On the right scent

Article Abstract:

A novel search algorithm is developed that might help engineers in designing efficient olfactory tracking robots, which are normally used for detecting chemical leaks, drugs and explosives. The search scheme has relied on a probability map of source location that is estimated from the available sensory information, the history of detection and non-detection events.

France, Analysis, Genetic algorithms

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Innate versus learned odour processing in the mouse olfactory bulb

Article Abstract:

Mutant mice in which olfactory sensory neurons in a specific area of the olfactory epithelium are ablated by targeted expression of the diphtheria toxin gene are generated to study odour perception in mammalian olfactory system. The odour specific responses in the mice brain are mediated by two separate sets of glomeruli, for innate and learned responses.

Genetic aspects, Mice, mutant strains, Mutant mice, Instinct

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Timing is everything

Article Abstract:

A specific predictive mechanism is described that has operated during olfactory learning in locusts. The bidirectional nature of spike-timing-dependent plasticity (STDP) has provided a means for avoiding the expected loss of temporal precision as information has propagated through oscillating sparse networks.

Physiological aspects, Locusts, Locusts (Insects), Computational neuroscience

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