Global motion coherence and the temporal correlation hypothesis: a psychophysical and physiological investigation
4РП — Обучение и мобилност на изследователи
- Период
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- Финансиране от ЕС
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- Участници
- 1
- Схема
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Линиите свързват координатора с партньорите.
Накратко на български
Връзката между отделните визуални елементи се изследва чрез промяна в контраста на движещи се обекти. Това помага да се разбере как мозъкът обединява разпръснатата информация в един цялостен образ на околния свят.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Цел на проекта
Research objectives and content Objective: To evaluate psychophysically the Temporal Correlation Hypothesis (TCH; Singer & Gray, 1995) as a solution to the so-called 'binding problem'. The binding problem is how to explain our coherent perception of the visual world when its many features are cortically represented in a distributed manner. The TCH posits that features belonging to common objects cause bursts of correlated neural activity which provide a temporal structure for unifying the distributed cortical response into coherently bound percepts. Despite a good deal of supporting physiological evidence, physiology alone is insufficient to evaluate the TCH: psychophysical data are needed to assess its perceptualclaims. Thus, this project aims to provide relevant perceptual data using a novel psychophysical method developed by the applicant in his current laboratory (Alais & Blake, 1997). This method involves rapid contrast modulation of moving elements, which promotes coherent global motion when correlated and local motion when uncorrelated. It is proposed that correlated contrast modulation produces a related cortical modulation, so that correlated modulation of the elements creates the temporal structure which binds the elements into a global percept. Training content (objective, benefit and expected impact) Training content: Collaborative projects in multi-cell neurophysiology and fMRI will provide training for the applicant in new fields of neuroscience. These projects arise from related interests in the host laboratory concerning the TCH and will provide the applicant with training in new areas of neuroscience which will supplement his strong background in psychophysics. The obtained data will demonstrate the cortical response to contrast modulating stimuli, and with the perceptual data, provide a promising means to evaluate the TCH. Links with industry / industrial relevance (22)
Оригинален текст от CORDIS (на английски).
Участници
- Aristotle University of Thessaloniki · ThessalonikiКоординаторГърция
Връзки
Данни: CORDIS, © Европейски съюз