Results 1 to 10 of about 5,380 (216)

A Review of Neurologgers for Extracellular Recording of Neuronal Activity in the Brain of Freely Behaving Wild Animals

open access: yesMicromachines, 2022
Simultaneous monitoring of animal behavior and neuronal activity in the brain enables us to examine the neural underpinnings of behaviors. Conventionally, the neural activity data are buffered, amplified, multiplexed, and then converted from analog to ...
Kaoru Ide, Susumu Takahashi
doaj   +1 more source

Macrophage morphological plasticity and migration is Rac signalling and MMP9 dependant

open access: yesScientific Reports, 2021
In vitro, depending on extracellular matrix (ECM) architecture, macrophages migrate either in amoeboid or mesenchymal mode; while the first is a general trait of leukocytes, the latter is associated with tissue remodelling via Matrix Metalloproteinases ...
Jana Travnickova   +6 more
doaj   +1 more source

Spatial cognition and the avian hippocampus: Research in domestic chicks

open access: yesFrontiers in Psychology, 2022
In this review, we discuss the functional equivalence of the avian and mammalian hippocampus, based mostly on our own research in domestic chicks, which provide an important developmental model (most research on spatial cognition in other birds relies on
Anastasia Morandi-Raikova, Uwe Mayer
doaj   +1 more source

Hippocampus Maintains a Coherent Map Under Reward Feature–Landmark Cue Conflict

open access: yesFrontiers in Neural Circuits, 2022
Animals predominantly use salient visual cues (landmarks) for efficient navigation. When the relative position of the visual cues is altered, the hippocampal population exhibits heterogeneous responses and constructs context-specific spatial maps ...
Indrajith R. Nair   +2 more
doaj   +1 more source

‘Fearful-place’ coding in the amygdala-hippocampal network

open access: yeseLife, 2021
Animals seeking survival needs must be able to assess different locations of threats in their habitat. However, the neural integration of spatial and risk information essential for guiding goal-directed behavior remains poorly understood.
Mi-Seon Kong   +6 more
doaj   +1 more source

Rapid learning of predictive maps with STDP and theta phase precession

open access: yeseLife, 2023
The predictive map hypothesis is a promising candidate principle for hippocampal function. A favoured formalisation of this hypothesis, called the successor representation, proposes that each place cell encodes the expected state occupancy of its target ...
Tom M George   +3 more
doaj   +1 more source

Mechanisms for Cognitive Impairment in Epilepsy: Moving Beyond Seizures

open access: yesFrontiers in Neurology, 2022
There has been a major emphasis on defining the role of seizures in the causation of cognitive impairments like memory deficits in epilepsy. Here we focus on an alternative hypothesis behind these deficits, emphasizing the mechanisms of information ...
Mohamed R. Khalife   +6 more
doaj   +1 more source

A Spatial Location Representation Method Incorporating Boundary Information

open access: yesApplied Sciences, 2023
In response to problems concerning the low autonomous localization accuracy of mobile robots in unknown environments and large cumulative errors due to long time running, a spatial location representation method incorporating boundary information (SLRB ...
Hui Jiang, Yukun Zhang
doaj   +1 more source

A Positioning Method Based on Place Cells and Head-Direction Cells for Inertial/Visual Brain-Inspired Navigation System

open access: yesSensors, 2021
Mammals rely on vision and self-motion information in nature to distinguish directions and navigate accurately and stably. Inspired by the mammalian brain neurons to represent the spatial environment, the brain-inspired positioning method based on multi ...
Yudi Chen   +5 more
doaj   +1 more source

Network-centered homeostasis through inhibition maintains hippocampal spatial map and cortical circuit function

open access: yesCell Reports, 2021
Summary: Despite ongoing experiential change, neural activity maintains remarkable stability. Although this is thought to be mediated by homeostatic plasticity, what aspect of neural activity is conserved and how the flexibility necessary for learning ...
Klara Kaleb   +2 more
doaj   +1 more source

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