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Perirhinal input to neocortical layer 1 controls learning
- Source :
- Science
- Publication Year :
- 2019
- Publisher :
- Cold Spring Harbor Laboratory, 2019.
-
Abstract
- Memory consolidation in the neocortex Information transfer between brain structures located in the medial-temporal lobe and the neocortex is essential for learning. However, the neuronal underpinnings of this transfer are unknown. Doron et al. found that neurons located in the deep layers of the perirhinal cortex exhibit increased firing after microstimulation upon learning (see the Perspective by Donato). Learning was associated with the emergence of a small population of neurons in layer 5 of the somatosensory cortex that increased bursting upon stimulation. This increase in bursting was accompanied by an increase in dendritic activity, and silencing the perirhinal cortex to layer 1 projection effectively disrupted learning and its physiological correlates. During learning, perirhinal inputs thus act as a gate for the enhancement of cortico-cortical inputs, which are necessary for stimulus detection and are strengthened during learning. Science , this issue p. eaaz3136 ; see also p. 1410
- Subjects :
- Male
0301 basic medicine
Population
Hippocampus
Mice, Transgenic
Neocortex
Sensory system
Optogenetics
Biology
Hippocampal formation
Inhibitory postsynaptic potential
03 medical and health sciences
Bursting
0302 clinical medicine
Perirhinal cortex
Memory formation
medicine
Microstimulation
Animals
Learning
Tuft
Rats, Wistar
Layer (object-oriented design)
education
030304 developmental biology
Perirhinal Cortex
0303 health sciences
education.field_of_study
Multidisciplinary
Chemistry
Pyramidal Cells
Dendrites
Associative learning
Mice, Inbred C57BL
030104 developmental biology
medicine.anatomical_structure
nervous system
Neuroscience
030217 neurology & neurosurgery
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Science
- Accession number :
- edsair.doi.dedup.....98e050488b5e5e9820679dc7dba838e8
- Full Text :
- https://doi.org/10.1101/713883