🔅Stuttering is a speech disorder that affects the fluency and rhythm of speech.
– People who stutter may repeat, prolong, or block sounds, syllables, or words when they speak. They may also show signs of physical tension or struggle, such as blinking, trembling, or avoiding eye contact.
– Stuttering can interfere with communication, social interaction, education, and career opportunities. It can also cause emotional distress, such as anxiety, frustration, or low self-esteem.
🔅 CAUSES OF STUTTERING
– The exact causes of stuttering are not fully understood, but they are likely to involve a combination of factors, such as:
Genetics
– Stuttering tends to run in families and may be influenced by inherited traits that affect the structure and function of the brain regions involved in speech production.
Neurophysiology
–Stuttering may be related to differences in the way the brain processes speech and language, such as abnormal activation of the speech muscles, impaired coordination of the speech organs, or reduced auditory feedback.
Development
– Stuttering may occur as a normal part of speech and language development in young children, especially between the ages of 2 and 5, when they are learning new words and sounds. Most children outgrow this phase, but some may continue to stutter if they have other risk factors.
Environment
– Stuttering may be influenced by external factors that affect speech and language learning, such as stress, emotions, expectations, attitudes, or reactions from others. These factors may trigger or worsen stuttering in some situations or make it easier in others.
🔅 DIAGNOSIS
– Stuttering can be diagnosed and treated by speech-language pathologists (SLPs), who are professionals trained to evaluate and help people with speech and language disorders. There are different types of stuttering therapy available for children and adults who stutter, depending on their needs and goals.
– Some examples of stuttering therapy are:
1). Fluency shaping therapy
– This therapy aims to teach people who stutter how to speak more fluently by using techniques such as slow and smooth speech, controlled breathing, gentle voice onset, and reduced tension. The goal is to modify the way speech is produced and reduce the frequency and severity of stuttering.
2). Stuttering modification therapy
– This therapy focuses on helping people who stutter cope with their stuttering and reduce their negative feelings and behaviors associated with it. _The goal is to modify the way stuttering is perceived and reacted to by using techniques such as identifying and accepting stuttering moments, reducing avoidance and struggle, and using voluntary stuttering or pull-outs (stopping and restarting a word smoothly).
3). Cognitive behavioral therapy (CBT)
– This is a type of psychotherapy that helps people who stutter change their thoughts and beliefs that may contribute to their stuttering problem. The goal is to modify the way stuttering is thought about and dealt with by using techniques such as identifying and challenging negative thoughts, setting realistic goals, practicing positive self-talk, and exposing oneself to feared speaking situations.
4). Electronic devices
– These are devices that can enhance fluency by altering the way people who stutter hear their own voice. Some examples are: delayed auditory feedback (DAF), which delays the sound of one's voice by a fraction of a second; frequency altered feedback (FAF), which changes the pitch of one's voice; and masking auditory feedback (MAF), which adds background noise to mask one's voice. These devices may help reduce stuttering by creating a choral effect (speaking in unison with someone else) or distracting attention from one's speech.
Stuttering therapy can help people who stutter improve their speech fluency, communication skills, confidence, and quality of life.
– However, there is no cure for stuttering and it may not eliminate all stuttering completely. The effectiveness of stuttering therapy may vary depending on individual factors such as age, severity, motivation, compliance, and support. Therefore, it is important to consult with an SLP to find the best treatment approach for each person who stutters.
DELAYED AUDITORY FEEDBACK (DAF)
– DAF is a type of altered auditory feedback that consists of extending the time between speech and auditory perception. It can consist of a device that enables a user to speak into a microphone and then hear their voice in headphones a fraction of a second later.
– DAF has been shown to induce fluency in many individuals who stutter, though not all stutterers experience enhanced fluency by this technique. Early investigators suggested and have continually been proven correct in assuming that those who stutter had an abnormal speech–auditory feedback loop that was corrected or bypassed while speaking under DAF.
– In people who stutter with atypical auditory anatomy, DAF improves fluency, but not in those with typical anatomy.
– DAF is also used with people who clutter. Its effects are slowing of speech which can result in increased fluency for people who clutter and also syllable awareness.
– DAF can also have interesting effects on people who do not stutter, such as reducing the rate of speech, increasing the intensity and pitch of the voice, and causing repetitions, mispronunciations, omissions, and artificial stuttering.
– These effects are often referred to as "the DAF effect"; or "the choral effect". Studies have found that the delay required for maximum disruption decreases with age, and that younger children are less affected by DAF than older children or adults.
– DAF devices are used in speech perception experiments to demonstrate the importance of auditory feedback in speech production and perception.
– They are also used as electronic fluency devices to help people who stutter or clutter improve their speech fluency and confidence. There are different types of DAF devices available, such as hardware devices, computer software, or mobile apps.
– Some DAF devices may also combine other types of altered auditory feedback, such as frequency-altered feedback (FAF) or masking auditory feedback (MAF), to enhance the fluency effects.
