How neurons detect the direction of motion is a prime example of neural computation:
Motion vision is found in the visual systems of virtually all sighted animals, it is important for …

The visual world offers a variety of information that enables animals to orient themselves to
their surroundings. One specific feature of the visual information is the wavelength difference …

Fruit flies of the genus Drosophila have been an attractive and effective genetic model
organism since Thomas Hunt Morgan and colleagues made seminal discoveries with them …

Golgi studies of the neurons in the optic lobes of Drosophila melanogaster reveal a large
number of neuronal cell types. These can be classified as either columnar or tangential …

Optokinetic and phototactic behaviors of zebrafish larvae were examined for their usefulness
in screening for recessive defects in the visual system. The optokinetic response can be …

The characteristic wavelength at which a visual pigment absorbs light is regulated by
interactions between protein (opsin) and retinylidene Schiff base chromophore. By using site …

The eyes absent (eya) gene is required at an early stage in development of the D.
melanogaster compound eye. In eya mutants, progenitor cells in the eye disc undergo …

We have used PCR to identify 13 novel protein-tyrosine kinase genes (tyro-1 to-13), six of
which (tyro-1 to-6). are preferentially expressed in the developing vertebrate nervous …

The mec. 3 gene is essential for proper differentiation of the set of six touch receptor neurons
in C. elegans. In mutants lacking mec. 3 activity, the touch receptors express none of their …

Phototaxis behavior is commonly observed in animals with light-sensing organs. C. elegans,
however, is generally believed to lack phototaxis, as this animal lives in darkness (soil) and …