Linking neurophysiological and neuropsychological measures for cognitive function assessment in a patient
First Claim
1. A method for cognitive function assessment in a patient comprising:
- adapting a standardized psychometric test to a computer format to produce a computerized standardized psychometric neuropsychological test for presentation of stimuli to the patient;
simultaneously presenting the test to the patient and recording the patient'"'"'s event-related potential (ERP) obtained from an EEG (electroencephalogram) to generate ERP data;
applying algorithms that relate the ERP data to behavioral data through a regression line in an interpretable manner within the context of standardized psychometric tests;
using this regression line to interpret the ERP data within the context of standardized psychometric tests even in the absence of behavior/performance measures;
and making prognosis of the patient using the ERP data;
wherein the steps of the method are conducted in such a manner as to permit the evaluation of a patient'"'"'s state of mental functioning using the ERP data even if the patient is unable to verbally or behaviorally perform the test in a typical fashion.
0 Assignments
0 Petitions
Accused Products
Abstract
A method for cognitive function assessment in a patient uses the ERP waveform features and parameters that maximize the correlation between the ERP components and behavioral performance on a neuropsychological test of language comprehension (PPVT-R). The method provides an electrophysiological diagnostic technique that can be used in the assessment of aphasic patients. ERPs are recorded during a computerized version of the Peabody Picture Vocabulary Test-Revised (PPVT-R, Form M). In the computerized version, a picture is presented followed by a congruent or incongruent spoken word. A derived measure is calculated from the ERP differentiation between congruent and incongruent words. The N400 is the primary component elicited to incongruent spoken words.
-
Citations
20 Claims
-
1. A method for cognitive function assessment in a patient comprising:
-
adapting a standardized psychometric test to a computer format to produce a computerized standardized psychometric neuropsychological test for presentation of stimuli to the patient; simultaneously presenting the test to the patient and recording the patient'"'"'s event-related potential (ERP) obtained from an EEG (electroencephalogram) to generate ERP data; applying algorithms that relate the ERP data to behavioral data through a regression line in an interpretable manner within the context of standardized psychometric tests; using this regression line to interpret the ERP data within the context of standardized psychometric tests even in the absence of behavior/performance measures; and making prognosis of the patient using the ERP data; wherein the steps of the method are conducted in such a manner as to permit the evaluation of a patient'"'"'s state of mental functioning using the ERP data even if the patient is unable to verbally or behaviorally perform the test in a typical fashion.
-
-
2. A method for cognitive function assessment in a patient comprising:
-
adapting a neuropsychological test to a computer format to produce a computerized standardized psychometric neuropsychological test for presentation of stimuli to the patient; simultaneously presenting the test to the patient and recording the patient'"'"'s electroencephalographic (EEG) signals to effect recording of late-occurring “
cognitive”
event-related potentials (ERP) from a number of locations on the patient'"'"'s head to provide ERP data;applying a series of analysis algorithms that relate the ERP data to obtained behavioral data in an interpretable manner; applying a series of analysis algorithms that permit interpretation of the ERP data within the context of the test'"'"'s framework even in the absence of behavioral data; and making a prognosis of patient outcome using the ERP data obtained using the test; wherein the steps of the method are conducted in such a manner as to permit the evaluation of a patient'"'"'s state of mental functioning using the ERP data even if the patient is unable to verbally or behaviorally perform the test in a typical fashion. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method for cognitive function assessment in a patient comprising:
-
adapting a neuropsychological test to a computer format to produce a computerized standardized psychometric neuropsychological test for presentation of stimuli to the patient; wherein the patient is unable to verbally or behaviorally perform the test in a typical fashion; simultaneously presenting the test to the patient and recording the patient'"'"'s electroencephalographic (EEG) signals to effect recording of late-occurring “
cognitive”
event-related potentials (ERP) from a number of locations on the patient'"'"'s head to provide ERP data even in the absence of behavioral data from the test on the patient;applying a series of analysis algorithms that relate the ERP data obtained in the test to obtained behavioral data in an interpretable manner; applying a series of analysis algorithms that permit interpretation of the ERP data within the context of the test'"'"'s framework; and making a prognosis of patient outcome using the ERP data obtained using the test.
-
Specification