TY - JOUR
T1 - The relationship between nature of social change, age, and position of new neurons and their survival in adult zebra finch brain
AU - Adar, Einat
AU - Nottebohm, Fernando
AU - Barnea, Anat
N1 - Copyright:
Copyright 2009 Elsevier B.V., All rights reserved.
PY - 2008/5/14
Y1 - 2008/5/14
N2 - Some kinds of neurons are spontaneously recruited in the intact, healthy adult brain, but the variables that affect their survival are not always clear.Weshow that in caudal nidopallium of adult male zebra finches, the rostrocaudal position of newly recruited neurons, their age (1 vs 3 months), and the nature of social change (complex vs simple) after the neurons were born affect their survival. Greater social complexity promoted the survival of younger new neurons, and the demise of older ones; a less marked social change promoted the survival of older new neurons. These effects were position dependent. We suggest that functional correlations between new neuron recruitment/survival and its inferred benefit to the animal might be better perceived when taking into account the position of cells, their age at the time of life style changes, and the nature and magnitude of the life style change.
AB - Some kinds of neurons are spontaneously recruited in the intact, healthy adult brain, but the variables that affect their survival are not always clear.Weshow that in caudal nidopallium of adult male zebra finches, the rostrocaudal position of newly recruited neurons, their age (1 vs 3 months), and the nature of social change (complex vs simple) after the neurons were born affect their survival. Greater social complexity promoted the survival of younger new neurons, and the demise of older ones; a less marked social change promoted the survival of older new neurons. These effects were position dependent. We suggest that functional correlations between new neuron recruitment/survival and its inferred benefit to the animal might be better perceived when taking into account the position of cells, their age at the time of life style changes, and the nature and magnitude of the life style change.
KW - Adult brain
KW - Information load
KW - Neuronal age
KW - Neuronal replacement
KW - Nidopallium caudale
KW - Songbirds
UR - http://www.scopus.com/inward/record.url?scp=45549100894&partnerID=8YFLogxK
U2 - 10.1523/JNEUROSCI.5706-07.2008
DO - 10.1523/JNEUROSCI.5706-07.2008
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C2 - 18480295
AN - SCOPUS:45549100894
SN - 0270-6474
VL - 28
SP - 5394
EP - 5400
JO - Journal of Neuroscience
JF - Journal of Neuroscience
IS - 20
ER -