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Full-Text Articles in Neuroscience and Neurobiology
Optimization Of Simultaneous Facial Emg And Fmri, Maggie Prenger
Optimization Of Simultaneous Facial Emg And Fmri, Maggie Prenger
Western Research Forum
The scientific study of emotion began in the 19th century with Duchenne’s study of the “universal and immutable” language of facial expressions. In The Mechanism of Human Physiognomy, he manipulates human facial expressions by electrically stimulating facial muscles. Facial electromyography (EMG) is a modern technique that is reminiscent of Duchenne’s work; it allows researchers to measure facial muscle activity through surface recording electrodes, providing a real-time measure of natural emotional reactions.
Although facial EMG is a reliable measure of emotional behavior, it fails to provide any information about brain activity responsible for emotional processes. Functional magnetic resonance imaging (fMRI) …
P24. The Birds And The Beats: Perception Of A Beat In An Avian Model, Brendon Samuels
P24. The Birds And The Beats: Perception Of A Beat In An Avian Model, Brendon Samuels
Western Research Forum
Background: Beat perception is a complex cognitive skill that enables humans to “feel” the beat in music, and is an essential component of synchronization of behavior and dance. The mechanisms in the human brain that facilitate beat perception are not entirely understood, and have only been studied thus far using non-invasive techniques. Some animals, such as songbirds, also seem to be able to detect a beat in rhythms, though this has never been formally tested independent of motor synchronization.
Methods: An operant experiment is used to assess if European starlings, a type of songbird, are capable of categorizing …
P27. Acute Impact Of An Extremely Low Frequency Magnetic Stimulus On Human Neurophysiological Function - Magnetophosphene Perception, Cadence M. Baker
P27. Acute Impact Of An Extremely Low Frequency Magnetic Stimulus On Human Neurophysiological Function - Magnetophosphene Perception, Cadence M. Baker
Western Research Forum
Background: Magnetophosphenes are classified as colourless, flickering lights that are perceived with closed eyes in the dark, and upon exposure to a magnetic field (MF). Uncertainties exist involving the MF threshold for magnetophosphene perception.
Methods: Forty subjects will be enrolled in this experiment aiming to provide a frequency-response curve of magnetophosphene perception under MF exposure. Subjects will sit in a whole head MF exposure device wearing a 64-channel MRI-compatible EEG cap. Subjects will be exposed to a MF with a frequency of 5-300 Hz, in the form of an increasing flux density ramp (increasing magnetic field flux density from 0-100 …