Distinct signals in medial and lateral VTA dopamine neurons modulate fear extinction at different times

LX Cai, K Pizano, GW Gundersen, CL Hayes… - Elife, 2020 - elifesciences.org
Dopamine (DA) neurons are thought to encode reward prediction error (RPE), in addition to
other signals, such as salience. While RPE is known to support learning, the role of salience …

Functional architecture of dopamine neurons driving fear extinction learning

XI Salinas-Hernández, D Zafiri, T Sigurdsson… - Neuron, 2023 - cell.com
The ability to extinguish fear responses to stimuli that no longer predict danger is critical for
adaptive behavior and increases the likelihood of survival. During fear extinction, dopamine …

Dopamine neurons drive fear extinction learning by signaling the omission of expected aversive outcomes

XI Salinas-Hernández, P Vogel, S Betz, R Kalisch… - Elife, 2018 - elifesciences.org
Extinction of fear responses is critical for adaptive behavior and deficits in this form of safety
learning are hallmark of anxiety disorders. However, the neuronal mechanisms that initiate …

Midbrain dopamine neurons signal aversion in a reward-context-dependent manner

H Matsumoto, J Tian, N Uchida, M Watabe-Uchida - Elife, 2016 - elifesciences.org
Dopamine is thought to regulate learning from appetitive and aversive events. Here we
examined how optogenetically-identified dopamine neurons in the lateral ventral tegmental …

A dopaminergic switch for fear to safety transitions

R Luo, A Uematsu, A Weitemier, L Aquili… - Nature …, 2018 - nature.com
Overcoming aversive emotional memories requires neural systems that detect when fear
responses are no longer appropriate so that they can be extinguished. The midbrain ventral …

Convergent processing of both positive and negative motivational signals by the VTA dopamine neuronal populations

DV Wang, JZ Tsien - PloS one, 2011 - journals.plos.org
Dopamine neurons in the ventral tegmental area (VTA) have been traditionally studied for
their roles in reward-related motivation or drug addiction. Here we study how the VTA …

Synaptic plasticity onto dopamine neurons shapes fear learning

M Pignatelli, GKE Umanah, SP Ribeiro, R Chen… - Neuron, 2017 - cell.com
Fear learning is a fundamental behavioral process that requires dopamine (DA) release.
Experience-dependent synaptic plasticity occurs on DA neurons while an organism is …

A VTA to basal amygdala dopamine projection contributes to signal salient somatosensory events during fear learning

W Tang, O Kochubey, M Kintscher… - Journal of …, 2020 - Soc Neuroscience
The amygdala is a brain area critical for the formation of fear memories. However, the nature
of the teaching signal (s) that drive plasticity in the amygdala are still under debate. Here, we …

Dopamine in fear extinction

XI Salinas-Hernández, S Duvarci - Frontiers in synaptic neuroscience, 2021 - frontiersin.org
The ability to extinguish fear memories when threats are no longer present is critical for
adaptive behavior. Fear extinction represents a new learning process that eventually leads …

Attenuated dopamine signaling after aversive learning is restored by ketamine to rescue escape actions

M Wu, S Minkowicz, V Dumrongprechachan… - Elife, 2021 - elifesciences.org
Escaping aversive stimuli is essential for complex organisms, but prolonged exposure to
stress leads to maladaptive learning. Stress alters neuronal activity and neuromodulatory …