Re: left side temporal slowing Focal slowing, where the frequency of the waves in one area of the brain is slower than the frequency in the rest of the brain, has more than one cause, so you're going to have to get your doctor's diagnosis to know exactly what it means to you.Similarly, you may ask, what does temporal slowing mean?
Temporal slowing just means that the brain waves in that area are slower frequency than would be expected. Sometimes this can occur from seizure activity arising from deeper areas of the brain but by the time it's picked up on EEG, it's just seen as slow waves and not as clear 'epileptiform' or seizure activity.
Subsequently, question is, can an abnormal EEG mean nothing? 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.
Accordingly, what does slowing mean on an EEG?
Focal Slowing Focal slow wave activity on the EEG is indicative of focal cerebral pathology of the underlying brain region. Slowing may be intermittent or persistent, with more persistent or consistently slower activity generally indicating more severe underlying focal cerebral dysfunction.
What are the possible causes for an abnormal EEG?
Abnormal results on an EEG test may be due to:
- Abnormal bleeding (hemorrhage)
- An abnormal structure in the brain (such as a brain tumor)
- Tissue death due to a blockage in blood flow (cerebral infarction)
- Drug or alcohol abuse.
- Head injury.
- Migraines (in some cases)
- Seizure disorder (such as epilepsy)
What drug causes slow brain waves?
Benzodiazepines (Anxiolyics): Benzodiazepines are depressant drugs that are used to slow down the central nervous system. They are mild tranquillisers and help people deal with stress, anxiety and sleep issues. Commonly used benzos are Xanax and Valium. Bezos are thought to increase both beta and theta in the brain.What is Theta slowing?
Theta and Delta Slowing Theta rhythms are commonly encountered in the frontocentral regions and are usually related to drowsiness or heightened emotional states. It will block with eye opening and disappear with the alpha rhythm during drowsiness.What does your left temporal lobe control?
Left and Right Lobes In most people, the left side of the brain is the dominant one, and in most people the left temporal lobe controls memories related to facts and information, along with the ability to recognize faces and objects.Can EEG show dementia?
An electroencephalogram (EEG) may be done to detect abnormal brain-wave activity. Although the EEG is usually normal in people with mild Alzheimer's disease and many other types of dementia, EEG abnormalities do occur in delirium and Creutzfeldt-Jakob disease, which is a cause of dementia.How is temporal lobe epilepsy diagnosed?
A doctor can diagnose temporal lobe seizures from a detailed description of how the seizures occurred. Doctors look for characteristic brain abnormalities associated with temporal lobe epilepsy. Doctors will also perform an electroencephalogram (EEG), a test used to measure the brain's electrical activity.Will EEG show previous seizure?
Even someone who has seizures every week can have a normal EEG test. This is because the EEG only shows brain activity during the time of the test. The EEG generally records brain waves between seizures, called interictal brain waves. These waves may or may not show evidence of seizure activity.Does an EEG show brain damage?
An EEG is of value for diagnosing epilepsy only if it detects patterns typical of epilepsy. EEG can also detect abnormal brain waves after a head injury, stroke, or brain tumor. Other conditions such as dizziness, headache, dementia, and sleeping problems may show abnormal brain patterns.What is temporal lobe epilepsy?
Temporal lobe epilepsy (TLE) is a chronic disorder of the nervous system characterized by recurrent, unprovoked focal seizures that originate in the temporal lobe of the brain and last about one or two minutes. TLE is the most common form of epilepsy with focal seizures.What does a bad EEG look like?
The other way an EEG can show abnormal results is called non-epileptiform changes. This can be a general change in the way a normal brain wave looks. It may have an abnormal frequency, height or shape. It can also be a brain wave showing up that should not.Why is my brain so slow at processing information?
Some people may have a genetic predisposition to age-related white matter decay, a poorly understood but actively studied hypothesis. In other individuals, slowed processing speed could be the first sign of a neurodegenerative illness, such as Alzheimer's disease. Head trauma, including concussions, may play a role.Can EEG detect mental illness?
Electroencephalography (EEG) is primarily of use in diagnosing epilepsy and other brain diseases (1), but there are other reasons why EEG is also an important diagnostic test in psychiatric practice. Epileptic seizures can also mimic psychiatric disorders or trigger episodes with psychiatric symptoms.What is diffuse slowing on EEG?
Since the EEG is a test of cerebral function, diffuse (generalized) abnormal patterns are by definition indicative of diffuse brain dysfunction (ie, diffuse encephalopathy). Focal (localized) slow activity reflects focal dysfunction, not diffuse dysfunction (ie, encephalopathy).Can EEG be wrong?
Yes, EEG can be bad for you. The consequences of being misdiagnosed with epilepsy are obvious and serious [9]. When the diagnosis is based largely on an abnormal EEG, no amount of subsequent normal EEGs will 'cancel' the previous abnormal one, and the wrong diagnosis is very difficult to undo.Do myoclonic seizures show up EEG?
Ictal EEG : Negative myoclonus is seen in association with the spike of a spike or spike-and-wave discharge on EEG. A myoclonic-atonic seizure is a myoclonic seizure followed by an atonic seizure. Sometimes a series of myoclonic jerks occurs prior to the atonia.What happens if EEG is abnormal?
This means that sometimes the EEG is described as 'abnormal' (that is 'not normal' brain activity) but does not 'prove' that the person has epilepsy. Also, many people who do have epilepsy will only have 'abnormal' activity on the EEG if they have a seizure at the time the test is happening.What a normal EEG looks like?
EEG waveforms are generally classified according to their frequency, amplitude, and shape, as well as the sites on the scalp at which they are recorded. Most waves of 8 Hz and higher frequencies are normal findings in the EEG of an awake adult.How long does it take a neurologist to read an EEG?
The test itself will take about 30-60 minutes. Placing the electrodes usually takes 20 minutes, but can take up to an hour, so the entire procedure may take about one to 2 hours. If you have an ambulatory EEG, brain activity is recorded for 24 hours or more. 
