公开(公告)号：US20200163568A1

公开(公告)日：2020-05-28

申请号：US16663176

申请日：2019-10-24

Applicant: Tata Consultancy Services Limited

Inventor： Rahul Dasharath GAVAS ,  Debatri CHATTERJEE ,  Aniruddha SINHA ,  Anirban CHOWDHURY ,  Sanjoy Kumar SAHA

IPC: A61B5/04 ,  A61B5/00 ,  A61B5/16 ,  A61B5/0484

Abstract: Metacognitive confidence is defined as the confidence generated from the observation and critical analysis of one's own the decision making process. There are various studies indicative of the importance of measurement of confidence level of the person while doing a task. The existing confidence level measurement methods provide various limitations such invasive and complex experimental setup, noise and artifacts in the signal. A system and method for determining confidence level of a person using electroencephalogram has been provided. The system is configured to build a metric to determine the amount of metacognitive confidence, in presence of different cognitive load condition, directly from brain activity using electroencephalogram signals. The brain activity acquired from the frontal and temporal part of the brain at different frequency bands and combined with suitable weights to form the confidence metric.

公开(公告)号：US20190110726A1

公开(公告)日：2019-04-18

申请号：US15756576

申请日：2017-03-22

Applicant: Tata Consultancy Services Limited

Inventor： Debatri CHATTERJEE ,  Aniruddha SINHA ,  Meghamala SINHA ,  Sanjoy Kumar SAHA

IPC: A61B5/16 ,  A61B5/0205 ,  A61B5/0476 ,  A61B5/053 ,  A61B5/00

Abstract: A system and method for detection and analysis of learner's/performers cognitive flow have been provided. The system is configured to measure the cognitive state of the performer, while they are performing tasks of various complexity levels, using physiological responses like brain activation, heart rate variability and galvanic skin response. The system uses a Bayesian network based framework to probabilistically evaluate the cognitive state of the learner from the difficulty levels of the tasks, IQ level of the learner and observations made using the physiological sensing. The system also measures the actual cognitive state using a questionnaire. The predicted cognitive state and the actual cognitive state is compared and based on the outcome of comparison a relevant step is taken.