Asymmetry of the perceptual span in reading

  title={Asymmetry of the perceptual span in reading},
  author={George W. McConkie and Keith Rayner},
  journal={Bulletin of the psychonomic society},
An on-line computer technique was used to determine whether three skilled readers acquired visual information equally far to the left and right of central vision during fixations in reading. None of the subjects appeared to use visual information more than four character positions to the left of the fixation point (smaller distances were not tested), though all of them acquired visual information substantially further than that to the right. Thus, the region of useful visual information in… 

Eye Movements and the Perceptual Span in Reading.

A DISPLAY SYSTEM CONTROLLED by the eye movements of the reader was used to identify the area in a text from which information is collected during a fixation in silent reading. As the validity of the

Asymmetry of the effective visual field in reading

The results of these experiments indicate that the effective visual field extends from the beginning of the currently fixated word up to about 15 characters to the right of fixation, independent of the number of letters available to the left of fixation.

Perceptual span for letter distinctions during reading

THIS STUDY investigated the size of the visual region within which adults use visual information to distinguish among letters as they read. Fifteen college students read passages from a cathode-ray

Visual attention in reading: Eye movements reflect cognitive processes

Eye movement data of skilled readers reading passages of text were analyzed and it was found that the main verb of the sentence received more visual attention than other key grammatical elements within a sentence.

Attention shifting during the reading of Chinese sentences.

An eye-movement-contingent probe detection task was used to determine the allocation of visual attention during Chinese reading and indicated that the direction of shifts of attention is preset and progresses with a script-specific word order.

The effective visual field in reading Chinese

The size and shape of the effective visual field in Chinese reading was investigated by systematically manipulating the availability of meaningful information on both sides of a fixated character. A

Investigating the Effectiveness of Spatial Frequencies to the Left and Right of Central Vision during Reading: Evidence from Reading Times and Eye Movements

Overall, the findings show that while a range of different spatial frequencies can be used by skilled adult readers, the effectiveness of spatial frequencies differs for text on each side of central vision, and may reflect different roles played by these two areas of text during reading.

On words and their letters

In a recent article, McConkie et al. (1989) proposed that, due to the rapid drop-off of visual acuity, the amount of visual information available from a word is maximal when the eye fixates the



The span of the effective stimulus during a fixation in reading

A computer-based eye-movement controlled, display system was developed for the study of perceptual processes in reading. A study was conducted to identify the region from which skilled readers pick

The perceptual span and peripheral cues in reading

On-line monitoring of eye-position signals in contingent and noncontingent paradigms

This paper presents a research methodology for the study of human attentional and perceptual processes by means of on-line monitoring of eye-position signals, appropriate to a variety of studies in which eye movements are considered to be part of an attentional control system.

Legibility of a uniform·stroke width alphabet: 1. Relative legibility of upper and lower-class letters

  • Journal of Engineering Psychology. 1962