Estimation of Emotional Arousal Changes of a Group of Individuals During Movie Screening Using Steady-State Visual-Evoked Potential

Neurocinematics is an emerging discipline in neuroscience, which aims to provide new filmmaking techniques by analyzing the brain activities of a group of audiences. Several neurocinematics studies attempted to track temporal changes in mental states during movie screening; however, it is still needed to develop efficient and robust electroencephalography (EEG) features for tracking brain states precisely over a long period. This study proposes a novel method for estimating emotional arousal changes in a group of individuals during movie screening by employing steady-state visual evoked potential (SSVEP), which is a widely used EEG response elicited by the presentation of periodic visual stimuli. Previous studies have reported that the emotional arousal of each individual modulates the strength of SSVEP responses. Based on this phenomenon, movie clips were superimposed on a background, eliciting an SSVEP response with a specific frequency. Two emotionally arousing movie clips were presented to six healthy male participants, while EEG signals were recorded from the occipital channels. We then investigated whether the movie scenes that elicited higher SSVEP responses coincided well with those rated as the most impressive scenes by 37 viewers in a separate experimental session. Our results showed that the SSVEP response averaged across six participants could accurately predict the overall impressiveness of each movie, evaluated with a much larger group of individuals.

Download Full-text

Olfactory Modulation of Steady- State Visual Evoked Potential Topography in Comparison with Differences in Odor Sensitivity

Journal of Psychophysiology ◽

10.1027//0269-8803.16.2.71 ◽

2002 ◽

Vol 16 (2) ◽

pp. 71-81 ◽

Cited By ~ 2

Author(s):

Caroline M. Owen ◽

John Patterson ◽

Richard B. Silberstein

Keyword(s):

Steady State ◽

Visual Evoked Potential ◽

Evoked Potential ◽

Behavioral Responses ◽

Simultaneous Recording ◽

Odor Concentration ◽

Odor Detection ◽

Detection Response ◽

Response Groups ◽

Visual Evoked

Summary Research was undertaken to determine whether olfactory stimulation can alter steady-state visual evoked potential (SSVEP) topography. Odor-air and air-only stimuli were used to determine whether the SSVEP would be altered when odor was present. Comparisons were also made of the topographic activation associated with air and odor stimulation, with the view toward determining whether the revealed topographic activity would differentiate levels of olfactory sensitivity by clearly identifying supra- and subthreshold odor responses. Using a continuous respiration olfactometer (CRO) to precisely deliver an odor or air stimulus synchronously with the natural respiration, air or odor (n-butanol) was randomly delivered into the inspiratory airstream during the simultaneous recording of SSVEPs and subjective behavioral responses. Subjects were placed in groups based on subjective odor detection response: “yes” and “no” detection groups. In comparison to air, SSVEP topography revealed cortical changes in response to odor stimulation for both response groups, with topographic changes evident for those unable to perceive the odor, showing the presence of a subconscious physiological odor detection response. Differences in regional SSVEP topography were shown for those who reported smelling the odor compared with those who remained unaware of the odor. These changes revealed olfactory modulation of SSVEP topography related to odor awareness and sensitivity and therefore odor concentration relative to thresholds.

Download Full-text

Asynchronous Steady-State Visual Evoked Potential based Brain-Computer Interface: Control of a 2 DoF Artificial Upper Limb

Frontiers in Neuroscience ◽

10.3389/conf.fnins.2010.05.00024 ◽

1900 ◽

Vol 4 ◽

Author(s):

Muller-Putz Gernot

Keyword(s):

Steady State ◽

Upper Limb ◽

Visual Evoked Potential ◽

Evoked Potential ◽

Brain Computer Interface ◽

Computer Interface ◽

Interface Control ◽

Visual Evoked

Download Full-text

Forced-Choice Preferential Looking and Visual Evoked Potential Acuities of Visually Impaired Children

Journal of Visual Impairment & Blindness ◽

10.1177/0145482x9208600113 ◽

1992 ◽

Vol 86 (1) ◽

pp. 21-24 ◽

Cited By ~ 3

Author(s):

M.C. Bane ◽

E.E. Birch

Keyword(s):

Steady State ◽

Success Rate ◽

Visually Impaired ◽

Visual Evoked Potential ◽

Evoked Potential ◽

Forced Choice ◽

Preferential Looking ◽

Impaired Children ◽

Visually Impaired Children ◽

Visual Evoked

In the authors’ previous study, the success rate for forced-choice preferential looking (FPL) with preverbal visually impaired children was higher than that with pattern visual evoked potential (VEP). The current study sought to increase the VEP success rate and to improve agreement between the FPL and the VEP acuity estimates using horizontal-bar stimuli for children with nystagmus and steady-state presentation for those without nystagmus.

Download Full-text

Steady-State Visual Evoked Potential Classification Using Complex Valued Convolutional Neural Networks

Sensors ◽

10.3390/s21165309 ◽

2021 ◽

Vol 21 (16) ◽

pp. 5309

Author(s):

Akira Ikeda ◽

Yoshikazu Washizawa

Keyword(s):

Steady State ◽

Information Transfer ◽

Visual Evoked Potential ◽

Evoked Potential ◽

Extraction Methods ◽

Stimulation Frequency ◽

Event Related Potential ◽

Spectrum Estimation ◽

Complex Valued ◽

Visual Evoked

The steady-state visual evoked potential (SSVEP), which is a kind of event-related potential in electroencephalograms (EEGs), has been applied to brain–computer interfaces (BCIs). SSVEP-based BCIs currently perform the best in terms of information transfer rate (ITR) among various BCI implementation methods. Canonical component analysis (CCA) or spectrum estimation, such as the Fourier transform, and their extensions have been used to extract features of SSVEPs. However, these signal extraction methods have a limitation in the available stimulation frequency; thus, the number of commands is limited. In this paper, we propose a complex valued convolutional neural network (CVCNN) to overcome the limitation of SSVEP-based BCIs. The experimental results demonstrate that the proposed method overcomes the limitation of the stimulation frequency, and it outperforms conventional SSVEP feature extraction methods.

Download Full-text