Biofeedback instruments - alpha theta EEG brain wave - efficient biofeedback equipment since 1972.

Topic labels include: biofeedback, alpha, theta, alpha/theta, brain wave, brain wave biofeedback, EEG, EEG biofeedback, beta, delta, alpha brain wave biofeedback, brainwave, alpha brain wave, instrument, instruments, equipment, device, machine.

MOE
ELECTRONICS RESEARCH AND PRODUCTION

---Out of Stock---

We are undergoing engineering updates, and doing some artificial intelligence research ( . ). Within a year or so we will once again be available for repairs or accessories, or to re-sell used equipment; in support of our thousands of past customers. New instruments may be available within 2 or 3 years.

The instruments shown may have a new appearance... performance and prices would be similar... We are considering combining the functions into a single instrument, which would be less expensive than the combined listed prices.

If you wish to go on our waiting list, simply tell us which instrument(s) you are interested in... do not send any payment... we will contact you before the next production cycle, to see if you are still interested.

Thank-You for your interest in Biofeedback.

Mike Wilber,
  MOE

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Brainwave

eeg 3   close-up view

EEG 3 Features     $534 Complete    currently out of stock

Precision Brainwave Detection adjustable corners can be set for accurate detection of alpha, theta, or virtually any desired range of brainwaves from 1 to 30 Hz allows for gradually lowering the high corner from beta to alpha is stable enough for a range setting of 9.9 to 10.1 Hz

Complete Rejection the system does not respond to brainwaves outside of the selected range

  feedback on
response diagrambrainwave frequency
delta | theta | alpha | beta

Dominant Feedback training for a given range automatically requires that simultaneous brainwave components outside the selected range be weaker than those being detected

Artifact Blanking noise from movement generally interrupts feedback, producing little or no false feedback

Three Types of Audio Feedback Cues (tone, pink noise and patter) combinable in any proportions improves learning by reducing the boredom that can result from attending to a single mode for prolonged periods

Visual Feedback Array instantly responds to increasing strength of brainwaves within the selected range shows the other dominant moments to be above or below the selected range

Sensitivity Control an adjustable threshold for gradually raising the strength of brainwaves required for feedback

Built-In Simulator an artificial source of brainwaves can be set to demonstrate the feedback you would get from alpha rhythms of a given strength or can be rapidly manipulated to demonstrate brainwave dynamics

Headphone Jack for stereo headset (not included) silences the built-in speaker
 
 

alpha detector +    close-up view

Alpha Detector Features A complete brainwave biofeedback system -- $295    currently out of stock

A Simplified, Minimum-Cost Version of the EEG 3

Precision Detection with selection of fixed ranges for alpha, theta, or alpha plus lower beta (helpful for getting started if alpha is scarce)

Complete Rejection, Dominant Feedback, and Artifact Blanking, as in the EEG 3

FM Tone Feedback (as in the EEG 3) pitch of tone warbles when brainwaves are detected within the selected range; more deeply and loudly with stronger brainwaves (instant mode) or the pitch drops smoothly with increasing short-term percent-time (smoothed mode)

Visual Feedback Indicator blinks more brightly with stronger detected brainwaves (instant mode) or glows more brightly with improving short-term percent-time (smoothed mode)

Sensitivity Control, Built-in Speaker & Headphone Jack as in EEG 3
 
 

PI 1    close-up view

EEG PROGRESS INDICATOR                              $139             4 units in stock

PI 1 Features

provides data for plotting progress in EEG records

combines percent-time and average strength of brainwaves during percent-time into a single "relative relaxation" figure

adjustable period for data gathering, from 3 to 15 minutes

shows figure at end of period, and holds it until reset

for use with EEG 3 or Alpha Detector (Alpha Detector requires %-time output ... add $10)
 
 

Pricing

Description Price
EEG 3 $534
Alpha Detector Plus $295
PI 1 $139

Contact Information

MOE
5044 Wilder Dr.
Soquel, CA 95073
USA

Telephone
831-475-7352 (usually voice mail)
Electronic mail
acmike@gmail.com
 

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Specifications

EEG 3

The following specifications hold true over a temperature range of at least 20 to 110 º F, except as noted, and for the entire battery life.

SOURCE RESISTANCE: 5K to 40K, depending on care of application; 10K/11K typical

ARTIFACT LEVELS, varying with care of application;

Saline or Paste: from less than 1 to 3 uvpp

DIFFERENTIAL INPUT IMPEDANCE: effectively infinite for source resistances below 500K, otherwise, 500K or more

COMMON MODE INPUT IMPEDANCE:

approx. 1G @ 60Hz

COMMON MODE REJECTION;

With Inputs shorted: 140db @ 60Hz

With worst-case source imbalance: 100db @ 60Hz

With 20K/22K source imbalance: 120db @ 60Hz

ADDITIONAL FILTER REJECTION:

32db @ 50Hz

46db @ 60Hz

ANALOG PASS BAND FREQUENCY RESPONSE: 6 to 26Hz, +/-1.5db
         -6db @ 3.6 & 30 Hz   -12db @ 1.5 Hz

CIRCUIT NOISE; In use: less than 2uvpp = .7uv

      Inputs shorted: 1.5 uvpp = .53 uv, typical

SIMULATOR AND ANALYZER FREQUENCY RANGE: 1 to 30Hz

TUNING ACCURACY;

Analyzer: 20% from 5 to 30Hz from 20 to 110°F,10% @ 70°F

Simulator: 5% from 5 to 15Hz from 20 to 110°F, 2% typical @10Hz

STABLE TUNING RESOLUTION;

In Use (degraded by 2uvpp noise):

15% with a 10uvpp input

3% with a 100uvpp input

Simulator-Analyzer: 1% at any amplitude

SENSITIVITY;

Accuracy: 5%

Range: 3 to 100uvpp

OFF DELAY RANGE: .1 to 1.5 seconds

FEEDBACK;

Audio: amplitude modulation of a mixture of any proportions of white noise, fm tone, and patter through a built-in speaker, or out a stereo headset jack

Visual: 5 LEDs: one red indicating input below low corner frequency, one green indicating input above high corner frequency, and three yellow indicating input within selected frequency range; at sensitivity threshold amplitude, 1.5 times threshold, and 2 times threshold amplitude

OTHER OUTPUTS:

raw EEG with .025vpp output/uvpp input

high pass analog filtered EEG with .02vpp/uvpp

high pass and low pass analog filtered EEG with .02vpp/uvpp (sensitivity set at 28uvpp)

percent-time pulses independent of delay setting

OUTPUT IMPEDANCE;

Audio: 100 ohms

Percent-time: 100K

Linear Output: 1K

OUTPUT SHORT CIRCUIT DURATION: indefinite, all outputs

BATTERIES: two standard 9 volt

ALKALINE BATTERY LIFE: 25 hours, full volume; 50 hours, typical

DIMENSIONS: 10" wide, 8" deep, 3.5" tall

WEIGHT: 2 lbs
 
 

Alpha Detector Plus

SOURCE RESISTANCE: see EEG 3 specs above

DIFFERENTIAL INPUT IMPEDANCE: see EEG 3 specs above

COMMON MODE INPUT IMPEDANCE: see EEG 3 specs above

COMMON MODE REJECTION: see EEG 3 specs above

TOTAL INITIAL 60Hz REJECTION: 160db

TOTAL INITIAL 50 Hz REJECTION: 150db

NOISE: see EEG 3 specs above

SENSITIVITY: 2 to 100 uvpp = .7 to 30 uvrms

SELECTIVITY: infinite

FREQUENCY RANGE;

Alpha: 7.5 +/- 1/2 Hz to 13 Hz +/- 1/2 Hz

Theta: 4 +/- 1/2 Hz to 7.5 Hz +/- 1/2 Hz (alpha/theta overlap slightly)

Alpha + Lower Beta: 7.5 +/- 1/2 Hz to 16 Hz +/- 1 Hz

BATTERIES: one standard 9 volt

ALKALINE BATTERY LIFE: 50 to 80 hours
 
 

PI 1

ANALYSIS PERIOD: 2.5 to 15 minutes

TEMPERATURE STABILITY: 1% variation from 40 to 90 º F

BATTERY: one standard 9 volt

ALKALINE BATTERY LIFE: 280 hours
 

About Biofeedback (Menu Bar ON/OFF)
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