95 results about "Cognitive status" patented technology

Apparatuses (e.g., devices, systems), and methods for transdermal electrical stimulation (TES). Apparatuses described herein can be self-contained, lightweight, and wearable. The apparatuses and methods described herein be configured to apply an ensemble current waveform between the two or more electrodes, wherein the ensemble current waveform comprises a series of component waveforms that are sequentially applied, and wherein each component waveform is different from a component waveform immediately before it and wherein transitions between the component waveforms temporally correlates with transitions in the sensory experience. Also described are neurostimulators for application of transdermal electrical stimulation (TES) and methods of using them for comfortably inducing a cognitive effect. Also described are Methods and apparatuses for amplitude modulation of all or a portion of an ensemble waveform to modify a user's cognitive state by transdermal electrical stimulation (TES).

In one embodiment, a method is provided for classifying cognitive activity in an individual. In the method, a candidate time interval is identified from a first type of physiological data within which cognitive processing is expected to occur for the individual. In addition, a second type of physiological data is obtained that comprises data representative of a cognitive state of the individual. Further, the data representative of a cognitive state of the individual is extracted from the second type of physiological data based on the identified candidate time interval.

An Intelligent Tutoring System (ITS) system is provided that is able to identify and respond adaptively to the learner's or student's affective states (i.e., emotional states such as confusion. frustration, boredom, and flow/engagement) during a typical learning experience, in addition to adapting to the learner's cognitive states. The system comprises a new signal processing model and algorithm, as well as several non-intrusive sensing devices, and identifies and assesses affective states through dialog assessment techniques, video capture and analysis of the student's face, determination of the body posture of the student, pressure on a pressure sensitive mouse, and pressure on a pressure sensitive keyboard. By synthesizing the output from these measures, the system responds with appropriate conversational and pedagogical dialog that helps the learner regulate negative emotions in order to promote learning and engagement.

A cognitive alteration system includes a storage unit at least to store one or more scripts, each to control a cognitive alteration process where the process occurs within at least one of: a dedicated session and a follow-up open time period and where the storage unit stores both a script per dedicated session and a script per follow-up open time period for the process; a script handler at least to run at least one script; at least one of a wearable and a non-wearable element to sense an attribute of a subject or to provide an output to the subject during one of the dedicated session and the follow-up open time period; an information analyzer at least to perform analysis of the readings of the at least one element, an integrator to integrate the analysis and a script updater to update at least one of the scripts.

Methods of modifying a subject's cognitive state by applying transdermal electrical stimulation (TES). In particular, described herein are methods of applying TES using a pair of electrodes each positioned at a particular location on the skin of the subject's head, or the head and neck, to evoke a predetermined cognitive state using a TES applicator. In particular, described herein are methods of enhancing attention, alertness, or mental focus or of enhancing a calm or relaxed mental state by applying high-intensity TES across electrodes positioned on the subject's temple and either the mastoid region or on the subject's neck. The subject may control the application directly and TES may be applied by a portable, including wearable, TES applicator.

Portable transdermal electrical stimulation (TES) applicators for modifying a subject's cognitive state. In general, the portable applicators described are specifically configured and adapted to be lightweight and may be wearable, and to deliver a high-intensity TES able to evoke or enhance a predetermined cognitive effect. These TES applicators may include a pair of electrodes and a TES control module comprising a processor, a timer and a waveform generator. TES control module is adapted to deliver a biphasic electrical stimulation signal of 10 seconds or longer between the first and second electrodes having a frequency of 400 Hz or greater, a duty cycle of greater than 10 percent, an intensity of 3 mA or greater, with a DC offset.

An augmented tutoring system is provided that includes a simulation device, at least one sensor and a controller. The simulation device is adapted to provide a simulation that has an objective to accomplish by a student, wherein to achieve the objective a plurality of tasks must be correctly completed. The at least one sensor is adapted to monitor a cognitive state of the student while engaged with the simulation. The controller is adapted to process cognitive state information from the at least one sensor and to process student progress information relating to the completion of each of the tasks. The controller is further adapted to provide feedback to the student based at least in part on the processed cognitive state information and the processed task completion information.

Transdermal electrical stimulation (TES) applicators that are wearable and configured to attached to a subject's pinna (ear) and adapted to apply TES to modulate the subject's cognitive and/or physiological state. These apparatuses may be configured so that they can be worn against the ear (e.g., the cymba of the ear) to deliver TES. Also described herein are methods of using them to modulate a subject's cognitive state. These TES applicators may also be adapted to function as audio head-phones for concurrent delivery of TES and audible signals (e.g., music).

The invention relates to a word cognitive state model-based adaptive learning system and method. The system comprises a mobile terminal, a computer terminal and a server end; the system further comprises a domain knowledge and extension resource module, a cognitive objective introduction module, a cognitive state analysis module, an adaptive learning module and a background database. The method comprises the steps of domain knowledge and extension resource structuralization, cognitive objective introduction and learning activity design, word learning and breakthrough making, learner cognitive state analysis and adaptive content recommendation. The word cognitive state model-based adaptive learning system and method of the invention are applicable to students who can learn English, can analyze the interactive data of the learners, evaluate the cognitive states of the learners, provide accurate recommendations which are suitable for the cognitive states and capacities of the learners in word learning, and minimize the cognitive burden brought by vocabularies which have been already mastered by the learners or vocabularies which are excessively difficult so as to reduce learning burden and improve learning efficiency.

Methods and apparatuses for amplitude modulation of all or a portion of an ensemble waveform to modify a user's cognitive state by transdermal electrical stimulation (TES). An ensemble current waveform may include a sequence of component biphasic current waveforms in which one or more parameters (such as frequency, current amplitude, percent duty cycle, and percent charge imbalance) vary between sequential component waveforms. These ensemble waveforms may be specifically configured to evoke a particular cognitive state when applied by TES. In particular, described herein are methods for applying amplitude modulation to all or a sub-set of the component waveforms in the ensemble waveform which may dramatically enhance the efficiency and effectiveness of the TES. Also described herein are methods and apparatuses for applying amplitude modulation to all or a portion of an ensemble waveform without truncating pulses of the component waveforms forming the ensemble waveform.

An apparatus and method of collecting elements of and assembling various portions of ocular micro motions such as ocular micro-tremor (OMT) movements of the eye, and correlating them directly with OMT waveforms acquired from both known and unknown states of cognition and cognitive function. Comparing newly acquired waveforms from patients with undiagnosed cognitive dysfunctions, permits an individual or caregiver the ability to identify those unknown issues or cognitive states based on matching or relating statistically elements of their waveform with categories of other known cognitive processing normals and abnormals, functional and dysfunctional individuals. It also allows for measuring the effects of therapeutic agents (psychological or pharmacological) by relating them to measurable changes in cognitive function as a result of correlated changes in waveforms.

Described herein are methods and apparatuses for the application of transdermal electrical stimulation (TES) in order to modulate a user's cognitive state to induce a state of calm or relaxation. The apparatuses described herein include neck-worn devices having electrodes (or configured to connect to electrodes, including automatically self-connecting to electrodes) adapted to couple to the midline of the back of user's neck. A neck-worn controller may be configured as a cord, band, wire, torc, necklace, loop, strap, or the like, and may be rigid or semi-rigid and may be worn at least partially around the subject's neck. The controller may controllably apply one or more waveforms to the electrodes of the electrode pad (e.g., patch) to deliver TES adapted to induce or enhance a relaxed cognitive state.

A smart lens system may include a hardware processor coupled to a smart contact lens, which may include a microprocessor, an image capturing sensor, and a wireless communication interface. The smart lens system may determine reading factors associated with a user with respect to the user reading content item, based on data related to the user's physiological movements captured by the smart contact lens. The reading factors may include a user's cognitive state determined at least from analyzing data representing the user's physiological movements. Responsive to determining that the user's cognitive state is above a threshold value, the smart lens system may generate an assistive action associated with the content item and transmit a signal to at least one assistive device to perform the assistive action. The assistive device performs the assistive action responsive to receiving the signal.

The invention relates to a virtual reality interaction method and device based on eye movement tracking, being characterized in that eyeball movement is tracked in real time by measuring the positionsof visual attention focuses of eyes; and an infrared light source and an infrared camera are adopted for collecting eye movement information, and the positions of pupils are measured by tracking andcalculating the center positions of the pupils in an eye image, and the movement track of the pupils is established. Furthermore, the virtual reality interaction device based on eye movement trackingcan monitor the physiological or cognitive state and emotional changes, such as frightening and stimulation, of a user in real time by monitoring the changes of pupils, and can monitor eye movement tracks and the changes, such as the corresponding degree of dilation or reduction, of the pupils and feed the changes back to the main control module.

The invention discloses a learning cognitive path generation method based on a cognitive map. A cognitive learning path is recommended to a learner in combination with the cognitive dimension ontologyand the course knowledge graph; firstly, a cognitive map modeling and constructing method is provided; on the basis, for a learner and a target learning unit are given, firstly, the current cognitivestate of a learner is recognized according to a learning log; a cognitive learning path of the target knowledge unit is generated by combining the cognitive ability of the target knowledge unit; andrecommendation and generation of cognitive paths in personalized learning can be realized, wherein a cognitive dimension ontology diagram is designed, it is guaranteed that learners can analyze and diagnose the learning situation of each knowledge unit in a finer-grained mode, a learning target cognition path is generated based on the course knowledge graph, and the algorithm integrating the cognition dimension, the learning record and the learner cognition attribute can better provide more accurate personalized learning services for the learners.

Described herein is a method for alerting of personal risk in the workplace through a wearable indication signifying a risk condition that includes generating a set of workplace predictors of risk relating to accidents, injury, and industrial hygiene, based on at least one worker state that includes at least one of a physical state, a cognitive state, and an emotional state, and alerting a worker endangered by a predicted elevated risk to the existence of the predicted elevated risk by sending a perceivable alert to the worker. A system for alerting of personal workplace risk is also described.