Capability of monkeys for identification of quantitative signs has been studied at recognition and comparison of two- and three-dimensional objects in quantities from 1 to 8. The work was carried out on two species of the low monkeys: rhesus macaque (Macaca mulatta) and brown capuchins (Cebus apella). The studied representatives of the monkeys have been established to be able to differentiate planar images and casts of cherries in various quantity combinations from 1 to 8 and to identify identical signs of visual stimuli. The obtained data indicate the ability of monkeys to abstract and to form preverbal notions of quantitative signs of objects.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Adaptive changes in balance control strategies under continuous exposure to visual-somatosensory conflicts.
J Neurophysiol
January 2025
Department of Sports Science, Zhejiang University, Hangzhou, Zhejiang, China.
Human postural control system has the capacity to adapt to balance-challenging perturbations. However, the characteristics and mechanisms of postural adaptation to continuous perturbation under the sensory conflicting environments remain unclear. We aimed to investigate the functional role of oscillatory coupling drive to lower-limb muscles with changes in balance control during postural adaptation under multisensory congruent and incongruent environments.
View Article and Find Full Text PDFMeasuring Realistic Emotional Perception With EEG: A Comparison of Multimodal Videos and Naturalistic Scenes.
Psychophysiology
January 2025
Department of Psychology, University of Georgia, Athens, Georgia, USA.
Emotional experiences involve dynamic multisensory perception, yet most EEG research uses unimodal stimuli such as naturalistic scene photographs. Recent research suggests that realistic emotional videos reliably reduce the amplitude of a steady-state visual evoked potential (ssVEP) elicited by a flickering border. Here, we examine the extent to which this video-ssVEP measure compares with the well-established Late Positive Potential (LPP) that is reliably larger for emotional relative to neutral scenes.
View Article and Find Full Text PDFAnisotropy of the Orientation Selectivity in the Visual Cortex Area 18 of Cats Reared Under Normal and Altered Visual Experience.
Eur J Neurosci
January 2025
Pavlov Institute of Physiology RAS, Saint-Petersburg, Russia.
The "oblique effect" refers to the reduced visual performance for stimuli presented at oblique orientations compared to those at cardinal orientations. In the cortex, neurons that respond to specific orientations are organized into orientation columns. This raises the question: Are the orientation signals in the iso-orientation columns associated with cardinal orientations the same as those in the iso-orientation columns associated with oblique orientations, and is this signal influenced by experience? To explore this, iso-orientation columns in visual area 18 were examined using optical imaging techniques.
View Article and Find Full Text PDFFace age modulates face ensemble coding.
Vision Res
January 2025
Department of Psychology, College of Education, Hunan Agricultural University.
Research has demonstrated that humans possess the remarkable ability to swiftly extract ensemble statistics, specifically the average identity, from sets of stimuli, such as facial crowds. This phenomenon is known as ensemble perception. Although previous studies have investigated how physiognomic features like gender and race influence face ensemble perception, the impact of face age on face ensemble coding performance remains a relatively unexplored area.
View Article and Find Full Text PDFPoor fixation stability does not account for motion perception deficits in amblyopia.
Sci Rep
January 2025
Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, BC, Canada.
People with amblyopia show deficits in global motion perception, especially at slow speeds. These observers are also known to have unstable fixation when viewing stationary fixation targets, relative to healthy controls. It is possible that poor fixation stability during motion viewing interferes with the fidelity of the input to motion-sensitive neurons in visual cortex.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!