Brain Research Technologies
Baycrest is unique in many ways, and this extends to our neuroimaging and research technology capacity. With a research dedicated MRI, EEG, MEG, TMS and Eye Tracker, we are leveraged to be one of the leading institutions with such brain imaging power. We offer our facilities to other institutions, industry and academia on a user-cost basis in order to support your research and development goals.
Benefits of Baycrest’s Research Technology & Facilities:
- Expert knowledge and support: All of Baycrest’s neuroimaging modalities and research equipment are complemented with a support team.
- One-stop shop: We offer MRI (structural, functional, diffusion tensor), EEG, MEG, and Eye Tracking, conveniently at a single location.
- Ancillary equipment: Each system is equipped with its own ancillary equipment in place, that supports easy set-up and study delivery.
- Add-ons: Our MRI is equipped with the most recent neuroimaging add-ons, such as simultaneous collection of EEG or Eye Tracking data.
Magnetic Resonance Imaging (MRI) – Structural, Functional & Diffusion Tensor
Structural, Functional and Diffusion Tensor Magnetic Resonance Imaging (MRI) are all non-invasive method of recording brain signals and a valuable tool for more precise localization of cognitive and affective processes. It uses strong magnetic fields and non-ionizing radiation in the radio frequency range to measure signal changes in the brain that are due to changing neural activity.
A recent addition to our MRI lab is the capacity to collect multimodal data, either EEG (Brain Products) or Eye Tracking (SR Research) in conjunction with fMRI data. These state-of-the-art simultaneous data collection systems offer the user an advantage in terms of data insight, quantity and quality.
More details about our facilities & equipment:
Baycrest’s Siemens 3T Magnetic Resonance Imaging (MRI) scanner was obtained as a result of donations from the Weinbaum, Ross and Rotman families.
Electroencephalography (EEG) is a reliable method of measuring electrical activity in the brain through electrodes placed on the scalp. It is a test of brain function that measures voltage differences between different parts of the brain, which can then be used clinically for gross correlation of brain activity. The EEG detects activity of large groups of neurons, which produces a greater voltage than the firing of an individual neuron. As a non-invasive method of obtaining information on brain activity related to stimuli, it is relatively easily used for experimentation with subjects. Furthermore, its capability of detecting changes in electrical activity on a millisecond-level leads to high temporal resolution. The equipment can be used to obtain Event-Related Potentials (ERP) to study structural basis, functional localization and temporal unfolding of human thought, feelings and reactions.
There are currently two EEG systems available for use in the ERP (event-related potentials) lab at Baycrest:
Each systems offers a unique opportunity to collect multi-channel recordings using a special cap that contains electrodes to record brain activity. Additionally, we have an eye tracking system that is EEG compatible, thus you are able to collect these data types simultaneously.
The EEG (and MEG) equipment was obtained through the University of Toronto Functional Imaging Research Network (FIRN) with over $21 million of matched funding from the Canada Foundation for Innovation and the Ontario Innovations Trust. The Baycrest portion of this grant was over $3 million.
Magnetoencepholography (MEG) is an imaging technique used to measure the small magnetic fields resulting from electrical activity in brain cells. Clinically, MEG may be used to detect and localize spiking activity in patients with epilepsy and in localizing brain regions involved in sensory processing and linguistic ability in surgical planning. In research, MEG is primarily used in the measurement of time courses of activity because of its high temporal resolution. MEG enables accurate pinpointing of sources in primary auditory, somatosensory and motor areas.
Please visit the CTF Systems Inc website for more information about the MEG system and facilities available at Baycrest.
We also offer an MEG compatible eye tracking system that enables the simultaneous collect of the respective data types.
The MEG (and EEG) equipment was obtained through the University of Toronto Functional Imaging Research Network (FIRN) with over $21 million of matched funding from the Canada Foundation for Innovation and the Ontario Innovations Trust. The Baycrest portion of this grant was over $3 million.
Transcranial Magnetic Stimulation (TMS)
Transcranial magnetic stimulation (TMS) is a non-invasive technique which uses a rapidly changing magnetic field to induce, through the skull, an electrical current in a localized region of the cerebral cortex. This allows researchers to study the functioning and interconnections of the human brain. A variant of TMS, repetitive transcranial magnetic stimulation (rTMS), has been tested as a treatment tool for various neurological and psychiatric disorders including migraines, depression and movement disorders.
Researchers use eyetrackers to monitor where a person looks, when and for how long. The movement of the eyes is influenced by “bottom-up” information, such as the contrast or specific colors present within a picture. Eye movements are also influenced by “top-down” information such as task instructions, attention, and memory. Examining where people look can provide information about the integrity of cognitive processing.
Eye Tracking Equipment
2 Standalone Eyelink 2 Eye Trackers from SR Research
- Sampling rate of 250 or 500Hz
- Average accuracy of < 0.5 degrees
3 Remote Eyelink 1000 Imaging Eye Trackers
- Combined with MEG, fMRI and EEG
- Sampling rate of 500, 1000 or 2000
- Average accuracy between 0.25 – 0.5 degrees
- Colorimeter – for setting up screen brightness and contrast
- Simultaneous Eye Tracking systems for fMRI, EEG and MEG
- Eye Tracker support service – for training and ongoing technical support
Find out more about the SR Research Eye Tracking Systems we have at Baycrest.
The Eye Tracker was obtained as a result of funding supported by the participants of Sportsfest 2001.
Location & Contact Information
Baycrest Health Sciences