scholarly journals Pretrial hippocampal θ-state differentiates single-unit response profiles during rabbit trace eyeblink conditioning

2015 ◽  
Vol 22 (7) ◽  
pp. 318-322 ◽  
Author(s):  
Joseph J. Cicchese ◽  
Ryan D. Darling ◽  
Stephen D. Berry
Keyword(s):  
Single Unit ◽  
Eyeblink Conditioning ◽  
Unit Response ◽  
Response Profiles ◽  
Trace Eyeblink Conditioning ◽  
Single Unit Response

scholarly journals Infragranular barrel cortex activity is enhanced with learning

2012 ◽  
Vol 108 (5) ◽  
pp. 1278-1287 ◽  
Author(s):  
Rebekah L. Ward ◽  
Luke C. Flores ◽  
John F. Disterhoft
Keyword(s):  
Single Unit ◽  
Barrel Cortex ◽  
Eyeblink Conditioning ◽  
Sensory Cortex ◽  
Learning Criterion ◽  
Extracellular Recordings ◽  
Primary Sensory Cortex ◽  
Whisker Stimulation ◽  
Trace Eyeblink Conditioning

The barrel cortex (BC) is essential for the acquisition of whisker-signaled trace eyeblink conditioning and shows learning-related expansion of the trained barrels after the acquisition of a whisker-signaled task. Most previous research examining the role of the BC in learning has focused on anatomic changes in the layer IV representation of the cortical barrels. We studied single-unit extracellular recordings from individual neurons in layers V and VI of the BC as rabbits acquired the whisker-signaled trace eyeblink conditioning task. Neurons in layers V and VI in both conditioned and pseudoconditioned animals robustly responded to whisker stimulation, but neurons in conditioned animals showed a significant enhancement in responsiveness in concert with learning. Learning-related changes in firing rate occurred as early as the day of learning criterion within the infragranular layers of the primary sensory cortex.

scholarly journals Validating a Population Model of Tactile Mechanotransduction of Slowly Adapting Type I Afferents at Levels of Skin Mechanics, Single-Unit Response and Psychophysics

2014 ◽  
Vol 7 (2) ◽  
pp. 216-228 ◽  
Author(s):  
Gregory J. Gerling ◽  
Isabelle I. Rivest ◽  
Daine R. Lesniak ◽  
Jacob R. Scanlon ◽  
Lingtian Wan
Keyword(s):  
Population Model ◽  
Single Unit ◽  
Unit Response ◽  
Type I ◽  
Skin Mechanics ◽  
Single Unit Response

Hearing in Mice by GSR Audiometry: I. Magnitude of Unconditioned GSR as an Index of Frequency Sensitivity

1968 ◽  
Vol 11 (1) ◽  
pp. 159-168 ◽  
Author(s):  
Charles I. Berlin ◽  
Alan Gill ◽  
Martha Leffler
Keyword(s):  
Single Unit ◽  
Response Curve ◽  
Unit Response ◽  
Frequency Sensitivity ◽  
Auditory Systems ◽  
Valid Index ◽  
Fourth Experiment ◽  
Screening Device ◽  
Single Unit Response

Three experiments show that the magnitude of the unconditioned GSR to tones of equal intensity is largest between 10,000 and 20,000 Hz and is a valid index of the frequency sensitivity of the mouse. These findings agree well with cochlear potential findings and single unit response areas, and suggest that the magnitude of the unconditioned GSR might be used as a screening device for frequency sensitivity. A fourth experiment, studying responses of humans to a similar regiment of 100 dB SPL tones, showed a relatively flat response curve unrelated to frequency sensitivity and more closely related to equal loudness contouring. Habituation of the unconditioned GSR in the human was more rapid than in the mouse, suggesting marked differences between the species in either the auditory systems and/or the mechanisms of auditory inhibition and GSR excitation.

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