Working memory for spatial construction in blind and sighted individuals

Chen, Minsheng; Huang, Ching-Kai; Wang, Chih-Nan

doi:10.1080/10170660903546723

Cited by 7 publications

(6 citation statements)

References 20 publications

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“…There are some factors that may be influencing participants' performance. It is possibly due to forming and organizing information using past visual experience [Chen, Huang & Wang, 2010]. It was shown that both congenitally and late blind participants display comparable, high skills in tasks that require recalling information from memory, which can be considered as evidence of highly adaptive capabilities of the human brain [Röder & Rösler, 2003].…”

Section: Working Memory and Cognitive Functions In Blind Individualsmentioning

confidence: 99%

Are IQ tests enough to measure intelligence in the blind? Brief review of available and potential methods to estimate intelligence in the blind

Rączy¹,

Korczyk²

2018

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Measuring intelligence in the blind population is a very challenging task. Th e Wechsler Adult Intelligence Scale, one of the most popular IQ tests, is not suitable due to its reliance on visual stimuli. However, one can observe that neuroscientists have started to look for neural correlates of intelligence, for example by measuring the accuracy of performance in a popular n-back task while subjects undergo fMRI scans. It has been shown that the so-called general intelligence strongly correlates with the memory system in sighted people. Since working memory can also be tested independently of a given sensory input, it can prove to be an excellent tool to measure the working memory capacity, which can serve as a neural correlate of intelligence in the blind.

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Section: Working Memory and Cognitive Functions In Blind Individualsmentioning

confidence: 99%

Are IQ tests enough to measure intelligence in the blind? Brief review of available and potential methods to estimate intelligence in the blind

Rączy¹,

Korczyk²

2018

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“…Some researchers have suggested that variability in WM abilities within blind populations is related to the onset of visual impairment (Kärnekull et al, 2016; Picard et al, 2010), such that congenital blindness is associated with better performance than acquired blindness (Wan et al, 2010). The evidence for this claim is inconsistent (Bliss et al, 2004; Chen et al, 2010; Marmor & Zaback, 1976; Picard et al, 2010; Ruggiero & Iachini, 2010), calling for further exploration.…”

Section: Introductionmentioning

confidence: 99%

Validation of the Tactual Span in individuals with congenital and acquired blindness

Heled

Oshri

2021

British Journal of Visual Impairment

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Neuropsychological assessment tools for individuals with blindness are relatively scarce. In the current study, we assessed the validity of the Tactual Span, a task aimed at evaluating tactile working memory. During the task, the fingers of both hands are touched in specific sequences of ascending difficulty, which participants are asked to repeat in exact and reverse order. Twelve participants with congenital blindness and 13 with acquired blindness were examined alongside 18 sighted controls, matched to the experimental group with respect to age and education. Participants performed the Tactual Span and three additional tasks assessing working memory in the auditory modality, as well as a Semantic Fluency test. Results showed that the Tactual Span was significantly correlated with most of the other working memory measures, in all groups, but not with the Semantic Fluency test. In addition, the congenital and acquired blindness groups performed similarly to one another and better than sighted controls on most working memory tasks, but not on the Semantic Fluency test. Findings suggest that the Tactual Span is a feasible task for measuring tactile working memory in individuals with congenital and acquired blindness. Therefore, it can expand the cognitive assessment toolbox of professionals working with blind individuals and increase the strength of conclusions drawn from cognitive assessments in educational and vocational settings.

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“…The final results showed that there was no enhanced tactile discrimination even in multisensory-deprived participants when performing these tests. The outcome was echoed in a research experiment where researchers [15] conducted two experiments to examine the performance variance on the spatial working memory between sighted and visually impaired individuals by influencing visual, tactile, and auditory stimuli. From these experiments, the results showed that the sighted participants' performance with visual stimuli was comparable to the visually impaired participants' performance with tactile stimuli.…”

Section: Introductionmentioning

confidence: 99%

A Computer-based Mental Mapping Skills Assessment Tool

2018

Adv. in Nat. Appl. Sci.

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Working memory for spatial construction in blind and sighted individuals

Cited by 7 publications

References 20 publications

Are IQ tests enough to measure intelligence in the blind? Brief review of available and potential methods to estimate intelligence in the blind

Are IQ tests enough to measure intelligence in the blind? Brief review of available and potential methods to estimate intelligence in the blind

Validation of the Tactual Span in individuals with congenital and acquired blindness

A Computer-based Mental Mapping Skills Assessment Tool

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