A Cooperative Mechanism Involving Ca2+-Permeable AMPA Receptors and Retrograde Activation of GABAB Receptors in Interpeduncular Nucleus Plasticity [PDF]
Summary: The medial habenula-interpeduncular nucleus (MHb-IPN) pathway, which connects the limbic forebrain to the midbrain, has recently been implicated in aversive behaviors.
Peter Koppensteiner +2 more
exaly +5 more sources
The interpeduncular nucleus blunts the rewarding effect of nicotine. [PDF]
Summary Nicotine, by stimulating ventral tegmental area (VTA) dopaminergic neurons, has a rewarding effect that drives tobacco consumption. In turn, the interpeduncular nucleus (IPN) is thought to become activated at high nicotine doses to restrict drug intake. However, the dynamics of the IPN response to nicotine and
Jehl J +15 more
europepmc +5 more sources
Median raphe serotonergic neurons projecting to the interpeduncular nucleus control preference and aversion [PDF]
Appropriate processing of value information is essential for survival. Here the authors show that in mice, serotonergic activations originating from the median raphe nucleus facilitated aversion in a pathway-dependent manner, while silencing this pathway
Hiroyuki Kawai +17 more
doaj +3 more sources
Multiple Regionalized Genes and Their Putative Networks in the Interpeduncular Nucleus Suggest Complex Mechanisms of Neuron Development and Axon Guidance [PDF]
The interpeduncular nucleus (IPN) is a highly conserved limbic structure in the vertebrate brain, located in the isthmus and rhombomere 1. It is formed by various populations that migrate from different sites to the distinct domains within the IPN: the ...
Isabel M. García-Guillén +4 more
doaj +4 more sources
Netrin-1/DCC Signaling Differentially Regulates the Migration of Pax7, Nkx6.1, Irx2, Otp, and Otx2 Cell Populations in the Developing Interpeduncular Nucleus [PDF]
The interpeduncular nucleus (IPN) is a hindbrain structure formed by three main subdivisions, the prodromal (Pro) domain located at the isthmus (Ist), and the rostral and caudal interpeduncular domains (IPR, IPC) within rhombomere 1 (r1).
Isabel M. García-Guillén +14 more
doaj +4 more sources
Nicotinic Receptors in the Medial Habenula to Interpeduncular Nucleus Pathway: Modulators of Reward, Aversion and Emotion. [PDF]
ABSTRACT The medial habenula–interpeduncular nucleus pathway is a highly conserved and densely innervated brain circuit known for its unique cholinergic transmission and exceptional expression of nicotinic acetylcholine receptors. This pathway plays a critical role in regulating motivational and emotional processes, particularly those related to ...
Ciscato M, Chouvaeff M, Mourot A.
europepmc +3 more sources
Prolonged nicotine exposure reduces aversion to the drug in mice by altering nicotinic transmission in the interpeduncular nucleus [PDF]
Nicotine intake is likely to result from a balance between the rewarding and aversive properties of the drug, yet the individual differences in neural activity that control aversion to nicotine and their adaptation during the addiction process remain ...
Sarah Mondoloni +12 more
doaj +2 more sources
Visual motion and landmark position align with heading direction in the zebrafish interpeduncular nucleus [PDF]
Sensory information is fundamental for navigation. Visual motion is used by animals to estimate their traveling distance and direction, and landmarks allow animals to tether their location and orientation to their environment.
Hagar Lavian +4 more
doaj +2 more sources
Nicotine aversion is mediated by GABAergic interpeduncular nucleus inputs to laterodorsal tegmentum [PDF]
Despite its known effects in brain reward centers, nicotine can be aversive in high doses. Here, the authors show that nicotine aversion depends on low-affinity nicotinic acetylcholine receptors expressed on projections from the interpeduncular nucleus ...
Shannon L. Wolfman +7 more
doaj +2 more sources
Trans-Synaptic Virus Tracing Reveals Reciprocal Connections of the Interpeduncular Nucleus With the Mood, Exteroceptive, Interoceptive, and Motor Control Systems. [PDF]
The interpeduncular nucleus (IPN) in zebrafish plays a pivotal role in directional decision‐making, social conflict, and fear responses. The anterograde and retrograde connections of the dorsal and intermediate IPN are revealed through the use of monosynaptic and trans‐synaptic viral tracers.
Wong AK +4 more
europepmc +2 more sources

