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The original article [1] contained an error whereby the captions to Fig. 3 and Fig. 8 were mistakenly interchanged. [ABSTRACT FROM AUTHOR]

Background: Vibrotactile stimulation is a promising venue in the field of prosthetics to retrain sensory feedback deficits following amputation. Discrimination is well established at the forearm level but not at the upper arm level. Moreover, the effects of combining vibration characteristics such as duration and intensity has never been investigated.Method: We conducted experiments on spatial discrimination (experiment 1) and tactile intensity perception (experiment 2), using 9 combinations of 3 intensities and 3 durations of vibror stimulations device. Those combinations were tested under 4 arrangements with an array of 6 vibrors. In both experiments, linear orientation aligned with the upper arm longitudinal axis were compared to circular orientation on the upper arm circumference. For both orientations, vibrors were placed either with 3cm space between the center of 2 vibrors or proportionally to the length or the circumference of the subject upper arm. Eleven heathy subjects underwent the 2 experiments and 7 amputees (humeral level) participated in the spatial discrimination task with the best arrangement found.Results: Experiment 1 revealed that circular arrangements elicited better scores than the linear ones. Arrangements with vibrors spaced proportionally elicited better scores (up to 75% correct) than those with 3 cm spacing. Experiment 2, showed that the perceived intensity of the vibration increases with the intensity of the vibrors' activation, but also with their duration of activation. The 7 patients obtained high scores (up to 91.67% correct) with the circular proportional (CP) arrangement.Discussion: These results highlight that discrete and short vibrations can be well discriminated by healthy subjects and people with an upper limb amputation. These new characteristics of vibrations have great potential for future sensory substitution application in closed-loop prosthetic control. [ABSTRACT FROM AUTHOR]

An editorial is presented on expecting manuscripts for using estimation methods instead of null hypothesis statistical tests. Topics include statistical inference being the process of making inferences about populations using data from samples; and availability of alternative methods of statistical inference and promotion of the methods in statistical, medical, and physiotherapy journals.

A correction to the article "Statistical Inference Through Estimation: Recommendations From the International Society of Physiotherapy Journal Editors," by M. R. Elkins et al, that was published in a 2022 issue is presented.

The article presents the recommendations from the "International Society of Physiotherapy Journal" on the use of statistical inference through estimation.