Motion vision has been extensively characterised in Drosophila melanogaster, but
substantially less is known about how flies process colour, or how spectral information …

Motion vision has been extensively characterised in Drosophila melanogaster, but
substantially less is known about how flies process colour, or how spectral information …

This thesis addresses two aspects of visual processing in two different invertebrate
organisms. The fruit fly, Drosophila melanogaster, has emerged as a key model for …

A limitation of current methods for examining neural activity over long periods of time in the
fly, Drosophila melanogaster, is the need to remove the head cuticle and the underlying …

Neural implementations of visual behaviors in Drosophila have been dissected intensively
in the past couple of decades. The availability of premiere genetic toolkits, behavioral …

Spectral information is commonly processed in the brain through generation of antagonistic
responses to different wavelengths. In many species, these color opponent signals arise as …

Understanding how activity patterns in specific neural circuits coordinate an animal's
behavior remains a key area of neuroscience research. Genetic tools and a brain of …

Animals navigating in natural environments must handle vast changes in their sensory input.
Visual systems, for example, handle changes in luminance at many timescales, from slow …

Abstract Changes in luminance over space and time drive visual behaviors across species.
Thus, sensitivity to luminance changes or contrast is fundamental to visual perception …

Visual stimulation of animals in the laboratory is a powerful technique for studying sensory
control of complex behaviors. Since commercial displays are optimized for human vision, we …