MRI data was collected using a 3.0-T whole-body scanner (Trio-System), equipped for echo planar imaging (Siemens Medical Systems, Iselin NJ) with a 32 channel, 3-axis gradient head coil. Foam cushions were used to restrict head movements. Task images were displayed using a rear projection system and E-Prime stimulus presentation software (Psychology Software Tools; http://www.psychologysoftware-tools.mybigcommerce.com ). Following automated scout and shimming procedures, two high-resolution 3D MPRAGE sequences (TR=2530ms, TE=3.39ms, flip angle=7o, voxel size = 1.3×1.0×1.3 mm) were collected for positioning of subsequent scans. fMRI images were acquired using T2* -weighted sequence (27 axial slices aligned perpendicular to the plane intersecting the anterior and posterior commissures, 5 mm thickness, skip 1 mm, TE=30ms, TR=1600ms, flip angle = 90o).
E prime stimulus presentation software
Manufactured by Psychology Software Tools
Sourced in United States
E-Prime is a stimulus presentation software designed for conducting psychological experiments. It allows researchers to create and run computerized experiments, present stimuli, and collect participant responses. E-Prime provides a user-friendly interface for designing experiments, with tools for programming task sequences, timing, and data collection.
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Lab products found in correlation
4 protocols using e prime stimulus presentation software
1
3T fMRI Brain Imaging Protocol for Cognitive Tasks
2
Facial Expression Perception Study
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The experimental task was programmed using E-prime stimulus presentation software (Psychology Software Tools, Inc., Pittsburgh, PA, USA). The faces were presented on a 19.7-inch CRT monitor. The display resolution was set to 1024 × 768 pixels, with a refresh rate of 85 Hz. Participants were asked to put their head on a chin strap set such that the distance between the eyes and the screen was 70 cm. Participants’ eye movements were monocularly recorded (right eye, Pupil-CR tracking mode) at a sampling rate of 250 Hz using the eye-tracking system EyeLink 1000 Plus Desktop Mount (SR Research Ltd., Mississauga, ON, Canada).
3
Negative and Neutral Image Perception Study
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Task stimuli consisted of 15 negative photographs and 15 neutral photographs selected from the IAPS [50 (link)]. Pictures were presented using the E-Prime stimulus presentation software (Psychology Software Tools, Sharpsburg, PA). A small mirror was attached to the head coil enabling the viewing of projected images onto a screen while in the scanner. Negative photographs (Pictures: 2053, 3051, 3102, 3120, 3350, 3500, 35550, 6831, 9040, 9050, 9252, 9300, 9400, 9810, and 9921) depicted bodily illness and injury (ten photographs), acts of aggression (two photographs), members of hate groups (one photograph), transportation accidents (one photograph), and human waste (one photograph). Neutral photographs (Pictures: 5720, 5800, 7000, 7006, 7010, 7040, 7060, 7090, 7100, 7130, 7150, 7217, 7490, 7500, 9210) depicted inanimate objects (ten photographs) or neutral scenes (five photographs).
4
Inhibitory Control Assessment via Modified Stroop Task
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The modified Stroop task assesses inhibitory control and was conducted using Eprime Stimulus Presentation Software (Psychology Software Tools, Pittsburgh, PA). The test is comprised of three conditions: Word, Color, and Color-Word. In the Word condition, participants responded to the meaning of a target word (i.e., ‘red,’ ‘green,’ or ‘blue’ displayed in black), as quickly as possible. In the Color condition, participants responded to the colors in which an array of X’s were displayed (i.e., XXXX displayed in red), as quickly as possible. The Color and Word conditions assess processing speed. In the Color-Word condition, participants responded to the colors in which an incongruent color word were displayed (i.e., ‘RED’ displayed in green), as quickly as possible. The Color-Word condition assesses inhibitory control as participants must suppress the response of reading the word [25 (link), 26 ]. Participants completed three 45-s blocks of each condition, in a counterbalanced order. For each condition, all targets were displayed until the participant provided a response. The reaction time (in milliseconds) for correct responses in the Color-Word condition was used as the measure of inhibitory control.
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