Associative learning changes cross-modal representations in the gustatory cortex
- State University of New York at Stony Brook, United States
Figures
Figure 1 with 1 supplement
Neural representation of different sensory modalities in GC of untrained rats.
(A) Percentage of neurons (n = 135) modulated (excited [gray] or inhibited [white]) by each stimulus. Odor and somatosensory (air puff) stimuli modulate a larger number of neurons compared to tone …
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Figure 1—source data 1
Percentage of GC neurons responding to cross-modal and gustatory stimuli in untrained rats.
- https://doi.org/10.7554/eLife.16420.004
Figure 1—figure supplement 1
Electrodes placement and experimental design for the group of untrained rats.
(A) Schematic representation of a coronal section of rat’s brain highlighting the dorso-ventral range of recording and electrodes placement in the gustatory cortex for the right (light blue) and …
Figure 2 with 1 supplement
Associative learning for different cross-modal stimuli.
(A) Left most panel: Average time course of orofacial movements evoked by cross-modal cues and sucrose during the first (gold) and 14th (cyan) day of classical conditioning (n = 5 rats). Shaded grey …
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Figure 2—source data 1
Values of the orofacial movements evoked by the cross-modal stimuli.
- https://doi.org/10.7554/eLife.16420.007
Figure 2—figure supplement 1
Experimental design for cue-taste association experiments and assessment of conditioned responses.
(A) Schematic of the experimental design used for cue-taste Pavlovian classical conditioning. Red bars highlight stimulus delivery. Between cue-offset and the delivery of sucrose there is a delay of …
Figure 3 with 2 supplements
Neural representation of different sensory modalities after cue-taste association.
(A) Percentage of neurons (n = 118) modulated (excited [gray] or inhibited [white]) by each tastants and anticipatory cues. Asterisks indicate post-hoc test corrected for multiple comparisons …
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Figure 3—source data 1
Percentage of GC neurons responding to cross-modal and gustatory stimuli in trained rats.
- https://doi.org/10.7554/eLife.16420.010
Figure 3—figure supplement 1
Electrode placement and experimental design for the group of trained rats.
(A) Schematic representation of a coronal section of rat’s brain highlighting the dorso ventral range of recording and electrodes placement in the gustatory cortex for the right (light blue) and …
Figure 3—figure supplement 2
The neural bias for somatosensory and olfactory stimuli does not depend on the number of sessions at final performance level.
(A) Percentage of GC neurons modulated by cross-modal stimuli after matching the number of recording session at final performance level. (B) Distribution of the number of cross-modal neurons across …
Figure 4
Comparison of cross-modal GC responsiveness between untrained and trained animals.
(A) Percentage of GC neurons that are modulated by cross-modal stimuli in untrained (blue) and trained (black) rats. (B) Percentage of taste selective GC neurons that are modulated only by tastants …
Figure 5
Time course of GC responses in the groups of trained and untrained rats.
(A) Population plot of all GC neurons modulated by at least one cross-modal stimulus in untrained (left panel) and in trained (right panel) rats. Each row represents a GC neuron. The color of each …
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Figure 5—source data 1
Fraction and percentage of GC neurons excited or inhibited by the cross-modal cues.
- https://doi.org/10.7554/eLife.16420.015
Figure 6
Coding of different sensory modalities for untrained and trained rats.
(A) Time course of the classification performance for cross-modal stimuli in the group of untrained rats. (B) Time course of the classification performance for cross-modal anticipatory cues in the …
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Figure 6—source data 1
Average and standard error of 'correct' and 'false' hits.
- https://doi.org/10.7554/eLife.16420.017
