Causes of Speech Disorders
Causes of Speech Disorders
Causes of Speech Disorders
DISORDERS
VOICE:
Any difficulty in producing voice is termed as voice
disorders. The prevalence rate is 3% and 9% (Ramig
& Verdolini, 1998). Voice disorders occurs when
voice quality, pitch and loudness differ or are
inappropriate for an individual’s age, gender,
cultural background or geographical location.
A number of different systems are used for
classifying voice disorders. For the purposes of this
document, voice disorders are categorized as
follows:
• Organic — voice disorders that are physiological
in nature and result from alterations in
respiratory, laryngeal, or vocal tract mechanisms
• Structural — organic voice disorders that
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