Related Experiment Video
Updated: Aug 4, 2026
15:05
Technique and Considerations in the Use of 4x1 Ring High-definition Transcranial Direct Current Stimulation (HD-tDCS)
Published on: July 14, 2013
Feeling and seeing headaches
1City of London Migraine Clinic, 22 Charterhouse Square, London EC1 6DX, UK. blaujn@yahoo.co.uk
The Journal of Headache and Pain
|December 20, 2005
Summary
Understanding headache requires exploring patient experiences, personal observation, and mechanistic insights. Migraine is intracranial, tension-type headache extracranial, while cluster headache mechanisms remain elusive, needing further research.
Area of Science:
- Neurology
- Pain Medicine
- Clinical Research
Background:
- Headache is a prevalent condition with diverse origins.
- Current understanding of headache pathophysiology requires deeper investigation.
- Differentiating headache types is crucial for effective treatment.
Purpose of the Study:
- To enhance comprehension of headache through a multi-faceted approach.
- To explore the subjective and objective aspects of headache experiences.
- To investigate the potential origins and mechanisms of common headache types.
Main Methods:
- Detailed elicitation of patient symptoms and reactions.
- Personal reflection on headache experiences and clinical observation.
- Analysis of headache mechanisms based on origin and pathophysiology.
Main Results:
- Migraine is proposed to originate from cortical disturbances, leading to intracranial pain.
- Tension-type headache appears to stem from extracranial muscles and their connective tissues.
- Cluster headache mechanisms are unclear, though vasomotor control is therapeutically relevant.
Conclusions:
- Further research and innovative ideas are necessary to fully understand headache disorders.
- Distinguishing between intracranial and extracranial origins is key for migraine and tension-type headache.
- Cluster headache requires continued investigation into its underlying pathophysiology.
Related Concept Videos
01:30Alterations in Blood Pressure
Alterations in blood pressure, such as hypertension (high blood pressure) and hypotension (low blood pressure), significantly affect human health. Understanding these conditions' classifications, causes, and symptoms is essential for effective management and treatment.
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart beats)...
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart beats)...
01:29Blood and Nerve Supply to the Bones
Bones are dynamic organs that require a rich supply of oxygen and nutrients. Around 5% to 10% of the cardiac output supplies blood to the bones. A typical long bone has three main sources: the nutrient artery, the metaphyseal and epiphyseal arteries, and the periosteal arteries.
Nutrient Artery
The nutrient artery is the main blood vessel that enters the diaphysis via the nutrient foramen. While most long bones have only one nutrient foramen, large bones, such as the femur, may have two. This...
Nutrient Artery
The nutrient artery is the main blood vessel that enters the diaphysis via the nutrient foramen. While most long bones have only one nutrient foramen, large bones, such as the femur, may have two. This...
01:15Equilibrium and Balance
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
01:14Increased Intracranial Pressure l: Introduction
Intracranial hypertension is a sustained elevation of intracranial pressure (ICP) above 22 mm Hg. In supine adults, normal ICP is ~7–15 mm Hg.The rigid, nonexpandable cranium contains three components—brain tissue, blood, and cerebrospinal fluid (CSF)—that total ~1,700 mL in a typical adult: 1,400 mL brain (~80%), 150 mL blood (~10%), and 150 mL CSF (~10%). According to the Monro–Kellie doctrine, total intracranial volume is effectively fixed. When one component expands, CSF and venous blood...
01:20Seizures l: Introduction
Understanding seizures and epilepsy relies on key definitions that help in recognizing, classifying, and managing these disorders. These definitions provide a framework for recognizing, classifying, and managing seizure disorders.DefinitionsA seizure is a sudden, abnormal burst of electrical activity in the brain that can cause changes in awareness, movement, sensation, or behavior, depending on the area involved. Epilepsy is a chronic condition characterized by recurrent, unprovoked seizures,...
01:19Seizures ll: Types
Seizures are sudden bursts of abnormal electrical discharge in the brain that interfere with normal function. They are commonly divided into three groups: focal seizures, generalized seizures, and other types that do not fit neatly into either category.Focal SeizuresFocal seizures begin in a single brain region. When awareness is preserved, they are called focal aware seizures and may cause sensations such as tingling, unusual smells, or flashing lights. When awareness is impaired, they are...