60 + Mar 24, 2026

The history predicts non-dominant (right) temporal lobe epilepsy.

 

Awake:

 

Drowsy:

 

Sleep:

 

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70+ Mar 23, 2026

There have been 2 neurological events, approximately 2 years apart. These were virtually identical and both occurred while standing in the house. The patient had a sense of vertigo, as the world appea...

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Drowsiness versus midline theta of Ciganek versus frontal midline theta (FMT) Mar 21, 2026

The following is from an  adult patient:

 

 In the page above, rhythmic theta waves appear at CZ-PZ. The patient is drowsy; the alpha rhythms attenuate, as does temporal EMG, and there are tempora...

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Mid teenage years, "explosive outbursts" Mar 19, 2026



The EEG is normal during wakefulness.  Here are a variety of pages from sleep, each represented in different montages. These discharges appeared profusely, typically at least once every 10 seconds dur...

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Adult, episodic events 3-4 times per year, possibly representing epileptic seizures Mar 07, 2026

What do these waves during wakefulness and sleep represent?

 

These are three consecutive pages:

 

Figure 1:

 

Figure 2:

 

 The following represent three consecutive pages:

 figure 5

f...

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Good examples of spiky alpha Mar 02, 2026

It is important to recognise this, as sooner or later in the same recording, there will likely be isolated waves that resemble spikes or sharp waves.

 

 

 

 

 

 

The following is fr...

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What is the nature of these waves? Feb 25, 2026

Are these waves on the 2nd page below:
1. A physiological variant
2. Theta and delta waves at M2-F8 (right inferior, anterior temporal region)
3. Theta waves, delta waves, and sharp waves at M2-F8
4. An e...

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Adult, epilepsy versus functional/dissociative seizures Feb 24, 2026

Intellectually normal, traumatic brain injury at the age of 4 months, EEG is normal while awake. The MRI scan is reported to show extensive spongiosis and cavitation in the right frontal lobe. A colle...

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When is a spike a spike? Feb 07, 2026

Criteria for these have existed for many years, but there have been recent attempts to refine and standardise them, using an evidence-based approach.

 

Here are some recent attempts:

Criteria for d...

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Mu rhythm versus central alpha Feb 07, 2026

 

 

 

The appearance of alpha frequencies coincides with eye movements (Eye closure, the Bell's phenomenon, upward movement of the globes), indicative of alpha rhythms. Notice that these are ...

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PLEDs? Feb 06, 2026

At M2-F8?

 

 

No!

 

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