Central Visual Field

The central visual field is the portion of space viewed with the fovea, the specialized region of the retina that provides the sharpest and most detailed vision. Light from this area is focused onto densely packed cone photoreceptors, whose signals travel through retinal ganglion cells and visual pathways to support fine spatial analysis, color discrimination, and object recognition. In behavioral research, central visual field measurements help explain reading, visual attention, eye movements, and target detection. Comparing central and peripheral vision also reveals how visual acuity, processing speed, and attention guide interactions with objects and environments.

Central Visual Field - Related Videos

Research

JoVE Journal - Behavior

Central and Divided Visual Field Presentation of Emotional Images to Measure Hemispheric Differences in Motivated Attention

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2017

This study compared central versus divided visual field presentations of emotional images to assess differences in motivated attention between the two hemispheres. The late positive potential (LPP) was recorded using electroencephalography (EEG) and event-related potentials (ERPs) methodologies to assess motivated attention.

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

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Cited by 1 •

2020

Presented here is a protocol for assessing binocular eye movements and gaze-controlled central visual field screening in participants with central vision loss.

Education

JoVE Core - Biology

The Central Dogma

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2019

Overview The central dogma of biology states that information encoded in the DNA is transferred to messenger RNA (mRNA), which then directs the synthesis of protein. The set of instructions that enable the mRNA nucleotide sequence to be decoded into amino acids is called the genetic code. The universal nature of this genetic code has spurred advances in scientific research, agriculture, and medicine. RNA Is the Missing Link between DNA and Proteins In the early 1900s, scientists discovered...

Research

JoVE Journal - Medicine
Free Sample

Driving Simulation in the Clinic: Testing Visual Exploratory Behavior in Daily Life Activities in Patients with Visual Field Defects

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Cited by 20 •

2012

Patients with visual deficits after stroke report about different constraints in daily life most likely due to variable compensatory strategies, which are difficult to differentiate in clinical routine. We present a clinical set-up which allows measurement of different compensatory head- and eye-movement-strategies and evaluating their effects on driving performance.

Topographical Estimation of Visual Population Receptive Fields by fMRI

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Cited by 3 •

2015

It is important to obtain unbiased estimates of visual population receptive fields (pRFs) by functional magnetic resonance imaging. We use mild regularization constraints to estimate pRF topography without a-priori assumptions about pRF shape, allowing us to choose specific pRF models post-hoc. This is particularly advantageous in subjects with visual-pathway lesions.

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