Neuronal recruitment in adult zebra finch brain during a reproductive cycle

Barkan, Shay; Ayali, Amir; Nottebohm, Fernando; Barnea, Amir

doi:10.1002/dneu.20379

Cited by 24 publications

(24 citation statements)

References 75 publications

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“…However, this had already been tested and proven to be the case in three previous studies (Lipkind et al, 2002;Barnea et al, 2006;Barkan et al, 2007) for all three brain regions. Moreover, a previous study from our laboratory further confirmed this outcome for NC, this time by using tissue which was treated with the neuronal marker Hu, just as was done with our present material (M. Pnini, L. Lotem, F. Nottebohm, and A. Barnea, unpublished data).…”

Section: Methodsmentioning

confidence: 93%

The Relationship between Nature of Social Change, Age, and Position of New Neurons and Their Survival in Adult Zebra Finch Brain

Adar¹,

Nottebohm²,

Barnea³

2008

J. Neurosci.

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Some kinds of neurons are spontaneously recruited in the intact, healthy adult brain, but the variables that affect their survival are not always clear. We show 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.

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Section: Methodsmentioning

confidence: 93%

The Relationship between Nature of Social Change, Age, and Position of New Neurons and Their Survival in Adult Zebra Finch Brain

Adar¹,

Nottebohm²,

Barnea³

2008

J. Neurosci.

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“…Adult neuron addition has been studied in HVC, Area X in the AFP, and the auditory region NCM (Lipkind et al, 2002; Barnea et al, 2006; Barkan et al, 2007; Adar et al, 2008b). However, the most intensive study has focused on HVC, with particular interest in the replacement of HVC neurons that project to RA.…”

Section: Neuronal Attributes That Co-vary With Song Attributesmentioning

confidence: 99%

The relationship of neurogenesis and growth of brain regions to song learning

Kirn

2010

Brain and Language

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Song learning, maintenance and production require coordinated activity across multiple auditory, sensory-motor, and neuromuscular structures. Telencephalic components of the sensory-motor circuitry are unique to avian species that engage in song learning. The song system shows protracted development that begins prior to hatching but continues well into adulthood. The staggered developmental timetable for construction of the song system provides clues of subsystems involved in specific stages of song learning and maintenance. Progressive events, including neurogenesis and song system growth, as well as regressive events such as apoptosis and synapse elimination, occur during periods of song learning and the transitions between stereotyped and variable song during both development and adulthood. There is clear evidence that gonadal steroids influence the development of song attributes and shape the underlying neural circuitry. Some aspects of song system development are influenced by sensory, motor and social experience, while other aspects of neural development appear to be experience-independent. Although there are species differences in the extent to which song learning continues into adulthood, growing evidence suggests that despite differences in learning trajectories, adult refinement of song motor control and song maintenance can require remarkable behavioral and neural flexibility reminiscent of sensory-motor learning.

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“…In both bird orders neuronal recruitment occurs in the HA (current study; Hoshooley et al, 2005), HC (current study; Barnea and Nottebohm, 1994), Medial striatum (former named Lobus parolfactorius - LPO; Alvarez-Buylla et al, 1994; Ling et al, 1997), NC (Ling et al, 1997; Barkan et al, 2007) and NCL (current study; Barkan et al, 2014). However, other brain regions exhibit neuronal recruitment in one of the two above orders, but are less developed or absent in the other.…”

Section: Discussionmentioning

confidence: 65%

Exploring the Relationship between Brain Plasticity, Migratory Lifestyle, and Social Structure in Birds

2017

Self Cite

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Studies in Passerines have found that migrating species recruit more new neurons into brain regions that process spatial information, compared with resident species. This was explained by the greater exposure of migrants to spatial information, indicating that this phenomenon enables enhanced navigational abilities. The aim of the current study was to test this hypothesis in another order—the Columbiformes – using two closely-related dove species—the migrant turtle-dove (Streptopelia turtur) and the resident laughing dove (S. senegalensis), during spring, summer, and autumn. Wild birds were caught, treated with BrdU, and sacrificed 5 weeks later. New neurons were recorded in the hyperpallium apicale, hippocampus and nidopallium caudolaterale regions. We found that in doves, unlike passerines, neuronal recruitment was lower in brains of the migratory species compared with the resident one. This might be due to the high sociality of doves, which forage and migrate in flocks, and therefore can rely on communal spatial knowledge that might enable a reduction in individual navigation efforts. This, in turn, might enable reduced levels of neuronal recruitment. Additionally, we found that unlike in passerines, seasonality does not affect neuronal recruitment in doves. This might be due to their non-territorial and explorative behavior, which exposes them to substantial spatial information all year round. Finally, we discuss the differences in neuronal recruitment between Columbiformes and Passeriformes and their possible evolutionary explanations. Our study emphasizes the need to further investigate this phenomenon in other avian orders and in additional species.

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Neuronal recruitment in adult zebra finch brain during a reproductive cycle

Cited by 24 publications

References 75 publications

The Relationship between Nature of Social Change, Age, and Position of New Neurons and Their Survival in Adult Zebra Finch Brain

The Relationship between Nature of Social Change, Age, and Position of New Neurons and Their Survival in Adult Zebra Finch Brain

The relationship of neurogenesis and growth of brain regions to song learning

Exploring the Relationship between Brain Plasticity, Migratory Lifestyle, and Social Structure in Birds

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