their surroundings.
Communication involves the exchange of information, ideas and emotions amongst humans. It requires abilities of comprehension and expression in the oral and written medium. There also exist types of non-verbal communication.
Communication is necessary for a normal and fulfilling life. Communication disorders can affect individuals of every age.
When there are communication deficits, these can affect:
- Learning,
since this becomes difficult and stressful and as a result the child's achievement and progress in school is negatively affected.
- Relationships
between the individual and others in the environment.
- The independence
of the individual in terms of expressing their needs as well as in terms of making decisions leading to a fulfilling life.
- The serenity
of the individual.
The Speech Therapist can deal with language deficits in both children and adults.
- Language deficits in Children
- Delayed Language Development
The child with a language delay progresses through the basic developmental stages of syntax, grammar and vocabulary, use and comprehension of language but with a certain delay in comparison to other children of the same age.
- Language Disorders
The child presenting with language disorders does not progress through the basic developmental stages of syntax, grammar and vocabulary and generally the use and comprehension of language. On the contrary, the child uses "his own" independent rules and as a result is unintelligible within his environment.
- Learning Difficulties
The difficulties observed in the learning process of school age children.
- Language deficits in Adults:
- Aphasia
Aphasia in adults is characterised by loss (partial or total) or disorganisation of language after a stroke or injury.
Difficulties manifest in expression and comprehension of oral and written language.
- Cognitive-Linguistic Disorders
Cognitive-linguistic disorders present in individuals who have suffered a head injury (e.g. car accident) or other brain insults. The most common difficulties involve memory, attention, lexicon, orientation, adaptation to the environment and processing and analysis of information (written or oral).
- Articulation Disorders
Articulation disorders involve the disturbance of speech where the organs, responsible for speech (lips, tongue and soft palate), are systematically used incorrectly for the production of sounds.
These deficits include substitutions, omissions and distortions of sounds, as well as simplifications of clusters.
- Dysarthria
Dysarthria is the speech disorder where there is partial lack of coordination of breathing, articulation, voicing and prosody due to neuromuscular disorders.
- Apraxia
Apraxia is the difficulty in performing the movements responsible for speech production intentionally and/or following instruction.
Difficulty in the programming of movements of speech organs is observed, despite the fact that muscle tone is normal.
- Stuttering
Stuttering is the speech disorder which affects the rhythm, speed and prosody/melody of speech. It presents as a difficulty in the initiation of sound (blocking), repetitions of sounds, syllables or words, prolongation of sounds and avoidances.
- Dysphonia (Voice Disorders)
Dysphonia is the disturbance regarding the pitch, intensity and quality of voice. Depending on the cause (e.g. nodules, polyps etc) dysphonia in adults and/or the child is characterised by total voice loss (aphonia), roughness, diplophonia, very low or very high pitch and voice breaks.
Causes attributed to Disorders of Speech and Language:
These include:
- Hearing Problems (hearing impairment, otitis)
- Brain Paralysis
- Cognitive Impairment
- Neurological Disorders
- Brain Injury
- Cerebral Vascular Accidents (stroke)
- Memory Deficits
- Attention Deficits
- Anatomical Abnormalities of Speech Organs
- Incorrect Use of Voice
- Emotional Disturbances
- Environmental Factors