Results 21 to 30 of about 7,060,917 (288)

Cholinergic Signaling Alters Stress-Induced Sensitization of Hippocampal Contextual Learning

open access: yesFrontiers in Neuroscience, 2019
Post-traumatic stress disorder (PTSD) has a profound contextual component, and has been demonstrated to alter future contextual learning. However, the mechanism by which a single traumatic event affects subsequent contextual experiences has not been ...
Sarah Hersman   +6 more
doaj   +1 more source

The absence of differential electrodermal responding in the second half of acquisition does not indicate the absence of fear learning

open access: yes, 2021
Many contemporary studies of human fear conditioning exclude participants who fail to show differential electrodermal responding during late stages of acquisition training, deeming them to be non-Learners. The current study examined whether non-Learners,
Lipp, OV, Waters, AM, Luck, CC
core   +1 more source

Pre-Learning Stress That Is Temporally Removed from Acquisition Impairs Fear Learning

open access: yesBiology, 2023
Few studies have examined the time-dependent effects of stress on fear learning. Previously, we found that stress immediately before fear conditioning enhanced fear learning.
Phillip R. Zoladz   +15 more
doaj   +1 more source

Rapid synaptic potentiation within the anterior cingulate cortex mediates trace fear learning

open access: yesMolecular Brain, 2012
Although the cortex has been extensively studied in long-term memory storage, less emphasis has been placed on immediate cortical contributions to fear memory formation.
Descalzi Giannina   +5 more
doaj   +1 more source

Enhanced Instructed Fear Learning in Delusion-Proneness

open access: yesFrontiers in Psychology, 2022
Psychosis is associated with distorted perceptions and deficient bottom-up learning such as classical fear conditioning. This has been interpreted as reflecting imprecise priors in low-level predictive coding systems. Paradoxically, overly strong beliefs,
Anaïs Louzolo   +7 more
doaj   +1 more source

Estimating students' online learning satisfaction during COVID-19: A discriminant analysis

open access: yesHeliyon, 2021
This study aims to examine online learning effects regarding self-efficacy, generalized anxiety, and fear of COVID-19 on three distinct online learning satisfaction levels (low, moderate, and high) among university students.
Mais Al-Nasa'h   +3 more
doaj   +1 more source

ABL1 in thalamus is associated with safety but not fear learning

open access: yesFrontiers in Systems Neuroscience, 2013
In auditory fear conditioning a tone is paired with a footshock, establishing long lasting fear memory to the tone. In safety learning these stimuli are presented in an unpaired non-overlapping manner and enduring memories to the tone as a safety signal ...
Mouna Rohana Habib   +3 more
doaj   +1 more source

Learning not to Fear: Neural Correlates of Learned Safety [PDF]

open access: yesNeuropsychopharmacology, 2013
The ability to recognize and properly respond to instances of protection from impending danger is critical for preventing chronic stress and anxiety-central symptoms of anxiety and affective disorders afflicting large populations of people. Learned safety encompasses learning processes, which lead to the identification of episodes of security and ...
Eryan, Kong   +3 more
openaire   +2 more sources

BDNF-dependent consolidation of fear memories in the perirhinal cortex

open access: yesFrontiers in Behavioral Neuroscience, 2013
In the recent years the perirhinal cortex (PRh) has been identified as a crucial brain area in fear learning. Since the neurotrophin BDNF (brain-derived neurotrophic factor) is an important mediator of synaptic plasticity and also crucially involved in ...
Brigitte eSchulz-Klaus   +2 more
doaj   +1 more source

MeCP2 in cholinergic interneurons of nucleus accumbens regulates fear learning

open access: yeseLife, 2020
Methyl-CpG-binding protein 2 (MeCP2) encoded by the MECP2 gene is a transcriptional regulator whose mutations cause Rett syndrome (RTT). Mecp2-deficient mice show fear regulation impairment; however, the cellular and molecular mechanisms underlying this ...
Ying Zhang   +14 more
doaj   +1 more source

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