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MSc Verena Conrad

 

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Verena Conrad

Position: PhD Student  Unit: Alumni Bülthoff Alumni Noppeney Alumni Ernst

Processes of perceptual inference are most prominent in multistable perception when the brain alternates between several equally probable perceptual explanations such as in the vase-face illusion, Necker cube or binocular rivalry. Under normal viewing conditions the central nervous system resolves the uncertainty of sensory cues seemingly effortlessly and usually derives an accurate perceptual representation. However, often the percept represents only one out of multiple possible hypotheses about the state of the world and is rapidly revised in the light of new evidence that might contradict a current prediction. In psychophysics research we use multistable phenomena (e.g. binocular rivalry, ambiguous figures) to investigate processes of perceptual decision-making under uncertainty. Multistable perception is used as a paradigm for investigating crossmodal interactions – illustrating how cues from multiple sensory modalities can be employed to infer the underlying causes of multistable visual input.

Multisensory integration in multistable perception

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Articles (5):

Aller M, Giani A, Conrad V, Watanabe M and Noppeney U (February-2015) A spatially collocated sound thrusts a flash into awareness Frontiers in Integrative Neuroscience 9(16) 1-8.
Conrad V, Kleiner M, Bartels A, Hartcher O'Brien J, Bülthoff HH and Noppeney U (August-2013) Naturalistic Stimulus Structure Determines the Integration of Audiovisual Looming Signals in Binocular Rivalry PLoS ONE 8(8) 1-8.
Conrad V, Vitello MP and Noppeney U (August-2012) Interactions Between Apparent Motion Rivalry in Vision and Touch Psychological Science 23(8) 940-948.
Conrad V, Bartels A, Kleiner M and Noppeney U (August-2010) Audiovisual interactions in binocular rivalry Journal of Vision 10(10:27) 1-15.
Welchman AE, Deubelius A, Conrad V, Bülthoff HH and Kourtzi Z (May-2005) 3D shape perception from combined depth cues in human visual cortex Nature Neuroscience 8(6) 820-827.
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Posters (7):

Delong P, Giani A, Aller M, Rohe T, Conrad V, Watanabe M and Noppeney U (April-10-2017): The invisible ventriloquist: can unaware flashes alter sound perception?, BNA 2017 Festival of Neuroscience (British Neuroscience Association), Birmingham, UK, Brain and Neuroscience Advances, 1(BNA 2017 Festival of Neuroscience: Abstract Book) 27.
Conrad V, Kleiner M, Hartcher-O‘Brien J, Bartels A, Bülthoff HH and Noppeney U (June-2010): Audio-visual interactions in binocular rivalry using the Shepard illusion in the auditory and visual domain, 11th International Multisensory Research Forum (IMRF 2010), Liverpool, UK.
Conrad V, Bartels A, Kleiner M and Noppeney U (July-2009): Auditory influences on the temporal dynamics of binocular rivalry, 10th International Multisensory Research Forum (IMRF 2009), New York, NY, USA.
Conrad V, Vuong QC and Ernst MO (August-2007): Spatio-temporal grouping in perceptual rivalry, 30th European Conference on Visual Perception, Arezzo, Italy, Perception, 36(ECVP Abstract Supplement) 87.
Conrad V, Vuong QC and Ernst MO (July-2007): Spatio-Temporal Grouping in Perceptual Rivalry, 10th Tübinger Wahrnehmungskonferenz (TWK 2007), Tübingen, Germany.
Conrad V, McDonald JS and Schultz J (August-2006): Breaking the stability of perceptual instability: Temporal dynamics of ambiguous figure reversal and interference from distractor patterns, 29th European Conference on Visual Perception, St. Petersburg, Perception, 35(ECVP Abstract Supplement) 101-102.
Corad V, Kourtzi Z and Welchman A (March-2006): Breaking the Stability of Perceptual Instability: Adaptation and Priming in Ambiguous Figure Perception, 9th Tübingen Perception Conference (TWK 2006), Tübingen, Germany.

Talks (2):

Noppeney U, Adam R, Sadaghiani S, Maier JX, Lee HL, Werner S, Ostwald D, Lewis R and Conrad V (June-20-2012) Abstract Talk: Different classes of audiovisual correspondences are processed at distinct levels of the cortical hierarchy, 13th International Multisensory Research Forum (IMRF 2012), Oxford, UK, Seeing and Perceiving, 25(0) 69.
Conrad V, Vitello MP and Noppeney U (June-19-2012) Abstract Talk: Interactions between apparent motion rivalry in vision and touch, 13th International Multisensory Research Forum (IMRF 2012), Oxford, UK, Seeing and Perceiving, 25(0) 26-27.

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Last updated: Monday, 22.05.2017