Related Experiment Video
Updated: Jan 29, 2026
09:25
An Endothelial Planar Cell Model for Imaging Immunological Synapse Dynamics
Published on: December 24, 2015
9.4K
Distinct visuo-motor brain dynamics for real-world objects versus planar images
Francesco Marini1, Katherine A Breeding2, Jacqueline C Snow2
1Department of Psychology, University of Nevada, 1664 N Virginia St, Reno, NV, 89557-0296, USA; Swartz Center for Computational Neuroscience, University of California San Diego, 9500 Gilman Drive, La Jolla, CA, 92093-0559, USA.
Neuroimage
|February 19, 2019
Summary
Real-world objects elicit stronger brain responses than 2-D images, particularly in motor preparation areas. This study used electroencephalography (EEG) to reveal distinct neural processing for 3-D objects versus their image counterparts.
Area of Science:
- Neuroscience
- Cognitive Science
- Visual Perception
Background:
- Human visual perception is primarily studied using 2-D images, limiting real-world applicability.
- Real objects, unlike images, afford direct interaction and action, suggesting different neural processing.
- Previous research indicates cognitive-behavioral differences in processing real objects versus images, but underlying neural mechanisms remain unclear.
Purpose of the Study:
- To investigate the neural differences in brain responses to real-world 3-D objects compared to 2-D images.
- To explore if real objects trigger distinct or enhanced neural activity related to action planning.
- To elucidate the electrophysiological markers differentiating the perception of physical objects from their pictorial representations.
Main Methods:
- Electroencephalography (EEG) was employed to record brain activity.
- Human observers were presented with real-world 3-D objects and matched 2-D images.
- Analysis focused on event-related desynchronization (ERD) in the μ-frequency band and event-related potentials (ERPs).
Main Results:
- Viewing real objects resulted in stronger and more sustained event-related desynchronization (ERD) in the μ-frequency band (8-13 Hz), indicating enhanced motor preparation.
- Early occipital negativity in event-related potentials (ERPs) was observed for real objects, likely due to 3-D stereoscopic processing.
- Late sustained parietal amplitude modulation suggested an 'old-new' memory advantage for real objects over images.
Conclusions:
- Real-world objects evoke more robust and prolonged action-related neural responses compared to 2-D images.
- The findings highlight significant differences in neural processing between physical objects and their representations.
- This research contributes to a more ecologically valid understanding of visual perception and its neural underpinnings.
Related Concept Videos
02:46Crystal Field Theory - Tetrahedral and Square Planar Complexes
48.4K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
48.4K
01:14Brain Imaging
727
Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans), magnetic resonance imaging (MRI), functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
727
01:18Velocity of an Object
199
Understanding how an object moves along a path requires distinguishing between motion over a time span and motion at a precise moment. A useful example is a vehicle traveling along a straight and level path, where its position at any given time is known. The initial step in analyzing this motion is to measure how far the vehicle travels over a fixed time period. This measurement, called average velocity, is computed by dividing the total change in position by the duration over which the change...
199
01:22Planar Rigid-Body Motion
1.0K
Understanding the movement of a rigid body in planar motion involves recognizing that every particle within this body is traversing a path that maintains a consistent distance from a specific plane. This concept is fundamental in the study of physics and mechanical engineering, and it allows us to comprehend better how objects move in space.
Planar motion is typically divided into three distinct categories. The first is rectilinear translation, demonstrated by a subway train that moves along...
Planar motion is typically divided into three distinct categories. The first is rectilinear translation, demonstrated by a subway train that moves along...
1.0K
01:27Gauss's Law: Planar Symmetry
9.6K
A planar symmetry of charge density is obtained when charges are uniformly spread over a large flat surface. In planar symmetry, all points in a plane parallel to the plane of charge are identical with respect to the charges. Suppose the plane of the charge distribution is the xy-plane, and the electric field at a space point P with coordinates (x, y, z) is to be determined. Since the charge density is the same at all (x, y) - coordinates in the z = 0 plane, by symmetry, the electric field at P...
9.6K
01:29Potential Due to a Polarized Object
770
A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...
770