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Investigation of Sniffing as a Viable Measure of Odor Habituation in Mice

Description
Mammalian olfaction relies on active sniffing, which both shapes and is shaped by olfactory stimuli. Habituation to repeated exposure of an olfactory stimuli is believed to be mediated by decreased sniffing; however, this decrease may be reserved by exposure to novel odorants. Because of this, it may be possible to…

Mammalian olfaction relies on active sniffing, which both shapes and is shaped by olfactory stimuli. Habituation to repeated exposure of an olfactory stimuli is believed to be mediated by decreased sniffing; however, this decrease may be reserved by exposure to novel odorants. Because of this, it may be possible to use sniffing itself as a measure of novelty, and thus as a measure of odorant similarity. Thus, I investigated the use of sniffing to measure habituation, cross-habituation, and odorant similarity. During habituation experiments, increases in sniff rate seen in response to odorant presentation decreased in magnitude between the first and second presentations, suggesting of habituation. Some of this reduction in sniff rate increases was revered by the presentation of a novel odorant in cross-habituations. However the effect sizes in cross-habituation experiments were low, and the variability high, forestalling the conclusion that sniffing accurately measured cross-habituation. I discuss improvements to the experimental protocol that may allow for cross-habituation to be more accurately measured using sniffing alone in future experiments.
ContributorsVigayavel, Nirmal (Author) / Smith, Brian (Thesis director) / Sanabria, Federico (Committee member) / Gerkin, Rick (Committee member) / Barrett, The Honors College (Contributor)
Created2015-12

Lei_Spring_2023.pdf

ContributorsLei, Harry (Author) / Smith, Brian (Thesis director) / Albin-Brooks, Christopher (Committee member) / Barrett, The Honors College (Contributor)
Created2023-05
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Free antenna ELG.pdf

ContributorsLei, Harry (Author) / Smith, Brian (Thesis director) / Albin-Brooks, Christopher (Committee member) / Barrett, The Honors College (Contributor)
Created2023-05

The Effect of Active Sensing on Electroantenneagram and Electrolobulargram Response in Honeybess.pdf

ContributorsLei, Harry (Author) / Smith, Brian (Thesis director) / Albin-Brooks, Christopher (Committee member) / Barrett, The Honors College (Contributor)
Created2023-05

The Effect of Active Sensing on Odor Perception and Associative Learning in Honeybees

Description
Active sensing is a sensory phenomenon in which organisms use self-generated energy to examine their surroundings. This experiment strives to better understand active sensing in honeybees, predicting that active sensing may display itself primarily through antennae movement and that preventing antennae movement may result in differences in electroantennogram dose-response curves…

Active sensing is a sensory phenomenon in which organisms use self-generated energy to examine their surroundings. This experiment strives to better understand active sensing in honeybees, predicting that active sensing may display itself primarily through antennae movement and that preventing antennae movement may result in differences in electroantennogram dose-response curves and associative learning plasticity. This will be done by examining changes in amplitude in electroantennogram response in both fixed-antenna and free-antenna bees over the course of a differential training protocol that establishes learned behavior discrimination.
ContributorsLei, Harry (Author) / Smith, Brian (Thesis director) / Albin-Brooks, Christopher (Committee member) / Barrett, The Honors College (Contributor)
Created2023-05