Poor resolution at the back of the tongue is the bottleneck for spatial pattern recognition

Autor:	M. Umut Canoluk, Jae-Hyun Jung, Zahide Pamir, Eli Peli
Jazyk:	angličtina
Rok vydání:	2020
Předmět:	Adult Male Computer science Spatial Behavior lcsh:Medicine Blindness Article 050105 experimental psychology 03 medical and health sciences 0302 clinical medicine Tongue Tip of the tongue Human behaviour medicine Humans 0501 psychology and cognitive sciences Computer vision Sensitivity (control systems) lcsh:Science Image resolution Multidisciplinary business.industry 05 social sciences lcsh:R Middle Aged medicine.anatomical_structure Sensory substitution Vision disorders Touch Pattern Recognition Physiological Somatosensory system Pattern recognition (psychology) Female lcsh:Q Artificial intelligence business 030217 neurology & neurosurgery
Zdroj:	Scientific Reports, Vol 10, Iss 1, Pp 1-13 (2020) Scientific Reports
ISSN:	2045-2322
DOI:	10.1038/s41598-020-59102-3
Popis:	Spatial patterns presented on the tongue using electro-tactile sensory substitution devices (SSDs) have been suggested to be recognized better by tracing the pattern with the tip of the tongue. We examined if the functional benefit of tracing is overcoming the poor sensitivity or low spatial resolution at the back of the tongue or alternatively compensating for limited information processing capacity by fixating on a segment of the spatial pattern at a time. Using a commercially available SSD, the BrainPort, we compared letter recognition performance in three presentation modes; tracing, static, and drawing. Stimulation intensity was either constant or increased from the tip to the back of the tongue to partially compensate for the decreasing sensitivity. Recognition was significantly better for tracing, compared to static and drawing conditions. Confusion analyses showed that letters were confused based on their characteristics presented near the tip in static and drawing conditions. The results suggest that recognition performance is limited by the poor spatial resolution at the back of the tongue, and tracing seems to be an effective strategy to overcome this. Compensating for limited information processing capacity or poor sensitivity by drawing or increasing intensity at the back, respectively, does not improve the performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aa621c0c579965c31522639a3ad7d8c6 http://link.springer.com/article/10.1038/s41598-020-59102-3 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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