Introduction: The plethora of studies indicated that there is a cross talk relationship between harmaline and serotonergic (5-HT) system on cognitive and non-cognitive behaviors. Thus, the purpose of this study is to assess the effects of hippocampal 5-HT4 receptor on memory acquisition deficit induced by harmaline.  Methods: Harmaline was injected peritoneally, while 5-HT4 receptor ago...

Institute of Molecular and Cellular Anatomy, Ulm University, Ulm, Germany, Institute of Anatomy and Cell Biology, Faculty of Medicine, Albert-Ludwigs-University, Freiburg, Germany, Institute of Applied Physiology, Ulm University, Ulm, Germany, Institute of Physiology and Pathophysiology, Heidelberg University, Heidelberg, Germany, School of Biomedical Sciences, Li Ka Shing Faculty of Medicine, ...

The hippocampal formation (HF) plays a crucial role in amniote spatial cognition. There are also indications of functional lateralization in the contribution of the left and right HF in processes that enable birds to navigate space. The experiments described in this study were designed to examine left and right HF differences in a task of sun compass-based spatial learning in homing pigeons (Co...

1 School of Nursing, Federal University of Goiás, Brazil. 2 Ribeirão Preto School of Nursing, University of São Paulo, Brazil. 3 School of Nursing, University of Pernambuco, Brazil. 4 São Paulo Hospital, Federal University of São Paulo, Brazil. 5 Unicastelo, University of São Paulo, Brazil. 6 College of Pharmacy, Federal University of Sergipe, Brazil. 7 Ribeirão Preto School of Nursing, Univers...

Objective . Investigate whether the disruption of normal hippocampal rhythms via optogenetic stimulation medial septum (MS) during late postnatal development has enduring effects on allocentric memory rat pups. Methods Hippocampal theta oscillations were non-endogenously regulated in pups using blue light (465-nm) pan-neuronal activation MS from day (P)21–25 random sinewave frequencies ranging ...

based on both animal and human studies, inequality in food intake and social instability has adverse effects on the health of individuals and the community. however, it is not known whether social instability, food deprivation and food inequality affect neuronal death and premature aging in young animals. to address this question, the effects of these adverse situations, histopathological chang...

The cover image is based on the Research Article Calretinin and calbindin architecture of midline thalamus associated with prefrontal-hippocampal circuitry by Tatiana D. Viena et al., https://doi.org/10.1002/hipo.23271.

Long ago, since 1951, Lyra proposed a modification of Riemannian geometry. Based on the Lyra's modification on Riemannian geometry, Sen and Dunn constructed a field equation which is analogous to Einstein's field equations. Further more, Sen and Dunn gave series type solution to the static vacuum field equations. Retaining only a few terms, we have shown that their solutions correspond to black...