Results 321 to 330 of about 3,626,582 (354)

Vision‐Assisted Avocado Harvesting with Aerial Bimanual Manipulation

open access: yesAdvanced Robotics Research, EarlyView.
This work outlines the design and implementation of a bimanual aerial robot that employs visual perception and learning to detect, reach, and harvest avocados. A new gripper and fixer arm assembly is used to harvest avocados, while visual perception enables the detection of avocados and estimation of their position and orientation for determining ...
Zhichao Liu   +3 more
wiley   +1 more source

In‐Hand Singulation, Scooping, and Cable Untangling with a 5‐Dof Tactile‐Reactive Gripper

open access: yesAdvanced Robotics Research, EarlyView.
This article presents a two‐fingered gripper with five degrees of freedom and a vision‐based tactile sensor for dexterous in‐hand manipulation. It performs complex tasks such as object singulation within granular media, scooping and precise card insertion, and cable untangling.
Yuhao Zhou   +3 more
wiley   +1 more source

Sub-second and multi-second dopamine dynamics underlie variability in human time perception

open access: yes
Sadibolova R   +7 more
europepmc   +1 more source
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On the Perception of Time

Gerontology, 2009
In this article, we review scientific work and present new results on the perception of time, that is, on the feeling of time as perceived by individuals. The phenomenon of time being felt passing faster with growing age is well known, and there are numerous interesting studies to shed light on the question why this is so.
Bruss, F. Thomas, Rüschendorf, Ludger
openaire   +3 more sources

Time and Time Perception

Topoi, 2014
There is little doubt that we perceive the world as tensed—that is, as consisting of a past, present and future each with a different ontological status—and transient—that is, as involving a passage of time. We also have the ability to execute precisely timed behaviors that appear to depend upon making correct temporal judgments about which changes are
Dimitria Electra Gatzia, Berit Brogaard
openaire   +2 more sources

Hypnosis and the perception of time

International Journal of Clinical and Experimental Hypnosis, 1979
Abstract Ss who were administered the Harvard Group Scale of Hypnotic Susceptibility, Form A of Shor and E. Orne (1962) underestimated the duration of the “hypnotic interval” by 41%. The same Ss underestimated a nonhypnotic interval of the same length by only 14 %.
Kenneth S. Bowers, Heather A. Brenneman
openaire   +2 more sources

Disfluency and Time Perception

Journal of Speech, Language, and Hearing Research, 2000
Stuttering is manifested as a disruption in speech timing, but it may stem from a more basic temporal disorder (R. D. Kent, 1984). We compared the ability of stuttering and nonstuttering adults to estimate protensity and to distinguish the relative lengths of short tones.
Richard G. Absher   +3 more
openaire   +3 more sources

Time Perception and Anxiety

Perceptual and Motor Skills, 1967
This paper aimed to (1) study the relationship between time perception and two levels of anxiety, (2) raise a methodological question about the measurement of time perception, and (3) measure the stability of production interval estimates. (1) 8 patients with high anxiety demonstrated greater distortions of time perception than 9 with low anxiety, (2)
Rudolf H. Moos, Andrew D. Whyman
openaire   +3 more sources

Neuropsychology of timing and time perception

Brain and Cognition, 2005
Interval timing in the range of milliseconds to minutes is affected in a variety of neurological and psychiatric populations involving disruption of the frontal cortex, hippocampus, basal ganglia, and cerebellum. Our understanding of these distortions in timing and time perception are aided by the analysis of the sources of variance attributable to ...
openaire   +3 more sources

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