Method, device and system for rehabilitating cognitive function by using virtual object model

Inventors

Cho, Sung Min • Kim, Won Seok • PARK, Jung Taek • CHO, Young Hoo

Assignees

Delvine Inc

Abstract

The present disclosure relates to a method by which a device provides a service so as to enable cognitive function rehabilitation by using a virtual object model. The method includes the steps of: generating first preliminary stimuli for identifying egocentric neglect in a visual range of a subject; obtaining first reaction information about the first preliminary stimuli; determining an egocentric cognition range in which the subject can egocentrically recognize visual stimuli; sequentially generating second preliminary stimuli for identifying allocentric neglect in the egocentric cognition range; obtaining second reaction information about the second preliminary stimuli; determining an allocentric cognition range in which the subject can allocentrically recognize visual stimuli; generating input stimuli for the subject in consideration of the egocentric cognition range and the allocentric cognition range; and obtaining third reaction information, according to a predetermined reaction operation of the subject, for the input stimuli.

Core Innovation

The invention provides a service for cognitive function rehabilitation using a virtual object model. The method generates the virtual object model in a virtual space matched to a real space in which a subject is located, so that the virtual space corresponds to the real space. Based on this virtual object model, the method sequentially generates a plurality of first preliminary stimuli for identifying egocentric neglect in a field of vision of the subject, and obtains and collects first reaction information indicating whether the first preliminary stimuli are recognized by the subject.

Using the first reaction information, the method determines an egocentric cognitive range in which the subject is able to egocentrically recognize a visual stimulus different from the plurality of first preliminary stimuli. After the egocentric cognitive range is determined, the method sequentially generates a plurality of second preliminary stimuli for identifying allocentric neglect in the egocentric cognitive range, based on the virtual object model, and obtains and collects second reaction information indicating whether the second preliminary stimuli are recognized by the subject.

Using the second reaction information, the method determines an allocentric cognitive range in which the subject is able to allocentrically recognize a visual stimulus different from the plurality of second preliminary stimuli. The disclosed approach determines an egocentric cognitive range and then uses that egocentric cognitive range to identify allocentric neglect and determine an allocentric cognitive range based on recognition of preliminary virtual stimuli. The invention is implemented in a device including modules for virtual object model generation, virtual space matching, visual stimulus generation, reaction collection, and reaction analysis.

Claims Coverage

Two independent claims are provided: clm-00001 (method) and clm-00006 (device). Each includes the same core workflow with three inventive features: generate a virtual object model matched to real space, identify egocentric neglect and determine an egocentric cognitive range using first preliminary stimuli and first reaction information, and identify allocentric neglect and determine an allocentric cognitive range using second preliminary stimuli and second reaction information.

Across both independent claims, the inventive concept is the same: a virtual object model matched to real space is used to sequentially present preliminary virtual stimuli, collect recognition-based reaction information, and determine an egocentric cognitive range followed by an allocentric cognitive range to characterize neglect-related recognition ability.

Stated Advantages

Documented Applications