ArticleThe Journal of experimental biology2011
Environmental complexity, seasonality and brain cell proliferation in a weakly electric fish, Brachyhypopomus gauderio.
Article in The Journal of experimental biology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
21 citing papers in PubMed, 49 citations in OpenAlex.
- Executive functioning in wild guppies: investigating the impact of a pharmaceutical pollutant.Animal cognition · 2026Article
- Differential captivity and experiential conditions and its impact on the behaviour and cognition of Picasso triggerfish (Rhinecanthus aculeatus).Animal cognition · 2026Article
- Simple life, simple minds? How habitat simplification in aquatic ecosystems shape fish cognition.Animal cognition · 2026Review
- Early-life environmental enrichment promotes positive animal welfare for juvenile Atlantic salmon (Salmo salar) in aquaculture research.Scientific reports · 2025Article
- The effects of early-life and intergenerational stress on the brain.Proceedings. Biological sciences · 2023Article
- Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar.Journal of fish biology · 2022Article
- Physical Enrichment Triggers Brain Plasticity and Influences Blood Plasma Circulating miRNA in Rainbow Trout (Biology · 2022Article
- The Long-Term Public Health Impact of Social Distancing on Brain Health: Topical Review.International journal of environmental research and public health · 2021Review
- Understanding fish cognition: a review and appraisal of current practices.Animal cognition · 2021Review
- Environmental Enrichment Improved Learning and Memory, Increased Telencephalic Cell Proliferation, and Induced Differential Gene Expression inFrontiers in pharmacology · 2020Article
- Validation of hippocampal biomarkers of cumulative affective experience.Neuroscience and biobehavioral reviews · 2019Review
- Small-scale environmental enrichment and exercise enhance learning and spatial memory of Carassius auratus, and increase cell proliferation in the telencephalon: an exploratory study.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2019Article
- Neurobiology of Wild and Hatchery-Reared Atlantic Salmon: How Nurture Drives Neuroplasticity.Frontiers in behavioral neuroscience · 2018Article
- Cell Proliferation, Migration, and Neurogenesis in the Adult Brain of the Pulse Type Weakly Electric Fish,Frontiers in neuroscience · 2017Article
- Adult Neurogenesis in Fish.Cold Spring Harbor perspectives in biology · 2016Review
- Predators inhibit brain cell proliferation in natural populations of electric fish, Brachyhypopomus occidentalis.Proceedings. Biological sciences · 2016Article
- Toward a neurology of loneliness.Psychological bulletin · 2014Review
- Spatial distribution and cellular composition of adult brain proliferative zones in the teleost, Gymnotus omarorum.Frontiers in neuroanatomy · 2014Article
- Influence of long-term social interaction on chirping behavior, steroid levels and neurogenesis in weakly electric fish.The Journal of experimental biology · 2013Review
- Characterization of cell proliferation throughout the brain of the African cichlid fish Astatotilapia burtoni and its regulation by social status.The Journal of comparative neurology · 2012Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 2 countries.
Funding
Abstract
Environmental complexity and season both influence brain cell proliferation in adult vertebrates, but their relative importance and interaction have not been directly assessed. We examined brain cell proliferation during both the breeding and non-breeding seasons in adult male electric fish, Brachyhypopomus gauderio, exposed to three environments that differed in complexity: (1) a complex natural habitat in northern Uruguay, (2) an enriched captive environment where fish were housed socially and (3) a simple laboratory setting where fish were isolated. We injected fish with BrdU 2.5 h before sacrifice to label newborn cells. We examined the hindbrain and midbrain and quantified the density of BrdU+ cells in whole transverse sections, proliferative zones and two brain nuclei in the electrocommunication circuitry (the pacemaker nucleus and the electrosensory lateral line lobe). Season had the largest effect on cell proliferation, with fish during the breeding season having three to seven times more BrdU+ cells than those during the non-breeding season. Although the effect was smaller, fish from a natural environment had greater rates of cell proliferation than fish in social or isolated captive environments. For most brain regions, fish in social and isolated captive environments had equivalent levels of cell proliferation. However, for brain regions in the electrocommunication circuitry, group-housed fish had more cell proliferation than isolated fish, but only during the breeding season (season × environment interaction). The regionally and seasonally specific effect of social environment on cell proliferation suggests that addition of new cells to these nuclei may contribute to seasonal changes in electrocommunication behavior.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.