Cognitive function training unit
View Patent ↗A cognitive function training unit including an eye-target showing unit for showing a movable eye-target on a display disposed in front of the subject's eye, an eye movement measuring unit for measuring a position and/or movement of the subject's eye, and a judgment unit for judging whether or not the subject can fixedly look at or follow the eye-target based on the position and/or the movement of the eye-target shown on the display and the position and/or the movement of the subject's eye measured by the eye movement measuring unit, and the eye-target showing unit shows the eye-target repeatedly while changing the position and/or the movement of the eye-target according to a judgment result of the judgment unit. Therefore, it is possible to show a suitable eye-target according to a symptom of a patient, whereby it is possible to conduct training efficiently.
1. A cognitive function training unit for training cognitive function of a subject comprising:
an eye-target showing means configured to show a movable eye-target on a display disposed in front of the subject's eye;
an eye movement measuring means connected to an imaging device, the eye movement measuring means configured to measure at least one of a position and movement of the subject's eye by manipulating an image of the subject's eye obtained by said imaging device; and
a judgment means configured to judge whether the subject can follow the eye-target based on at least one of a position and movement of the eye-target shown on said display and at least one of the position and the movement of the subject's eye measured by said eye movement measuring means,
wherein said eye-target showing means is configured to show the eye-target repeatedly while changing at least one of the horizontal position, horizontal movement, amplitude and display time of the eye-target according to a judgment result of said judgment means, and
wherein said judgment means is configured to judge that the subject cannot follow the eye-target when at least one of an eye position and an eye velocity of the subject measured by said eye movement measuring means is outside a predetermined variation range, and
wherein said eye-target showing means is configured to change the position and/or the movement of the eye-target so that the subject can follow the eye-target, when said judgment means judges that the subject cannot follow the eye-target.
2. The cognitive function training unit as set forth in claim 1 , wherein
said eye-target showing means is configured to repeatedly show an eye-target which appears on a left side of a screen of said display and then moves to a right side,
said eye-target showing means is configured to move a position at which the eye-target appears on the screen to the right when said judgment means judges that the subject can not follow the eye-target.
3. The cognitive function training unit as set forth in claim 1 , wherein
said eye-target showing means is configured to repeatedly show an eye-target which appears on a left side of a screen of said display and then moves to a right side,
said eye-target showing means is configured to slow a movement speed of the eye-target when said judgment means judges that the subject cannot follow the eye-target.
4. The cognitive function training unit as set forth in claim 1 , wherein
said judgment means is configured to judge severity of the subject according to a degree that the subject cannot follow the eye-target,
said eye-target showing means is configured to change the position and/or the movement of the eye-target according to the severity.
5. The cognitive function training unit as set forth in claim 4 , wherein
said cognitive function training unit has a judgment mode configured to judge the severity of the subject and a rehabilitation mode configured for training the cognitive function of the subject,
in the judgment mode, said eye-target showing means being configured to show the eye-target in a predetermined test pattern and said judgment means being configured to judge the severity of the subject according to the degree that the subject cannot follow the eye-target,
in the rehabilitation mode, said eye-target showing means being configured to change at last one of the position and the movement of the eye-target according to the severity of the subject judged in the judgment mode.
6. The cognitive function training unit as set forth in claim 1 , wherein
said eye-target showing means is configured to show an eye target of a 3-dimensional image on the display.
7. The cognitive function training unit as set forth in claim 1 , wherein
said display, said eye-target showing means, said eye movement measuring means, and said judgment means are housed in a case, said case being able to be mounted on a head of the subject.
8. The cognitive function training unit as set forth in claim 1 , wherein
said eye-target showing means is configured to repeatedly show an eye-target which appears on a right side of a screen of said display and then moves to a left side,
said eye-target showing means is configured to move a position at which the eye-target appears on the screen to the left when said judgment means judges that the subject cannot follow the eye-target.
9. The cognitive function training unit as set forth in claim 1 , wherein
said eye-target showing means is configured to repeatedly show an eye-target which appears on a right side of a screen of said display and then moves to a left side,
said eye-target showing means is configured to slow a movement speed of the eye-target when said judgment means judges that the subject cannot follow the eye-target.
10. A cognitive function training unit for training cognitive function of a subject comprising:
an eye-target showing means configured to show a movable eye-target on a display disposed in front of the subject's eye;
an eye movement measuring means connected to an imaging device, the eye movement measuring means configured to measure at least one of a position and movement of the subject's eye by manipulating an image of the subject's eye obtained by said imaging device; and
a judgment means configured to judge whether the subject can perform at least one of:
fixedly look at the eye-target based on at least one of the position and the movement of the eye-target shown on said display and at least one of the position and the movement of the subject's eye measured by said eye movement measuring means, and
follow the eye-target based on at least one of the position and the movement of the eye-target shown on said display and at least one of the position and the movement of the subject's eye measured by said eye movement measuring means,
wherein said eye-target showing means is configured to show the eye-target repeatedly while changing at least one of the position and the movement of the eye-target according to a judgment result of said judgment means,
wherein said judgment means is configured to detect an eye position of the subject and a showing position of the eye-target, and calibrate a correlation between a coordinate system of the eye-movement measuring means and a coordinate system of the eye-target showing means based upon the detected eye-position and the showing position of the eye-target, and
wherein said judgment means judges that the subject cannot follow the eye-target when at least one of an eye position and an eye velocity of the subject measured by said eye movement measuring means is outside a predetermined variation range.