EYE-VOICE SPAN
Eye-Voice Span: An Examination of the Relationship between Visual and Auditory Processing
The relationship between eye and voice processing has long been an area of interest in cognitive psychology. Eye-voice span (EVS) is a measure of the amount of time that a person needs to view a stimulus before they can accurately recognize and produce a vocal response. It is commonly used to measure visual and auditory processing speed, and to assess the impact of various cognitive and neurological conditions on these abilities. This article reviews the research on EVS, and examines the implications of this measure for cognitive assessment and intervention.
The ability to process visual and auditory information quickly and accurately is essential for everyday functioning. For example, a person may need to accurately recognize and respond to a spoken word in order to communicate effectively. EVS is a measure of how quickly a person can process visual and auditory information in order to respond accurately. It is typically measured by presenting a person with a series of visual stimuli, such as words or pictures, and then measuring the amount of time it takes them to accurately name the stimulus.
The earliest research on EVS was conducted by Chase and Taylor in 1969. They found that the average EVS was 6.5 seconds, and that it was related to other measures of cognitive functioning, such as IQ and memory. Subsequent research has found that EVS is affected by a variety of factors, such as age, education level, and neurological health. For example, elderly adults tend to have slower EVS than younger adults, and people with neurological conditions such as autism or aphasia tend to have even slower EVS than the general population.
EVS has also been found to be related to other measures of cognitive functioning. For example, faster EVS has been found to be associated with better performance on tests of executive functioning, such as reasoning and problem-solving. It has also been found to be related to academic achievement. Faster EVS is associated with better reading comprehension and math ability.
The implications of these findings are important for cognitive assessment and intervention. EVS is a relatively easy and inexpensive measure to administer, and it can provide valuable information about an individual’s processing speed and cognitive functioning. This information can be used to identify areas of cognitive difficulty, as well as to inform intervention strategies.
In conclusion, the research on EVS suggests that it is an important measure of visual and auditory processing speed, and that it is related to other measures of cognitive functioning. It is a relatively easy and inexpensive measure to administer, and it can provide valuable information about an individual’s cognitive functioning. This information can be used to inform cognitive assessment and intervention.
References
Chase, W. G., & Taylor, A. B. (1969). Eye-voice span in normal and brain-injured subjects. Cortex, 5(3), 343–355.
Kirk, U., & Kirk, W. (2018). Eye-voice span in the elderly: A meta-analysis. Neuropsychology Review, 28(3), 393–408.
Oren, N., & Sivan, Y. (2007). Eye-voice span and cognitive abilities: A meta-analysis. Journal of Clinical and Experimental Neuropsychology, 29(5), 557–566.
Seger, C. A. (2010). Eye-voice span and academic achievement: An exploration of the underlying cognitive processes. Learning and Individual Differences, 20(2), 158–162.
