Notus NeuroCogs™ Technical Information  

Notus NeuroCogs™ protocols are dependable and well-reviewed, having been employed in meaningful scientific data collection and having established a proven track record in the rigorous world of neuroscience research.

The Notus NeuroCogs™ protocols have been created and perfected for optimal clinical performance, a design that has been subjected to scientific scrutiny by several independent, peer-reviewed panels of experts in cognitive and clinical neuroscience. Each and every one of the Notus NeuroCogs™ protocols appears in at least one peer-reviewed study accepted for publication in a tier-1 scientific journal. See Notus Publications for several examples.

NNI’s proprietary protocols have been designed to produce optimal-quality functional images with minimal scanner time usage. NNI’s proprietary protocols are completely original and specifically designed for fMRI, so established concurrent validity with familiar neuropsychological tests gives practitioners a reference point for what to expect from each NNI protocol in terms of its assessment potential. Comparative tests listed are not owned by NNI and are presented here solely for the demonstration of concurrent validity with well-known tests.

   

Concurrent Validity

     

r Values

Exam Description Comparative Test

*Control

Impaired

f-MRT™ Matrix Reasoning Test. The patient is presented with an array of complex figures with one figure missing. The patient chooses the correct missing figure from among 4 alternatives using a button response pad. Raven’s Coloured Progressive Matrices

.90

.89

f-TMT™ Trail Making Test. A series of numbers and letters is displayed in a pseudorandom spatial arrangement.  The patient “draws” a progressive sequence of lines alternating between numbers and letters via button presses. Trail Making Test-B

.65

.78

f-PNT™ Picture Naming Test. The patient is instructed to silently name line drawings of familiar objects. A total of 70 drawings are presented for 2 seconds each. Snodgrass Standardized Picture Set — Selected Items *Naming Latency **Naming Agreement

 *.81 **.96

*.76 **N.A.

f-FMT™ Face Memory Test. The patient memorizes color photographs of unfamiliar faces. A total of 21 faces are presented twice in split-random order for 3 seconds each.  A recognition post-test is administered after 30 minutes. Test of Memory and Learning-Face Subtest

.80

N.A.

f-VMT™ Verbal Memory Test. On each trial, a series of eight common words is presented for 1 second each. The patient is instructed to silently rehearse target words for a total period of 20 seconds. California Verbal Learning Test

.72

N.A.

f-VFT™ Verbal Fluency Test. The patient is presented with a target letter and instructed to silently generate as many unique words that begin with that letter as possible within a 20-second limit. FAS Phonemic Fluency Test

.85

.89

N.A. = Not yet available.

*Control subjects include samples of 69-120 individuals without neurological or psychological pathology. Impaired subjects include 17 individuals with a broad range of cognitive impairments following traumatic brain injury.