Abstract
The present study investigated the characteristics of tactile working memory using the N-Back Task. The participants (n = 16), all sighted, performed the task with working memory loads equivalent to maintaining one, two, or three letters in the working memory (N-Back 1, N-Back 2, and N-Back 3). The frequency of commission and omission errors was analyzed as a function of memory load. The results indicate an increase in the frequency of omission errors due to this factor. The working memory load did not significantly influence commission errors. In general, our results suggest that the tactile N-Back task may represent a promising method for the assessment of working memory in blind and sighted participants.
Highlights
O presente estudo investigou as características da memória de trabalho tátil por meio da Tarefa NBack
The present study aimed to investigate the working memory performance using a tactile N-Back task procedure adapted from Bliss and Hämäläinen (2005) in a Brazilian normal vision sample
The tactile recognition condition is not characterized as a N-back task but rather a recognition task, and the data was not included in the n-back statistical analysis
Summary
O presente estudo investigou as características da memória de trabalho tátil por meio da Tarefa NBack. Studies of these cases show that most of the time these people cannot visually recognize the objects they have recognized by touch (Sacks, 1993), and suggests a dissociation between the processing of visual and tactile information6. Bliss and Hämäläinen (2005), for example, evaluated the possible differences in the memory and processing capacity of visual and tactile information in normal sight persons in a N-Back task, one of the most popular measure of working memory (Yaple, Stevens, & Arsalidou, 2019).
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