ActiveTwo is a powerful high-resolution biosignal acquisition system that incorporates some revolutionary concepts. Active electrode technology is just one of the significant innovations in the ActiveTwo system. By placing active electronics within millimeters of the actual electrode contact, ActiveTwo virtually eliminates the need to prepare the scalp before applying electrodes. This can cut measurement preparation time by an estimated 15 -30 minutes for most laboratories!
ActiveTwo can also be equipped with additional sensors for respiration, skin conductance, temperature, plethysmograph (pulse) and other parameters. An optional isolated analog input box makes it possible to acquire almost any type of signal synchronously with the signals sampled by the ActiveTwo A/D box.
As an added benefit, ActiveTwo comes with powerful data acquisition software developed in National Instruments' LabView. We provide the compiled software so you do not need to own LabView, and you do not need to be a programmer to operate the system. For those laboratories with programming resources, the source code is provided so that you can add any special features that you may need.
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The Clifton / Ashby Lab is one of three EEG labs in the UMass Psychology Department. Our lab has a 64+8 channel BioSemi ActiveTwo system, and is a shared facility used by multiple researchers. It is managed by Jane Ashby and Charles Clifton.
The efforts of the Human Development Lab focus on two programs of research investigating the development of sensory processing (auditory and somatosensory) and cognitive abilities in children during the period of 5 years to 18 years of age utilizing electroencephalography (EEG) and event-related potentials (ERPs) methodologies as well as traditional behavioral measures obtained from a variety of neuropsychological assessments.
Kevin Spencer's basic interest is in understanding the relationships between the dynamics of neural systems and cognitive processes. I use electrophysiology and neural network modeling to investigate three areas: 1) neural coding by temporal synchrony; 2) attentional control; and 3) executive control.
Attention is powerfully influenced by emotional perceptions and states, just as attention promotes the ability to control and modulate emotions. Research has documented these processes both in terms of facilitation and interference effects. In our research, we are using ERPs to examine several questions about the interplay between emotion and attention in adults and 5-7 year-old children.
SCCN develops and applies methods for extracting new information about event-related and spontaneous brain dynamics from high-density EEG and other brain imaging data. We have pioneered applications of Independent Component Analysis and time/frequency analysis to EEG, MEG, and fMRI data, and have developed and distribute the freely available, open source EEGLAB environment for Matlab.
We are conducting a resting EEG experiment on three-year old children. We are interested in whether there are neurophysiological correlates related to temperament in three year-old children. Specifically, we are interested in whether the same hemispheric asymmetries are found in children who are low in positive affect as are found in both depressed adults and in infants of depressed mothers. Related to this, we are interested in determining if these asymmetries are related to the later development of depression.
Our research focuses on visual spatial attention, visual short-term memory, and central attentional limitations using the event-related potentials (ERPs) technique. Visual event-related potentials (ERPs) provide powerful tools to study the mechanisms mediating the deployment of visual spatial attention, visual short-term memory, and interactions between spatial attention and central attention. In our recent work we used the N2pc ERP component as a moment-to-moment index of the deployment of visual spatial attention.