Thorsten Hinrichs

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The concept of affordances as a function-centered view on perception might show to have great potential when being adapted in the field of autonomous robotic systems. Being embedded in the MACS project that aims at evaluating this potential and at proving the usefulness and applicability of affordances, this thesis will tackle the part of developing a robot(More)
Plasticity of the adult human brain and motor recovery after stroke Plasticity of the adult human brain and motor recovery after stroke 2 Abstract Stroke may cause a major destruction of brain tissue through a loss of blood supply and leads to a functional impairment of the lesioned area. This paper looks at the usefulness of neural networks in providing(More)
In natural behaviour we actively attend to parts of a visual scene by moving our eyes. Models of such overt attention combine different local features in a bottom‐up process. Here, we empirically study this integration process and investigate the interaction of luminance, luminance contrast, texture contrast, edges and colour contrast during(More)
The majority of formal approaches to analogy models analogies as structure preserving mappings from source to target domain. Bipin Indurkhya developed a formal theory of analogies and cognitive processes in general, where source and target are represented as concept networks, which are special kinds of algebras. The relation between them is modeled as an(More)
The self-organizing map (SOM) is an unsupervised learning algorithm successful both in applications like data mining or visualization, and in explaining the creation of topological maps in the brain, like the primary sensory areas of the cortex. The standard SOM algorithm operates on fixed-size input vectors. So, it cannot be directly applied to structured(More)
It is an important function of attention to direct our sensory organs towards objects of interest. Recent studies elucidate the relation between selected fixations of the eye and statistical properties of the visual stimulus (Reinagel & Zandor, 1999; Parkhurst et al., 2002; Einhäuser & König, 2003). Remarkably, other modalities are equally effective in(More)
When visually exploring the environment, humans sequentially direct their gaze to distinct points in that scene. Thus, vision happens by taking samples from the visual environment. Bottom-up approaches of vision hold low-level image features responsible for the selection of fixation points. Occurrences of edges, corners and junctions have shown to correlate(More)
Humans perceive their natural environment by directing their gaze subsequently at small locations around them. Many researchers investigate what attracts this attention by recording eye movements of subjects while they are viewing two dimensional images on a computer screen. It was suggested that image features like luminance and texture contrast guide(More)
This Bachelor’s Thesis took place in the range of the POP-project (IST-2005-27268) as parts of WP4.3 aiming to develop a setup to simultaneously perform Eyetracking and EEG under free viewing conditions. Because the project is not finished, I will provide an overview about the progress at the time I finished my Bachelor’s Thesis. I will provide details(More)