Home > Papers from 2014 > Motion and the brain

Motion and the brain

Here are a pair of articles from the Bielefeld group. This group has, for many years, been looking at the perception of motion information for behaving animals in natural environments. Egalhaaf et al. provide a review of motion computation in the insect brain and how it is adapted to constraints of an insect’s behavioural requirements and environmental constraints. Schwegmann et al. present new data: a natural image statistics analysis of the information available to flying insects during their saccadic flight paths. It is found that rotations cause very large changes to images across brightness, contrast and spatial frequency. Translations only result in significant changes when there are nearby objects. These results, using natural images, align with the intuitive differences in visual input one would expect during rotation and translation. Taken together, we see the value in considering the visual systems of animals as part of the interaction between behaviour and the natural world.

Schwegmann A, Lindemann JP, Egelhaaf M (2014) Temporal Statistics of Natural Image Sequences Generated by Movements with Insect Flight Characteristics. PLoS ONE 9(10): e110386. doi:10.1371/journal.pone.0110386

Egelhaaf M, Kern R and Lindemann JP (2014) Motion as a source of environmental information: a fresh view on biological motion computation by insect brains. Front. Neural Circuits 8:127. doi: 10.3389/fncir.2014.00127

Categories: Papers from 2014
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