Sensitivity to the acceleration of looming stimuli

Clinical & Experimental Ophthalmology
James TrewhellaM R Ibbotson

Abstract

The aim of this study was to determine if observers could discriminate between looming stimuli simulating targets approaching the observers at either constant or non-constant speeds. Discrimination between accelerating and constant-speed approaches improved after 70-90 trials for accelerations >2 m/s2. For lower accelerations the ability to discriminate was poor regardless of the trial number. Following the learning phase, observers were able to identify accelerating targets from constant-speed approaches fairly consistently at performance levels of 70-75% for accelerations as low as 4 m/s2 and at 80-96% for accelerations of 6-14 m/s2. Observers' accuracy in identifying decelerating from constant-speed targets did not increase as a function of increasing deceleration. In fact, observers had a slight bias to select the constant-speed stimulus as being the decelerating stimulus. In summary, the sensitivity to acceleration for simulated motion in depth is poor, but increases as acceleration increases and sensitivity to acceleration is far greater than for deceleration.

References

Jun 1, 1979·AJR. American Journal of Roentgenology·J J Pollen, W J Shlaer
Nov 1, 1979·Transfusion·J J McCullough, B J Weiblen
Jan 1, 1978·Vision Research·D Regan, K I Beverley
Dec 1, 1992·Vision Research·P WerkhovenA Toet
Jan 1, 1991·Vision Research·R J Snowden, O J Braddick
Jan 1, 1974·Psychological Research·S Runeson
Jan 1, 1981·Vision Research·S P McKee
Jul 1, 1994·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·A T Smith
Feb 1, 1961·British Journal of Psychology·R GOTTSDANKERR B LOCKARD

❮ Previous
Next ❯

Citations

Jan 14, 2009·Experimental Brain Research·Myrka ZagoFrancesco Lacquaniti
Jun 23, 2009·Experimental Brain Research·Joost C DessingPeter J Beek
Nov 3, 2009·Experimental Brain Research·Myrka ZagoFrancesco Lacquaniti
Feb 24, 2016·PloS One·Alexandra S Mueller, Brian Timney
Dec 25, 2010·Perception·Mark EdwardsStuart Kohlhagen

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Neuron
Vincent P Ferrera, Andrei Barborica
Frontiers in Computational Neuroscience
M D'AndolaA d'Avella
© 2022 Meta ULC. All rights reserved