干旱区生态环境知识资源中心(Arid): Sociability, but not spatial memory, is correlated with regional brain volume variation in the striped mouse Rhabdomys spp.

Arid

DOI	10.1016/j.bbr.2021.113567
	Sociability, but not spatial memory, is correlated with regional brain volume variation in the striped mouse Rhabdomys spp.
	Neves, Candice Nikita; Pillay, Neville
通讯作者	Pillay, N (corresponding author), Univ Witwatersrand, Sch Anim Plant & Environm Sci, 1 Jan Smuts Ave,Private Bag 3, ZA-2050 Johannesburg, South Africa.
来源期刊	BEHAVIOURAL BRAIN RESEARCH
ISSN	0166-4328
EISSN	1872-7549
出版年	2022
卷号	417
英文摘要	Local environmental conditions associated with different geographic areas may elicit variations in behavioural responses in animals, leading to concomitant differences in functional brain region volumes. We investigated the behavioural correlates of hippocampus and amygdala volumes in three sister taxa of the murid rodent genus Rhabdomys, occurring in different environments. We used a Barnes maze to test spatial memory, dyadic encounters to test social behaviour, and histological brain sections to calculate hippocampus and amygdala volumes. Arid-occurring R. pumilio made fewer errors and had shorter latencies in locating the escape tunnel compared to moist grassland-occurring R. d. dilectus and R. d. chakae in two probe trials, 48 and 96 h after the last learning trial. R. pumilio was more amicable than the R. dilectus subspecies in intra-specific dyadic encounters. R. pumilio had larger hippocampus and amygdala volumes than the other species. Smaller amygdala volumes were correlated with longer latencies in females for probe trial 1, but males showed similar latencies regardless of taxon. Higher amicability scores were correlated with larger amygdala volumes in all taxa. Higher amicability scores were correlated with larger hippocampus volumes in R. pumilio and R. d. chakae but smaller hippocampus volumes in R. d. dilectus. Correlative relationships between spatial memory and amygdala volume appeared 48 h, but not 96 h, after the last learning trial. Local environmental conditions may influence spatial navigation, but social correlates drive regional brain size within cryptic striped mouse taxa.
英文关键词	Rhabdomys Spatial memory Sociability Hippocampus Amygdala
类型	Article
语种	英语
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000703732600003
WOS关键词	LONG-TERM POTENTIATION ; BASOLATERAL AMYGDALA ; SOCIAL RECOGNITION ; SEX-DIFFERENCES ; POPULATION DIFFERENCES ; DORSAL HIPPOCAMPUS ; MEDIAL AMYGDALA ; WORKING-MEMORY ; SPACE-USE ; BEHAVIOR
WOS类目	Behavioral Sciences ; Neurosciences
WOS研究方向	Behavioral Sciences ; Neurosciences & Neurology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/362688
作者单位	[Neves, Candice Nikita; Pillay, Neville] Univ Witwatersrand, Sch Anim Plant & Environm Sci, 1 Jan Smuts Ave,Private Bag 3, ZA-2050 Johannesburg, South Africa
推荐引用方式 GB/T 7714	Neves, Candice Nikita,Pillay, Neville. Sociability, but not spatial memory, is correlated with regional brain volume variation in the striped mouse Rhabdomys spp.[J],2022,417.
APA	Neves, Candice Nikita,&Pillay, Neville.(2022).Sociability, but not spatial memory, is correlated with regional brain volume variation in the striped mouse Rhabdomys spp..BEHAVIOURAL BRAIN RESEARCH,417.
MLA	Neves, Candice Nikita,et al."Sociability, but not spatial memory, is correlated with regional brain volume variation in the striped mouse Rhabdomys spp.".BEHAVIOURAL BRAIN RESEARCH 417(2022).