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A timer was set for detonation at 10:52 p.m. when the Air Lanka flight UL-122 was scheduled to reach Colombo International Airport. The aircraft was to leave Madras, India, at 8:10 p.m. that evening. The TEA's intention was to explode the bomb after the luggage was removed from the plane in Sri Lanke and dispatched to the cargo complex.
Published studies emphasize anxiety or stress as a primary cause while more recent literature indicates a likely physical etiology. [ citation needed ] This disorder has been observed from infancy through old age, with the observation of its occurrence in infants leading some to believe that a physiological cause such as reflux or allergy is ...
When a person prepares to speak, the vocal folds come together over the trachea and vibrate due to the airflow from the lungs. This mechanism produces the sound of the voice. If the vocal folds cannot meet together to vibrate, sound will not be produced. Aphonia can also be caused by and is often accompanied by fear. [4]
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Spasmodic dysphonia, also known as laryngeal dystonia, is a disorder in which the muscles that generate a person's voice go into periods of spasm. [1] [2] This results in breaks or interruptions in the voice, often every few sentences, which can make a person difficult to understand. [1]
A number of other causes for losing one's voice exist, and treatment is generally by resting the voice and treating the underlying cause. [2] If the cause is misuse or overuse of the voice, drinking plenty of water may alleviate the problems. [2] It appears to occur more commonly in females and the elderly. [4]
Neurological injury due to damage in the central or peripheral nervous system may result in weakness, paralysis, or a lack of coordination of the motor–speech system, producing dysarthria. [1] These effects in turn hinder control over the tongue, throat, lips or lungs; for example, swallowing problems ( dysphagia ) are also often present in ...
Another cause may be a medical condition impacting the physical structures involved in speech, for example, loss of voice due to the injury, paralysis, or illness of the larynx. [7] Anarthria is a severe form of dysarthria , in which the coordination of movements of the mouth and tongue or the conscious coordination of the lungs are damaged.