English text:
Abnormal EEG signals include little electrical "explosions" such as the spikes, spike and wave, and sharp waves that are common in Epilepsy even when children are not in the midst of a clinical seizure. Indeed, the EEG is usually done in the interictal state-the time in between clinical seizures.
Persian translation:
In an unhealthy brain tape, sometimes sudden and short electrical activities are seen, which are common in epilepsy, even when the child is not having a seizure at that moment. An EEG is usually recorded in the interval between seizures, not during the seizure itself.

The difference between healthy and unhealthy brain bands in brain damage and stroke

In a healthy brain, the electrical activity of the two hemispheres is almost symmetrical. No area has a severe drop in activity or local slowness. In brain injury or stroke, EEG may show localized slowing or reduced amplitude of the waves. These changes are usually seen in the affected area. The severity of EEG changes is usually related to the degree of brain damage. The wider the damage, the more clearly the disturbance in the brain band.

English text:
An abnormal EEG doesn't automatically mean that you, for example, have epilepsy. The EEGs of babies and young children can often record irregular patterns that don't mean anything, or the irregularities may flag previously diagnosed neurological conditions such as cerebral palsy. Farsi translation: Abnormal brain tape does not necessarily mean that a person has epilepsy. In infants and young children, the EEG sometimes shows irregular patterns that are not pathologically significant, or these changes can be indicative of known neurological disorders such as cerebral palsy.

brain band in encephalopathies and metabolic disorders

In healthy conditions, the normal level of consciousness is associated with regular waves. The brain responds appropriately to environmental changes. In encephalopathies, different patterns are seen, the slowness of the wave propagation is usually seen. This condition indicates a general disorder in brain function, not a localized problem. Metabolic disorders such as liver or kidney problems or lack of oxygen can cause significant changes in brain activity, which often improve with treatment of the underlying cause.

The difference between healthy and unhealthy brain bands in sleep disorders

In normal sleep, the brain tape shows specific patterns in different stages of sleep. These changes are completely predictable. In sleep disorder, these patterns may be disrupted or the timing of sleep stages may be abnormal. Sometimes unexpected activities are seen in dreams. EEG in these cases helps the doctor to distinguish between sleep disorder, nocturnal seizures or other problems.

Can you tell if you are healthy or unhealthy by looking at the brain scan image?

At first glance, it is almost impossible for the average person to determine whether the brain tape is healthy or unhealthy. Even some unnatural patterns look natural to the untrained eye. In addition to the image, the neurologist pays attention to the speed of the waves, amplitude, symmetry and brain response to stimuli. These details cannot be recognized without specialized training. For this reason, arbitrary interpretation of the brain scan can cause false anxiety or reassurance and is not recommended.

Characteristics	Healthy brain band	Unhealthy brain band
Wave pattern	Regular, symmetrical and age appropriate	Irregularity, asymmetry or waves Abnormal
Alpha, beta, theta, delta waves	Normal ratio and specific location	Excessive slowness or sharp waves and spikes
Electrical activity	Neuron communication is done correctly	Sudden electrical discharge (spike, spike-wave)
bihemispheric symmetry	almost symmetrical	local asymmetry or slowness
in epilepsy	absence of sharp waves and spikes	sharp waves, spikes or spike-waves (even between attacks)
in injury Cerebral/stroke	Without severe loss of activity or local slowness	Local slowness or reduced amplitude of waves
In encephalopathies	Level of consciousness with regular waves	Diffuse slowness of waves
In sleep disorders	Specific and predictable patterns in stages Sleep	disruption of patterns or unexpected activity

Conclusion

The difference between a healthy and unhealthy brain band is not just a few wavy lines. These differences are a reflection of actual brain function and should be evaluated alongside clinical symptoms. EEG is a powerful diagnostic tool, but alone is not enough to make a definitive diagnosis. The doctor's experience and the individual's condition play a decisive role. If the result of your brain scan is reported as abnormal, it does not necessarily mean a serious illness. The most important step is a detailed examination by an expert.

Your doctor takes care of your health!