Copyright © 2013, 2015 by Douglas Dailey
Last Modified: Oct 19, 2015
TAG Sync for Thought Technology’s BioGraph Infiniti has new
Combining EEG, temperature and skin conductance training:
During regular 2 channel synchrony training drops in skin
temperature or increases in skin conductivity set off a yellow
light in the middle of the display. It can also sound an audible
alarm or pause video feedback. The role of the anterior
cingulate in GSR (galvanic skin responses) and in the salience
networks makes its monitoring and training during
neurofeedback a possibility.
Phase reset candidates trigger alerts:
You can individually set thresholds for reward 1 (e.g., theta) and
reward 2 (e.g., alpha) so that sudden large simultaneous
increases in synchrony can be noted.
Cortical activity contours are saved between sessions:
All 12 inhibit bins keep their adjustable settings between
sessions so that beta spindling, irritable cortex or other
conditions can be managed more easily.
Full DVD and AVI capability are now available with TAG Sync
on a single laptop monitor (see the image on the right). A
minimum resolution of 1200x800 is recommended.
The suite contains 15 screens, 4 channel sets, and two sets of
animated photo puzzles.
Z Score Training:
If you have the Neuroguide DLL you can alternate z-score
training with TAG sync. In this screen design, setup for
training between Fz and Pz, the instruments are in four
groups, each with a green light in the center of the screen
when the measurements are within the designated z- score
range. If their is an excursion outside of the z-score ranges
or if an artifact intervenes, then the red light at bottom
middle of the screen goes off. Sounds can be linked to
each of the instruments or the instruments can control a
DVD on a second monitor. The four groups of z-score
measurements that are monitored are Absolute Power of
EEG Ch1: Absolute Power of EEG Ch2, Coherence
between EEG Ch1 and 2, and Phase between EEG Ch1
This can be a useful tool for working with TAG Synchrony
since one of the premises is that effective global broad
band synchrony reduces intra-subject variability (i.e., z-
This screen is discontinued. It integrates with the TAG
Sync for Infiniti package. Contact me if you are interested.
Ultra/Infra Low Frequency, SMR, and other single channel training:
This product includes screens for dual and single monitor with choice of feedback being all audio, or DVD/AVI. With Thought Technology’s
EEG-Z3 you can do ULF. Because this is a TAG screen you can monitor and train on a second frequency as well. Because the resonant
frequencies of the resting state networks are around 0.01-0.10 Hz you can simultaneously feedback the phase-amplitude coupling of higher
frequency components. This is already done in the regular two channel TAG sync screens. The single channel TAG screen sets also having
the advantage additional inhibit bins. With BioGraph 6 you can record the shaping of your inhibits around events such as beta spindling.
Like the TAGx2 2-channel screens, the TAGx1 single channel screens also come with GSR (skin conductivity) and Temperature training
abilities. Some forms of reactive processing may be more easily monitored or trained with peripheral measures than is straight EEG
Heart Rate Variability (HRV):
HRV is a very important topic in discussions of global broad-band synchrony (GBBS) such as TAG Sync (x1 or x2). There is a special
pacemaker cell that is found only in the heart and in the thalamus (cf. Buzsaki). The HRV resonant frequency of 0.1 Hz (= 6 per minute).
Phase-amplitude coupling between the nested frequencies from 6/minute (0.1 Hz) to 40 per second (40 Hz) is so significant that it correlates
with system-wide states of hypersympathecotonia and hyperparasympathecotonia. Fight or flight and freeze reactions affect the EEG
spectral power distribution in alpha and theta ranges. Such reactions also alter slow wave sleep activity whose structure reverberates
throughout the following day. Such reactions affect the imposition of 0.05 Hz (20 sec long) resting state oscillations on tests of variables of
Bioexplorer version now available
Aug 28, 2013