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functional heterogeneity of the locus coeruleus

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innovative techniques such as DREADDs (designer receptors exclusively activated by designer drugs) and optogenetics have demonstrated the functional heterogeneity of LC
Evidence 1Source 1DOIPubMedprovenance

Supporting Sources

Linked Claims

Claim 1biological role summarysupports2021Source 1DOIPubMed

Acute pain triggers a robust locus coeruleus stress response that produces spinal cord-mediated endogenous analgesia while promoting aversion, vigilance, and threat detection through ascending efferents.

Quoted textsource-backed
Acute pain triggers a robust LC stress response, producing spinal cord-mediated endogenous analgesia while promoting aversion, vigilance, and threat detection through its ascending efferents.
Claim 2biological role summarysupports2021Source 1DOIPubMed

In chronic pain, locus coeruleus activity shifts from a protective system toward pain facilitation, anxiety, increased aversive memory, and behavioral despair at medulla, prefrontal cortex, and amygdala levels.

Quoted textsource-backed
However, this protective biological system fails in chronic pain, and LC activity produces pain facilitation, anxiety, increased aversive memory, and behavioral despair, acting at the medulla, prefrontal cortex, and amygdala levels.
Claim 3projection specificitysupports2021Source 1DOIPubMed

Activation or deactivation of specific locus coeruleus projections contributes to different behavioral outcomes during the shift from acute to chronic pain.

Quoted textsource-backed
Thus, the activation/deactivation of specific LC projections contributes to different behavioral outcomes in the shift from acute to chronic pain.
Claim 4tool enables conceptual revisionsupports2021Source 1DOIPubMed

DREADDs and optogenetics helped redefine the locus coeruleus from a homogeneous structure to a functionally heterogeneous system.

Quoted textsource-backed
novel research tools are now available that have helped redefine the LC system, moving away from the traditional view of LC as a homogeneous structure that exerts a uniform influence on neural activity. Indeed, innovative techniques such as DREADDs (designer receptors exclusively activated by designer drugs) and optogenetics have demonstrated the functional heterogeneity of LC