Visual perception: bizarre contours go against the odds.

Curr Biol

Department of Psychology, University of Giessen, Otto-Behaghel-Str. 10/F, 35394, Giessen, Germany.

Published: April 2011

A new study shows that the brain sometimes invents visual contours even when they would be highly unlikely to occur in the real world. This presents a challenge to theories assuming that the brain prefers the most probable interpretation of the retinal image.

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.cub.2011.02.012DOI Listing

Publication Analysis

Top Keywords

visual perception
4
perception bizarre
4
bizarre contours
4
contours odds
4
odds study
4
study brain
4
brain invents
4
invents visual
4
visual contours
4
contours highly
4

Similar Publications

Background: Dental anxiety about injections are common challenge in pediatric dentistry, often leading to delayed dental treatment.

Aim: The aim of the study was to evaluate the anesthetic effectiveness of three different topical agents in pediatric dental procedures.

Settings And Design: The study was a cross-sectional study carried out in the department of pediatric and preventive dentistry.

View Article and Find Full Text PDF

Coming home: how visually navigating ants (Myrmecia spp.) pinpoint their nest.

J Exp Biol

January 2025

Research School of Biology, The Australian National University, 46 Sullivans Creek Road, Canberra ACT2601, Australia.

Visually navigating Myrmecia foragers approach their nest from distances up to 25 m along well-directed paths, even from locations they have never been before ( Narendra et al., 2013). However, close to the nest, they often spend some time pinpointing the nest entrance, sometimes missing it by centimetres.

View Article and Find Full Text PDF

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 PDF

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 PDF

Wide dynamic range compression (WDRC) and noise reduction both play important roles in hearing aids. WDRC provides level-dependent amplification so that the level of sound produced by the hearing aid falls between the hearing threshold and the highest comfortable level of the listener, while noise reduction reduces ambient noise with the goal of improving intelligibility and listening comfort and reducing effort. In most current hearing aids, noise reduction and WDRC are implemented sequentially, but this may lead to distortion of the amplitude modulation patterns of both the speech and the noise.

View Article and Find Full Text PDF

Want 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!