Publications
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Automatic relational stimulus processing Ghent University
Hierarchical stimulus processing in rodent primary and lateral visual cortex as assessed through neuronal selectivity and repetition suppression KU Leuven
Similar to primates, visual cortex in rodents appears to be organized in two distinct hierarchical streams. However, there is still little known about how visual information is processed along those streams in rodents. In this study, we examined how repetition suppression and position and clutter tolerance of the neuronal representations evolve along the putative ventral visual stream in rats. To address this question, we recorded multiunit ...
Configural and featural processing during face perception : a new stimulus set KU Leuven
A new stimulus set of 60 male-face stimuli in seven in-depth orientations was developed. The set can be used in research on configural versus featural mechanisms of face processing. Configural, or holistic, changes are produced by changing the global form of the face, whereas featural, or part-based, changes are attained by altering the local form of internal facial features. For each face in the set, there is one other face that differs only by ...
Recent Visual Experience Shapes Visual Processing in Rats Through Stimulus Specific Adaptation and Response Enhancement KU Leuven
From an ecological point of view, it is generally suggested that the main goal of vision in rats and mice is navigation and (aerial) predator evasion [1-3]. The latter requires fast and accurate detection of a change in the visual environment. An outstanding question is whether there are mechanisms in the rodent visual system that would support and facilitate visual change detection. An experimental protocol frequently used to investigate change ...
Dynamic interplay between reward and voluntary attention determines stimulus processing in visual cortex Ghent University
Reward enhances stimulus processing in the visual cortex, but the mechanisms through which this effect occurs remain unclear. Reward prospect can both increase the deployment of voluntary attention and increase the salience of previously neutral stimuli. In this study, we orthogonally manipulated reward and voluntary attention while human participants performed a global motion detection task. We recorded steady-state visual evoked potentials to ...
The Facial Expressive Action Stimulus Test. A test battery for the assessment of face memory, face and object perception, configuration processing and facial expression recognition KU Leuven
There are many ways to assess face perception skills. In this study, we describe a novel task battery FEAST (Facial Expressive Action Stimulus Test) developed to test recognition of identity and expressions of human faces as well as stimulus control categories. The FEAST consists of a neutral and emotional face memory task, a face and shoe identity matching task, a face and house part-to-whole matching task, and a human and animal facial ...