Distinct cortical areas associated with native and second languages

Article Abstract:

Scientists have used functional magnetic resonance imaging to identify how the brain assimilates multiple languages. Native and second language maps are established from images of the human cortex. The images demonstrate that second languages activate a different area of the frontal-lobe language-sensitive regions than first languages if the second language has been learnt during adulthood. However, the brains of people who have learnt two languages during early language development exibit activity in the same area of cortex.

Research, Language acquisition, Brain mapping

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Auditory distance perception in rooms

Article Abstract:

Two experiments are presented to demonstrate a simple model, based on a modified direct-to-reverberant energy ratio, to explain the 'auditory horizon' in distance perception. The model indicates that two sources of information are combined by listeners when estimating sound source distances in a room, direct perceptual information and indirect information. The model can be used to identify the minimum amount of reflections.

Observations, Auditory perception, Directional hearing, Sound localization

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