Dynamic remodeling of a basolateral-to-central amygdala glutamatergic circuit across fear states

ND Hartley, AD Gaulden, R Báldi, ND Winters… - Nature …, 2019 - nature.com
Acquisition and extinction of learned fear responses utilize conserved but flexible neural
circuits. Here we show that acquisition of conditioned freezing behavior is associated with …

Experience-dependent resonance in amygdalo-cortical circuits supports fear memory retrieval following extinction

M Ozawa, P Davis, J Ni, J Maguire, T Papouin… - Nature …, 2020 - nature.com
Learned fear and safety are associated with distinct oscillatory states in the basolateral
amygdala (BLA) and medial prefrontal cortex (mPFC). To determine if and how these …

Hippocampal and prefrontal projections to the basal amygdala mediate contextual regulation of fear after extinction

CA Orsini, JH Kim, E Knapska… - Journal of Neuroscience, 2011 - Soc Neuroscience
Knowing when and where to express fear is essential to survival. Recent work in fear
extinction paradigms reveals that the contextual regulation of fear involves a neural network …

Cellular and oscillatory substrates of fear extinction learning

P Davis, Y Zaki, J Maguire, LG Reijmers - Nature neuroscience, 2017 - nature.com
The mammalian brain contains dedicated circuits for both the learned expression and
suppression of fear. These circuits require precise coordination to facilitate the appropriate …

[HTML][HTML] Amygdala reward neurons form and store fear extinction memory

X Zhang, J Kim, S Tonegawa - Neuron, 2020 - cell.com
The ability to extinguish conditioned fear memory is critical for adaptive control of fear
response, and its impairment is a hallmark of emotional disorders like post-traumatic stress …

Different lateral amygdala outputs mediate reactions and actions elicited by a fear-arousing stimulus

P Amorapanth, JE LeDoux, K Nader - Nature neuroscience, 2000 - nature.com
Fear-arousing stimuli elicit innate reactions and can reinforce acquisition of new responses.
We tested whether mechanisms mediating these conditioned stimulus (CS) properties were …

Neuronal encoding of the switch from specific to generalized fear

S Ghosh, S Chattarji - Nature neuroscience, 2015 - nature.com
Fear memories are crucial for survival. However, excessive generalization of such
memories, characterized by a failure to discriminate dangerous from safe stimuli, is common …

[HTML][HTML] Fear conditioning and the basolateral amygdala

Y Sun, H Gooch, P Sah - F1000Research, 2020 - ncbi.nlm.nih.gov
Fear is a response to impending threat that prepares a subject to make appropriate
defensive responses, whether to freeze, fight, or flee to safety. The neural circuits that …

Amygdala-ventral striatum circuit activation decreases long-term fear

SS Correia, AG McGrath, A Lee, AM Graybiel… - Elife, 2016 - elifesciences.org
In humans, activation of the ventral striatum, a region associated with reward processing, is
associated with the extinction of fear, a goal in the treatment of fear-related disorders. This …

The fear circuit revisited: contributions of the basal amygdala nuclei to conditioned fear

T Amano, S Duvarci, D Popa, D Paré - Journal of Neuroscience, 2011 - Soc Neuroscience
The lateral nucleus (LA) is the input station of the amygdala for information about
conditioned stimuli (CSs), whereas the medial sector of the central nucleus (CeM) is the …