Intro arrow 0. Left & Right Brain arrow 0.6 Auditory Dominance
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0. Left & Right Brain
1. Masking Alpha Channel
2. Rods & Cones
3. LGN: Magno & Parvo
4. SC: Superior Colliculus
5. Primary Visual Cortex
6. Dorsal - Ventral Stream
7. Eye Movements
8. Oculomotor System
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0.6 Auditory Dominance

Cerebral dominance and language


Right handers

98% are left hemisphere dominant

Left handers

60% are left hemisphere dominant
30% are right hemisphere dominant
10% are mixed dominance


Left hemisphere - Right ear

  • Processes speech sounds.
  • A strong built in response to rapid sound changes.


Right hemisphere - Left ear

  • Handles changes in tone. 
  • Preferation for tones. 


The left-hemisphere is considered to posses verbal intelligence, the complete lexicon and rules of syntax. Right-hemisphere-damaged patients, seldom have difficulties with phonology, syntax, or semantics, and will carry on a conversation which at first glance seems normal. It would seem that the left hemisphere is the ‘seat of language’.

Although over time, evidence has shown that the right-hemisphere, owns a number of very subtle ‘linguistic’ functions which are virtually synonymous with ‘poetry’ or ‘poetic’ speech. Indeed, one could assert that the degree of right-hemispheric involvement in language is what differentiates ‘poetic’ or ‘literary’ from ‘referential’ or ‘technical’ speech and texts. (source: Poetry As Right-Hemispheric Language)

Auditory Dominance and Its Change in the Course of Development


Young children often have a preference for auditory input, with auditory input often overshadowing visual input. The current research investigated the developmental trajectory and factors underlying these effects with 137 infants, 132 four-year-olds, and 89 adults. Auditory preference reverses with age: Infants demonstrated an auditory preference, 4-year-olds switched between auditory and visual preference, and adults demonstrated a visual preference. Furthermore, younger participants were likely to process stimuli only in the preferred modality, thus exhibiting modality dominance, whereas adults processed stimuli in both modalities. Finally, younger participants ably processed stimuli presented to the nonpreferred modality when presented in isolation, indicating that auditory and visual stimuli may be competing for attention early in development. Underlying factors and broader implications of these findings are discussed.(source: - pdf )

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