David G. C. Hildebrand

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The automated tape-collecting ultramicrotome (ATUM) makes it possible to collect large numbers of ultrathin sections quickly-the equivalent of a petabyte of high resolution images each day. However, even high throughput image acquisition strategies generate images far more slowly (at present ~1 terabyte per day). We therefore developed WaferMapper, a(More)
As the size of image data from microscopes and telescopes increases, the need for high-throughput processing and visualization of large volumetric data has become more pressing. At the same time, many-core processors and GPU accelerators are commonplace, making high-performance distributed heterogeneous computing systems affordable. However, effectively(More)
BACKGROUND The nucleus accumbens (NAc) plays a key role in brain reward processes including drug seeking and reinstatement. Several anatomical, behavioral, and neurochemical studies discriminate between the limbic-associated shell and the motor-associated core regions. Less studied is the fact that the shell can be further subdivided into a dorsomedial(More)
The thalamus receives input from multiple brain systems and has an essential role in controlling brain state. This is thought to occur primarily because of its connectivity with the forebrain. Here, we provide evidence for an additional mechanism. By calcium imaging of larval zebrafish, we show that two stimuli – light and darkness-trigger distinct activity(More)
Neuroscience research projects often use intracranial (IC) microinfusions to target drug delivery to specific brain areas during behavioral testing. These experiments require accurate and precisely-timed delivery of small volumes. We present here a stepper motor-powered micropump assembly for such delivery. This system is hands-free, does not use a(More)
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