Results 61 to 70 of about 9,473,872 (308)

Neuronal sequences during theta rely on behavior-dependent spatial maps

eLife, 2021
Navigation through space involves learning and representing relationships between past, current, and future locations. In mammals, this might rely on the hippocampal theta phase code, where in each cycle of the theta oscillation, spatial representations ...
Eloy Parra-Barrero, Kamran Diba, Sen Cheng   +2 more
doaj   +1 more source

From grid cells and visual place cells to multimodal place cell: a new robotic architecture

Frontiers in Neurorobotics, 2015
In the present study, a new architecture for the generation of grid cells (GC) was implemented on a real robot. In order to test this model a simple place cell (PC) model merging visual PC activity and GC was developed. GC were first built from a simple "several to one" projection (similar to a modulo operation) performed on a neural field coding for ...
Jauffret, Adrien, Cuperlier, Nicolas, Gaussier, Philippe   +2 more
openaire   +3 more sources

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben, Marisa H. Huisman, Martha A. Grootenhuis, Femke K. Aarsen, Marita Partanen   +4 more
wiley   +1 more source

Theta-modulated place-by-direction cells in the hippocampal formation in the rat [PDF]

, 2004
We report the spatial and temporal properties of a class of cells termed theta-modulated place-by-direction (TPD) cells recorded from the presubicular and parasubicular cortices of the rat. The firing characteristics of TPD cells in open-field enclosures
Wills, TJ, Lever, C, Burgess, N, O'Keefe, J, Cacucci, F   +4 more
core  

A cellular hierarchy of Notch and Kras signaling controls cell fate specification in the developing mouse salivary gland

, 2023
The development of the mouse salivary gland involves a tip-driven process of branching morphogenesis that takes place in concert with differentiation into acinar, myoepithelial, and ductal (basal and luminal) sub -line-ages.
Bonkyoung Koo, Bordeu, Ignacio, Han, Seungmin, Alcolea, Maria P., Waheed, Zahra, Chatzeli, Lemonia, Simons, Benjamin D., Bisetto, Sara   +7 more
core   +1 more source

The Impact of the COVID‐19 Pandemic on Childhood Cancer Survival: A Population‐Based Assessment of Survival Patterns Between 2015 and 2023 in Germany

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann, Maike Wellbrock, Javier Louro, Arndt Borkhardt, Martin Schrappe, Claudia Trübenbach, Desiree Grabow, Cécile M. Ronckers, Joachim Schüz   +8 more
wiley   +1 more source

Chemotaxis: a feedback-based computational model robustly predicts multiple aspects of real cell behaviour [PDF]

, 2011
The mechanism of eukaryotic chemotaxis remains unclear despite intensive study. The most frequently described mechanism acts through attractants causing actin polymerization, in turn leading to pseudopod formation and cell movement.
Haastert, Peter J.M. van,, Peter J M van Haastert, van Haastert, Peter J. M., van Haastert, Peter J.M., Matthew P. Neilson, Douwe M Veltman, Webb, Steven D., Insall, Robert H., Webb, Steven D.,, Neilson, Matthew P.,, Neilson, Matthew P., Matthew P Neilson, Douwe M. Veltman, Peter J. M. van Haastert, Insall, Robert H.,, Steven D Webb, Webb, Steven, Robert H Insall, John A. Mackenzie, Mackenzie, John A.,, John A Mackenzie, Veltman, Douwe M.,, Mackenzie, John A., Veltmahn, Douwe M., Veltman, Douwe M., Steven D. Webb, Robert H. Insall   +26 more
core   +5 more sources

Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari, Regina Hadi Putri, Fatimah Assyifa, Judith Spijkerman, Gertjan Johannes Kaspers, Susi Susanah   +5 more
wiley   +1 more source

Global remapping emerges as the mechanism for renewal of context-dependent behavior in a reinforcement learning model

Frontiers in Computational Neuroscience
IntroductionThe hippocampal formation exhibits complex and context-dependent activity patterns and dynamics, e.g., place cell activity during spatial navigation in rodents or remapping of place fields when the animal switches between contexts ...
David Kappel, Sen Cheng
doaj   +1 more source

Environmental deformations dynamically shift the grid cell spatial metric

eLife, 2018
In familiar environments, the firing fields of entorhinal grid cells form regular triangular lattices. However, when the geometric shape of the environment is deformed, these time-averaged grid patterns are distorted in a grid scale-dependent and local ...
Alexandra T Keinath, Russell A Epstein, Vijay Balasubramanian   +2 more
doaj   +1 more source