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Laminar structure of spontaneous and sensory-evoked population activity in…
Laminar structure of spontaneous and sensory-evoked population activity in auditory cortex
spont vs evoked
similarities
activity in layers
2/3
:small_red_triangle: PY cells
sparse
spatially localized :black_small_square:
5
densely distributed :black_large_square:
PY and putative IN :small_red_triangle: :small_blue_diamond:
reflect
local porcessing
distinctions
spreading
spontaneous
up :arrow_up: deep layers
slowly across columns
evoked
between cortical columns
thalamorecipient layers
reflect
flow of information in circuits
:warning:These laminar structures of population activity held under both anesthetized and unanesthetized conditions.
:question:
putative
Introduction
metrics
sparseness
:arrow_forward: sparse representation
dense representation :arrow_backward:
spontaneous activity
states
up :chart_with_upwards_trend:
down :chart_with_downwards_trend:
intracortical
sensory
from thalamus to
(in AudCrtx)
L 3 and L4
L5/6 border
methods
anesthesia
U
unan
cell types
juxtacells
PCs
L2/3
N10
L6
N6
L4
PCs - dominant
N10
L5
slender :red_circle:<2.5 μm
N19
thick apical dendrite :red_circle: >2.5 μm
N9
extracells
(SUA on silicone probe)
4 groups
superficial PCs
deep PCs
superficial INs
deep INs
