The paper reports on an experiment conducted to investigate the nature of speech sound perception in terms of cross-modal mappings between vowel sound stimuli and colour spectrum associations. The study is based on the assumptions stemming from research on synaesthesia, sound symbolism and non-modularity of human perception. The findings indicate that vowel-sound mappings appear non-arbitrary i...

Sound is a widely available and vital cue in aquatic environments, yet most bioacoustic research has focused on marine vertebrates, leaving sound detection in invertebrates poorly understood. Cephalopods are an ecologically key taxon that likely use sound and may be impacted by increasing anthropogenic ocean noise, but little is known regarding their behavioral responses or adaptations to sound...

Rainer Guski Dept. of Psychology, Ruhr-University Bochum, Germany [email protected] Abstract The systematic analysis of the perception of audiovisual synchrony has shown that auditory delays are tolerated to a certain extent in synchrony judgments, but the variation of spatial separation between light and sound has brought conflicting results: While Lewald & Guski (2003) did not find a...

Corticofugal modulation on activity of the medial geniculate body (MGB) was examined by locally activating the primary auditory cortex (AI) and looking for effects on the onset responses of MGB neurons to acoustic stimuli. Of 103 MGB neurons recorded from 13 hemispheres of 11 animals, 91 neurons (88%) showed either a facilitatory or inhibitory effect or both; of these neurons, 72 showed facilit...

The Mongolian gerbil (Meriones unguiculatus) has become a key species in investigations of the neural processing of sound localization cues in mammals. While its sound localization has been tested extensively under free-field stimulation, many neurophysiological studies use headphones to present signals with binaural localization cues. The gerbil's behavioral sensitivity to binaural cues, howev...

23 24 Accurate sound localization is based on three acoustic cues (interaural time and intensity 25 difference, and spectral cues from directional filtering by the pinna). In natural listening 26 conditions, every spatial position of a sound source provides a unique combination of 27 these 3 cues in “natural alignment”. Although neurons in the central nucleus of the 28 inferior colliculus (ICC)...

Abstract What sound quality has led to exclude infrasound from in the conventional hearing range? We examined whether temporal segregation of pressure pulses is a distinctive property and evaluated this perceptual limit via an adaptive psychophysical procedure for pure tones carriers different envelopes. Further, examine across-domain similarity individual covariation limit, here called critica...