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Due to the effect of a spatial context or temporal context, the perceived orientation of a test line or grating pattern can appear tilted away from its physical orientation. The tilt illusion (TI) [ 1 ] is the phenomenon that the perceived orientation of a test line or grating is altered by the presence of surrounding lines or grating with a ...
Visible Speech is a system of phonetic symbols developed by British linguist Alexander Melville Bell in 1867 to represent the position of the speech organs in articulating sounds. Bell was known internationally as a teacher of speech and proper elocution and an author of books on the subject.
Speech generating device using a visual scene display, accessed using a head mouse. Visual scene displays are a different method of organizing and presenting symbols. These are depictions of events, people, objects, and related actions in a picture, photograph, or virtual environment representing a situation, place, or specific experience.
The highest proportion of adults with hearing loss have an age-related, or noise-related loss; with both of these forms of hearing loss, the high-frequency sounds are lost first. Since many of the consonants in speech are high-frequency sounds, speech becomes distorted. Hearing aids help but may not cure this.
People with lesions in the left hemisphere of the brain show a greater McGurk effect than normal controls. [12] Visual information strongly influences speech perception in these people. [12] There is a lack of susceptibility to the McGurk illusion if left hemisphere damage resulted in a deficit to visual segmental speech perception. [14]
Recent research investigating MDMA has revealed the neurotoxic effect of the drug on brain serotonin neurons. [1] [3] [6] [7] [8] Long term and potentially permanent changes to serotonergic axons have been noted in animal and primate studies where they were administered doses of MDMA similar to those taken by some human users.
Articulatory suppression is the process of inhibiting memory performance by speaking while being presented with an item to remember. Most research demonstrates articulatory suppression by requiring an individual to repeatedly say an irrelevant speech sound out loud while being presented with a list of words to recall shortly after.
Conductive hearing loss due to disorders of the middle ear shows as a flat increase in thresholds across the frequency range. Sensorineural hearing loss will have a contoured shape depending on the cause. Presbycusis or age-related hearing loss for example is characterized by a high frequency roll-off (increase in thresholds).