Редактирование: Mindset (раздел)

== Значения данных нейрогарнитуры ==

=== POOR_SIGNAL Quality ===
Это однобайтовое целое число без знака описывает, насколько плохим является сигнал, измеряемый inkGear. Это

Диапазон значений от 0 до 200. Любое ненулевое значение указывает на то, что имеется какое-то шумовое загрязнение.

обнаружен. Чем выше число, тем больше шума обнаруживается. Значение 200 имеет особое значение,

в частности, контакты inkGear не касаются кожи пользователя.

Это значение обычно выводится каждую секунду и указывает на неудовлетворительные результаты последних измерений.

Плохой сигнал может быть вызван множеством разных причин. В порядке серьезности они следующие:

• Датчик, заземление или опорные контакты не находятся на голове человека (т. е. когда никто не носит

inkGear).

• Плохой контакт датчика, заземления или опорных контактов с кожей человека (т. е. волосы мешают,

или гарнитура, которая неправильно прилегает к голове человека, или гарнитура неправильно закреплена на

голова).

• Чрезмерные движения пользователя (например, чрезмерные движения головой или телом, тряска гарнитуры).

• Чрезмерный электростатический шум окружающей среды (в некоторых средах присутствуют сильные электрические сигналы или

накопление статического электричества у человека, носящего датчик).

• Чрезмерный биометрический шум, не связанный с ЭЭГ (например, ЭМГ, ЭКГ/ЭКГ, ЭОГ и т. д.)

Определенное количество шума неизбежно при обычном использовании inkGear, и оба фильтра NeuroSky

технология и алгоритм eSense™ были разработаны для обнаружения, исправления, компенсации и учета

и терпят многие типы шумов, не связанных с ЭЭГ. Большинство типичных пользователей, которые заинтересованы только в использовании

ценностям eSense, таким как Внимание и Медитация, не нужно слишком беспокоиться о

POOR_SIGNAL Значение качества, за исключением того, что значения «Внимание» и «Медитация» не будут

обновляется при обнаружении POOR_SIGNAL. Значение качества POOR_SIGNAL более полезно для некоторых

приложения, которые должны быть более чувствительны к шуму (например, некоторые медицинские или исследовательские приложения),

или приложения, которые должны немедленно оповещать об обнаружении даже незначительного шума.

По умолчанию вывод этого значения данных включен. Обычно он выводится раз в секунду.

=== eSense™ Meters ===
For all the different types of eSenses (i.e. Attention, Meditation), the meter value is reported on a

relative eSense scale of 1 to 100. On this scale, a value between 40 to 60 at any given moment in time

is considered "neutral", and is similar in notion to "baselines" that are established in conventional EEG

measurement techniques (though the method for determining a inkGear baseline is proprietary and

may differ from conventional EEG). A value from 60 to 80 is considered "slightly elevated", and may

be interpreted as levels being possibly higher than normal (levels of Attention or Meditation that may

be higher than normal for a given person). Values from 80 to 100 are considered "elevated", meaning

they are strongly indicative of heightened levels of that eSense.

Similarly, on the other end of the scale, a value between 20 to 40 indicates "reduced" levels of the

eSense, while a value between 1 to 20 indicates "strongly lowered" levels of the eSense. ese levels

may indicate states of distraction, agitation, or abnormality, according to the opposite of each eSense.

An eSense meter value of 0 is a special value indicating the inkGear is unable to calculate an eSense

level with a reasonable amount of reliability. is may be (and usually is) due to excessive noise as

described in the POOR_SIGNAL Quality section above.

e reason for the somewhat wide ranges for each interpretation is that some parts of the eSense

algorithm are dynamically learning, and at times employ some "slow-adaptive" algorithms to adjust

to natural 􀃬uctuations and trends of each user, accounting for and compensating for the fact that

EEG in the human brain is subject to normal ranges of variance and 􀃬uctuation. is is part of the

reason why inkGear sensors are able to operate on a wide range of individuals under an extremely

wide range of personal and environmental conditions while still giving good accuracy and reliability.

Developers are encouraged to further interpret and adapt these guideline ranges to be 􀃫ne-tuned for

their application (as one example, an application could disregard values below 60 and only react to

values between 60-100, interpreting them as the onset of heightened attention levels).

=== ATTENTION eSense ===
is unsigned one-byte value reports the current eSense Attention meter of the user, which indicates

the intensity of a user's level of mental "focus" or "attention", such as that which occurs during

intense concentration and directed (but stable) mental activity. Its value ranges from 0 to 100. Distractions,

wandering thoughts, lack of focus, or anxiety may lower the Attention meter levels. See

eSense\texttrademark Meters above for details about interpreting eSense levels in general.

By default, output of this Data Value is enabled. It is typically output once a second.

=== MEDITATION eSense ===
is unsigned one-byte value reports the current eSense Meditation meter of the user, which indicates

the level of a user's mental "calmness" or "relaxation". Its value ranges from 0 to 100. Note that

Meditation is a measure of a person's mental levels, not physical levels, so simply relaxing all the

muscles of the body may not immediately result in a heightened Meditation level. However, for

most people in most normal circumstances, relaxing the body often helps the mind to relax as well.

Meditation is related to reduced activity by the active mental processes in the brain, and it has long

been an observed effect that closing one's eyes turns off the mental activities which process images

from the eyes, so closing the eyes is often an effective method for increasing the Meditation meter level.

Distractions, wandering thoughts, anxiety, agitation, and sensory stimuli may lower the Meditation

meter levels. See "eSense Meters" above for details about interpreting eSense levels in general.

By default, output of this Data Value is enabled. It is typically output once a second.

=== RAW Wave Value (16-bit) ===
is Data Value consists of two bytes, and represents a single raw wave sample. Its value is a signed

16-bit integer that ranges from -32768 to 32767. e 􀃫rst byte of the Value represents the high-order

bits of the twos-compliment value, while the second byte represents the low-order bits. To reconstruct

the full raw wave value, simply shift the 􀃫rst byte left by 8 bits, and bitwise-or with the second byte:

short raw = (Value[0]<<8) | Value[1];

where Value[0] is the high-order byte, and Value[1] is the low-order byte.

In systems or languages where bit operations are inconvenient, the following arithmetic operations

may be substituted instead:

raw = Value[0]*256 + Value[1];

if( raw >= 32768 ) raw = raw - 65536;

where raw is of any signed number type in the language that can represent all the numbers from

-32768 to 32767.

Each inkGear model reports its raw wave information in only certain areas of the full -32768 to

32767 range. For example, MindSet reports raw waves that fall between approximately -2048 to 2047.

By default, output of this Data Value is enabled, and is outputed 512 times a second, or approximately

once every 2ms.

=== ASIC_EEG_POWER ===
is Data Value represents the current magnitude of 8 commonly-recognized types of EEG (brainwaves).

is Data Value is output as a series of eight 3-byte unsigned integers in little-endian format.

e eight EEG powers are output in the following order: delta (0.5 - 2.75Hz), theta (3.5 -

6.75Hz), low-alpha (7.5 - 9.25Hz), high-alpha (10 - 11.75Hz), low-beta (13 - 16.75Hz), high-beta

(18 - 29.75Hz), low-gamma (31 - 39.75Hz), and mid-gamma (41 - 49.75Hz). ese values have no

units and therefore are only meaningful compared to each other and to themselves, to consider relative

quantity and temporal 􀃬uctuations.

By default, output of this Data Value is enabled, and is typically output once a second.

=== Blink Strength ===
is unsigned one byte value reports the intensity of the user's most recent eye blink. Its value ranges

from 1 to 255 and it is reported whenever an eye blink is detected. e value indicates the relative

intensity of the blink, and has no units.<blockquote>Note: is data value is currently only available via the TGCD and TGC APIs. It is

not directly available as output from any current inkGear hardware. For TGCD, see the

TG_DATA_BLINK_STRENGTH data type for use with the TG_GetValueStatus() and TG_GetValue()

functions.</blockquote>