In such cases, you might encourage your doctor to consider getting you neuropsychological testing, a qEEG, or a SPECT scan.

NPR: Excerpt: 'Delivered from Distraction'

The spatial resolution of cardiac MRI is 60 times greater than SPECT - allowing it to pick up these microinfarcts.

BBC: Dr Robert Judd

The SPECT brain scan is not widely available, though we believe it could help a great deal in psychiatry if it were.

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The patients underwent single-photon emission computed tomography (SPECT) before and after immunization.

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The subjects were scanned using SPECT (single photon emission computed tomography) to highlight the areas of the brain that are active and inactive during the practice.

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In addition, Techniques like Positron Emission Tomography (PET), Single Photon Emission Computed Tomography (SPECT), and Magnetic Resonance Imaging (MRI) are going to unravel the mystery of the neuron jungle.

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Since the spatial resolution of SPECT is roughly equivalent to the thickness of the heart chamber wall, it can only detect those infarcts that have traversed a good portion of the chamber wall.

BBC: Dr Robert Judd

In complex cases where the diagnosis is unclear or there is a suspicion of coexisting conditions, especially if there is a history of head injury or other brain trauma, a SPECT scan can help.

NPR: Excerpt: 'Delivered from Distraction'

In addition to the history, which should include questions based upon the DSM-IV diagnostic criteria, and the qEEG and sometimes the SPECT, other standardized sets of questions, such as the ADHD Rating Scale or the Brown scale, add confidence to the diagnosis.

NPR: Excerpt: 'Delivered from Distraction'