locus coeruleus
E804585
The locus coeruleus is a small brainstem nucleus that is the primary source of norepinephrine in the brain and plays key roles in arousal, attention, and stress responses.
All labels observed (2)
| Label | Occurrences |
|---|---|
| locus coeruleus canonical | 2 |
| noradrenergic locus coeruleus | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9524653 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: locus coeruleus Context triple: [Lewy bodies, foundIn, locus coeruleus]
-
A.
inferior colliculus
The inferior colliculus is a midbrain auditory center that integrates and relays sound information from lower brainstem nuclei to higher brain regions involved in hearing.
-
B.
reticular nucleus of thalamus
The reticular nucleus of the thalamus is a thin shell of inhibitory (GABAergic) neurons surrounding the thalamus that regulates thalamocortical signaling and plays a key role in attention and sleep rhythms.
-
C.
substantia nigra
The substantia nigra is a midbrain structure rich in dopamine-producing neurons that plays a key role in movement control and is critically involved in Parkinson’s disease.
-
D.
Amygdala
The amygdala is an almond-shaped brain structure in the temporal lobe that plays a central role in processing emotions, especially fear and threat detection.
-
E.
thalamus
The thalamus is a deep brain structure that acts as a central relay hub, processing and transmitting sensory and motor information to the cerebral cortex and playing key roles in consciousness, sleep, and attention.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: locus coeruleus Target entity description: The locus coeruleus is a small brainstem nucleus that is the primary source of norepinephrine in the brain and plays key roles in arousal, attention, and stress responses.
-
A.
inferior colliculus
The inferior colliculus is a midbrain auditory center that integrates and relays sound information from lower brainstem nuclei to higher brain regions involved in hearing.
-
B.
reticular nucleus of thalamus
The reticular nucleus of the thalamus is a thin shell of inhibitory (GABAergic) neurons surrounding the thalamus that regulates thalamocortical signaling and plays a key role in attention and sleep rhythms.
-
C.
substantia nigra
The substantia nigra is a midbrain structure rich in dopamine-producing neurons that plays a key role in movement control and is critically involved in Parkinson’s disease.
-
D.
Amygdala
The amygdala is an almond-shaped brain structure in the temporal lobe that plays a central role in processing emotions, especially fear and threat detection.
-
E.
thalamus
The thalamus is a deep brain structure that acts as a central relay hub, processing and transmitting sensory and motor information to the cerebral cortex and playing key roles in consciousness, sleep, and attention.
- F. None of above. chosen
Statements (54)
| Predicate | Object |
|---|---|
| instanceOf |
anatomical structure
ⓘ
brainstem nucleus ⓘ noradrenergic nucleus ⓘ |
| activityCorrelatesWith | level of alertness ⓘ |
| activityIncreasesWith |
novel stimuli
ⓘ
stress ⓘ |
| associatedWithDisease |
Alzheimer's disease
ⓘ
Parkinson's disease ⓘ anxiety disorders ⓘ attention-deficit/hyperactivity disorder ⓘ major depressive disorder ⓘ |
| bilaterallyPaired | true ⓘ |
| cellType | noradrenergic neurons ⓘ |
| containsPigment | neuromelanin ⓘ |
| degeneratesIn |
Alzheimer's disease
ⓘ
Parkinson's disease ⓘ |
| developsFrom | alar plate of the embryonic hindbrain ⓘ |
| firingPattern |
phasic bursts
ⓘ
tonic activity ⓘ |
| hasNeurotransmitter |
noradrenaline
ⓘ
norepinephrine ⓘ |
| isPrimarySourceOf | norepinephrine in the brain ⓘ |
| locatedIn |
brainstem
ⓘ
pons ⓘ |
| marker | tyrosine hydroxylase expression ⓘ |
| modulates |
sensory signal-to-noise ratio
ⓘ
synaptic plasticity ⓘ |
| nameLanguage | Latin ⓘ |
| nameMeans | blue spot ⓘ |
| partOf |
ascending reticular activating system
ⓘ
central nervous system ⓘ |
| playsRoleIn |
arousal
ⓘ
attention ⓘ autonomic regulation ⓘ cognitive control ⓘ memory modulation ⓘ pain modulation ⓘ sleep–wake regulation ⓘ stress response ⓘ vigilance ⓘ |
| projectsTo |
amygdala
ⓘ
cerebellum ⓘ cerebral cortex ⓘ hippocampus ⓘ hypothalamus ⓘ spinal cord ⓘ thalamus ⓘ |
| receivesInputFrom |
hypothalamus
ⓘ
nucleus paragigantocellularis ⓘ periaqueductal gray ⓘ prefrontal cortex ⓘ |
| situatedDorsalTo | rostral pons ⓘ |
| situatedLateralTo | fourth ventricle ⓘ |
| visibleAs | bluish area in the pontine tegmentum ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: locus coeruleus Description of subject: The locus coeruleus is a small brainstem nucleus that is the primary source of norepinephrine in the brain and plays key roles in arousal, attention, and stress responses.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: locus coeruleus