Visual Perception

11.

Spatiotemporal characteristics of dynamic feature binding in visual working memory.

It has been proposed that visual working memory can hold a set of four to five coherent object representations. As a test of this proposal, I devised a paradigm called multiple object permanence tracking (MOPT) that measures memory for feature-location ...
Jun Saiki (Vision Res, 200309)
spatiotemporal-characteristics-dynamic-feature-binding-visual-working.asp

12.

Vertical optokinetic nystagmus and saccades in normal human subjects.

PURPOSE: Optokinetic stimulation induces nystagmus that can be used to test the saccadic and visual-tracking systems in some patients with voluntary gaze palsies. The purpose of this study was to characterize vertical optokinetic nystagmus (OKN) in ...
Siobhan Garbutt, Yanning Han, Arun N Kumar, Mark Harwood, Chris M Harris, R John Leigh (Invest Ophthalmol Vis Sci, 200309)
vertical-optokinetic-nystagmus-saccades-normal-human-subjects.asp

13.

Generalized flash suppression of salient visual targets.

A pattern of light striking the retina of an alert observer is normally readily perceived. While a handful of conditions exist in which even salient visual stimuli can be rendered invisible, the mechanisms underlying such suppression remain poorly ...
Melanie Wilke, Nikos K Logothetis, David A Leopold (Neuron, 200309)
generalized-flash-suppression-salient-visual-targets.asp

14.

An own gender bias and the importance of hair in face recognition.

There is a large literature on the own race bias, the finding that people are better at recognizing faces of people from their own race. Here an own gender bias is shown: Males are better at identifying male faces than female faces and females are better ...
Daniel B Wright, Benjamin Sladden (Acta Psychol (Amst), 200309)
own-gender-bias-importance-hair-face-recognition.asp

15.

Spatio-temporal working-memory and short-term object-location tasks use different memory mechanisms.

Spatial short-term memory for objects locations was investigated in a spatial relocation task. During maintenance, dynamic visual noise or spatial tapping were administered as visual or spatial secondary tasks, respectively. Because memory for location ...
Hubert D Zimmer, Harry R Speiser, Beate Seidler (Acta Psychol (Amst), 200309)
spatio-temporal-working-memory-short-term-object-location-tasks.asp

16.

Visual-spatial ability in Parkinsons disease.

Parkinsons Disease (PD) has traditionally been viewed as primarily a disturbance of motor functioning, typically involving tremor, rigidity, hypokinesia, gait disturbance, and postural instability. More recently, decline in cognitive function has been ...
Gregory P Crucian, Michael S Okun (Front Biosci, 200309)
visual-spatial-ability-parkinson-s-disease.asp

17.

Variance normalisation: a key mechanism for temporal adaptation in natural vision?

A major problem in natural vision is how neurons in the early visual system encode the widely varying visual input with the limited dynamic range of their activity. Recent experiments suggest that retinal neurons adapt their response not only to the ...
Marco Buiatti, Carl van Vreeswijk (Vision Res, 200308)
variance-normalisation-key-mechanism-temporal-adaptation-natural.asp

18.

The role of the executive system in visuo-spatial memory functioning.

Participants were presented with a spatial sequence in which between 4 and 10 cells were highlighted. On each trial list length was unknown to the participant who was required to serially recall the last four cells. Processing of longer lists is assumed ...
John E Fisk, Charles A Sharp (Brain Cogn, 200308)
role-executive-system-visuo-spatial-memory-functioning.asp

19.

Fixation stability and saccadic latency in élite shooters.

This study tested the hypothesis that elementary visuo-motor functions involved in visual scanning, as measured by fixation and saccadic tasks, are better in a group of high-level clay target shooters (N=7) than in a control group (N=8). In the fixation ...
Francesco Di Russo, Sabrina Pitzalis, Donatella Spinelli (Vision Res, 200308)
fixation-stability-saccadic-latency-élite-shooters.asp

20.

Abnormal neural synchrony in schizophrenia.

Schizophrenia has been conceptualized as a failure of cognitive integration, and abnormalities in neural circuitry (particularly inhibitory interneurons) have been proposed as a basis for this disorder. We used measures of phase locking and phase ...
Kevin M Spencer, Paul G Nestor, Margaret A Niznikiewicz, Dean F Salisbury, Martha E Shenton, Robert W McCarley (J Neurosci, 200308)
abnormal-neural-synchrony-schizophrenia.asp