ArticleJournal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology2008
Influence of sex steroid hormones on spatial memory in a songbird.
Article in Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
8 citing papers in PubMed, 31 citations in OpenAlex.
- Connecting the Dots: Potential Interactions Between Sex Hormones and the Circadian System During Memory Consolidation.Journal of biological rhythms · 2023Article
- Rapid effects of estradiol on aggression depend on genotype in a species with an estrogen receptor polymorphism.Hormones and behavior · 2018Article
- Sex, estradiol, and spatial memory in a food-caching corvid.Hormones and behavior · 2015Article
- The importance of neural aromatization in the acquisition, recall, and integration of song and spatial memories in passerines.Hormones and behavior · 2015Review
- Sex Differences in Spatial Memory in Brown-Headed Cowbirds: Males Outperform Females on a Touchscreen Task.PloS one · 2015Article
- Context-specific effects of estradiol on spatial learning and memory in the zebra finch.Neurobiology of learning and memory · 2013Article
- Modulation of NR1 subunit of N-methyl-D-aspartate receptor by ovariectomy and passive avoidance learning.Iranian journal of neurology · 2012Article
- Rapid effects of aggressive interactions on aromatase activity and oestradiol in discrete brain regions of wild male white-crowned sparrows.Journal of neuroendocrinology · 2011Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 3 institutions in 3 countries.
Funding
Abstract
In mammals, sex steroid hormones influence spatial learning and memory abilities but there are few data regarding such effects in birds. We investigated whether non-invasive sex steroid hormone treatment would affect spatial memory task performance of great tits (Parus major). For five consecutive days, birds were fed wax moth larvae injected with either 80 microg testosterone or 80 microg estradiol carried in peanut oil immediately prior to behavioral testing. During the 5 days prior to and the 5 days following hormone treatment, birds were fed vehicle-injected larvae. Both hormone manipulations resulted in an elevation of circulating hormone levels within 5 min of larva ingestion. This elevation was sustained for at least 30 min but had no short-term (<1 day) effect on spatial memory performance. However, performance tended to increase during the first 5 days of vehicle treatment and during both sex steroid treatments whereas it decreased during the 5 days of vehicle treatment following either hormone treatment. These results suggest that both hormones led to some improvement in spatial memory that declined once treatment ended. The great tit hippocampus was found to express androgen and estrogen receptors which would provide a direct site of sex steroid action.
Indexed as
Identifiers
What OpenQuestion holds
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.