Spatial Perception in Imaging Methods

 

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  Uniklinikum Aachen, ITA

The systematic continuous development of reproduction methods of spatial acoustic scenarios are a focus of our research. Different methods have helped to achieve considerable progress particularly with regard to individually adapted stimulation, especially with regard to binaural reproduction (with headphones and loudspeakers). The basis for this is on the one hand the person-related measurement the so-called head-related-transfer-function (HRTF) (see Research Area\Binaural Technology) and adapted to this on the other hand a systematic distortion correction of the headphones applied.

The functional imaging in psychiatry, psychotherapy and psychosomatics attempts to continue to develop the established paradigms and to arrange them increasingly closer to reality. Whilst major progress has been made during the last decade in the optical and olfactory presentation of stimuli, the opportunities for acoustic stimulation continue to be clearly limited due to the headphone systems applied.

In this interdisciplinary research area we are investigating in close cooperation with JARA-BRAIN and the Forschungszentrum Jülich GmbH (Institut für Neurowissenschaften und Medizin, (Institute for Neuroscience and Medicine) Structural and functional Organization of the Brain (INM -1)) the systematic evaluation of the capacities of the existing systems for acoustic stimulation, their optimization and the identification of systematic weaknesses respectively in order to identify starting points for new developments.

We are researching in what quality acoustic stimulation for spatial perception in visualization processes can be conducted.