scholarly journals Brief olfactory learning drives perceptive sensitivity in newborn rabbits: New insights in peripheral processing of odor mixtures and induction

2021 ◽  
Vol 229 ◽  
pp. 113217
Author(s):  
Patricia Duchamp-Viret ◽  
Jiasmine Boyer ◽  
Florian La Villa ◽  
Gérard Coureaud
Keyword(s):  
Olfactory Learning ◽  
Odor Mixtures ◽  
Peripheral Processing

scholarly journals Predictive olfactory learning in Drosophila

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chang Zhao ◽  
Yves F. Widmer ◽  
Sören Diegelmann ◽  
Mihai A. Petrovici ◽  
Simon G. Sprecher ◽  
...  
Keyword(s):  
Synaptic Plasticity ◽  
Dopaminergic Neurons ◽  
Mushroom Body ◽  
Trace Conditioning ◽  
Fruit Fly ◽  
Olfactory Learning ◽  
Shock Strength ◽  
Behavioral Experiments ◽  
Kenyon Cells ◽  
Output Neurons

AbstractOlfactory learning and conditioning in the fruit fly is typically modelled by correlation-based associative synaptic plasticity. It was shown that the conditioning of an odor-evoked response by a shock depends on the connections from Kenyon cells (KC) to mushroom body output neurons (MBONs). Although on the behavioral level conditioning is recognized to be predictive, it remains unclear how MBONs form predictions of aversive or appetitive values (valences) of odors on the circuit level. We present behavioral experiments that are not well explained by associative plasticity between conditioned and unconditioned stimuli, and we suggest two alternative models for how predictions can be formed. In error-driven predictive plasticity, dopaminergic neurons (DANs) represent the error between the predictive odor value and the shock strength. In target-driven predictive plasticity, the DANs represent the target for the predictive MBON activity. Predictive plasticity in KC-to-MBON synapses can also explain trace-conditioning, the valence-dependent sign switch in plasticity, and the observed novelty-familiarity representation. The model offers a framework to dissect MBON circuits and interpret DAN activity during olfactory learning.

scholarly journals NPY/NPF-Related Neuropeptide FLP-34 Signals from Serotonergic Neurons to Modulate Aversive Olfactory Learning in Caenorhabditis elegans

2020 ◽  
Vol 40 (31) ◽  
pp. 6018-6034
Author(s):  
Melissa Fadda ◽  
Nathan De Fruyt ◽  
Charline Borghgraef ◽  
Jan Watteyne ◽  
Katleen Peymen ◽  
...  
Keyword(s):  
Caenorhabditis Elegans ◽  
Olfactory Learning ◽  
Serotonergic Neurons

Glomerular activation patterns and the perception of odor mixtures

2008 ◽  
Vol 27 (10) ◽  
pp. 2676-2685 ◽  
Author(s):  
Kimberly J. Grossman ◽  
Atul K. Mallik ◽  
Jessica Ross ◽  
Leslie M. Kay ◽  
Naoum P. Issa
Keyword(s):  
Activation Patterns ◽  
Odor Mixtures

scholarly journals Perinatal Olfactory Learning in the Domestic Dog

2005 ◽  
Vol 31 (3) ◽  
pp. 207-212 ◽  
Author(s):  
Peter G. Hepper ◽  
Deborah L. Wells
Keyword(s):  
Olfactory Learning ◽  
Domestic Dog

scholarly journals Age Differences in Central (Semantic) and Peripheral Processing: The Importance of Considering Both Response Times and Errors

2004 ◽  
Vol 59 (5) ◽  
pp. P210-P219 ◽  
Author(s):  
P. A. Allen ◽  
M. D. Murphy ◽  
M. Kaufman ◽  
K. E. Groth ◽  
A. Begovic
Keyword(s):  
Age Differences ◽  
Response Times ◽  
Peripheral Processing
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