Differential rearing effects on rat visual cortex synapses. III. Neuronal and glial nuclei, boutons, dendrites, and capillaries

  title={Differential rearing effects on rat visual cortex synapses. III. Neuronal and glial nuclei, boutons, dendrites, and capillaries},
  author={Anita M. Sirevaag and William T. Greenough},
  journal={Brain Research},
Induction of Multiple Synapses by Experience in the Visual Cortex of Adult Rats
Apparent tendency to reutilize presynaptic processes may indicate a constraint upon the formation of neural circuitry and a fundamental form of plastic synaptic change in adult rats following 60 days of housing in standard laboratory cages or in complex environments.
Juvenile emotional experience alters synaptic inputs on pyramidal neurons in the anterior cingulate cortex.
It is demonstrated that early traumatic emotional experience alters synaptic input of pyramidal neurons in Octodon degus animals and such experience-induced modulation of limbic cortex development may determine psychosocial and cognitive capacities during later life.
Lesion size‐dependent synaptic and astrocytic responses in cortex contralateral to infarcts in middle‐aged rats
Findings are consistent with those in younger rats indicating an inverse relationship between lesion size and adaptive neuronal restructuring in denervated cortex, but indicate that the synaptogenic reaction to this lesion is relatively limited in older animals.
Synaptogenesis and FOS Expression in the Motor Cortex of the Adult Rat after Motor Skill Learning
The data suggest that Fos may be involved in the biochemical processes underlying skill acquisition and that motor learning, as opposed to motor activity, leads to increases in synapse number in the motor cortex.
Structural plasticity of optic synapses in the rat suprachiasmatic nucleus: adaptation to long-term influence of light and darkness
It appears that (1) the amount of postsynaptic density material is proportional to the strength of Gray-type I synapses, and that (2) some excitatory optic synapses become inhibitory after long-term activity, whereas some inhibitory synapses turn into exciteful contacts afterLong-term disuse.
Laminar-Dependent Dendritic Spine Alterations in the Motor Cortex of Adult Rats Following Callosal Transection and Forced Forelimb Use
Callosal denervation may greatly enhance the neuronal growth and synaptogenic response to behavioral change in layer V, but it may also limit spine addition associated with forced forelimb use in layer II/III of the motor cortex.
Cholinergic innervation in adult rat cerebral cortex: A quantitative immunocytochemical description
A method for determining the length of acetylcholine (ACh) axons and number of ACh axon varicosities (terminals) in brain sections immunostained for choline acetyltransferase (ChAT) was used to


The effect of monocular deprivation on the synaptic contacts of the visual cortex.
The effect of visual deprivation on synaptic contacts in the visual cortex was studied with the electron microscope and the mean density of synapses supplied by the deprived eye was 20% less than on the control side, the upper levels of the cortex being more affected.
Effects of neonatal transection on glial cell development in the rat optic nerve: evidence that the oligodendrocyte-type 2 astrocyte cell lineage depends on axons for its survival
It is concluded that axons are required for the survival of cells of the oligodendrocytes-type 2 astrocyte lineage, at least during postnatal development.
Brief bursts of high-frequency stimulation produce two types of structural change in rat hippocampus.
It appears that brief bursts of highfrequency stimulation produce two very different types of structural change: 1) an apparent increase in the number of shaft synapses, and 2) a decrease in the variability of the dendritic spines.