Note on Fitts' Law for Manipulative Temporal Motor Responses with Path Constraints

1975 ◽  
Vol 40 (2) ◽  
pp. 411-414 ◽  
Author(s):  
Tarald O. Kvålseth
Keyword(s):  
Hand Movements ◽  
Movement Path ◽  
Motor Responses ◽  
First Order ◽  
Fitts Law ◽  
Motion Time ◽  
Path Constraints ◽  
Different Types ◽  
Time Systems

This paper presents a first-order version of an earlier model by Kvålseth (1973) of manipulative motor responses involving serial hand movements with different types of movement-path constraints. This model represents a generalization of Fitts' law. Comparisons are also made between experimental movement times obtained and predetermined motion-time systems predictions.

Quantitative Models of Motor Responses Subject to Longitudinal, Lateral, and Preview Constraints

1978 ◽  
Vol 20 (1) ◽  
pp. 35-39 ◽  
Author(s):  
Tarald O. Kvålseth
Keyword(s):  
Experimental Data ◽  
Motor Control ◽  
Linear Models ◽  
Movement Time ◽  
Arm Movements ◽  
Second Order ◽  
Motor Responses ◽  
First Order ◽  
Different Types ◽  
Index Of Difficulty

First- and second-order linear models of mean movement time for serial arm movements aimed at a target and subject to preview constraints and lateral constraints were formulated as extensions of the so-called Fitts's law of motor control. These models were validated on the basis of experimental data from five subjects and found to explain from 80% to 85% of the variation in movement time in the case of the first-order models and from 93% to 95% of such variation for the second-order models. Fitts's index of difficulty (ID) was generally found to contribute more to the movement time than did either the preview ID or the lateral ID defined. Of the different types of errors, target overshoots occurred far more frequently than undershoots.

Fitts' Law for Manipulative Temporal Motor Responses with and without Path Constraints

1973 ◽  
Vol 37 (2) ◽  
pp. 427-431 ◽  
Author(s):  
Tarald O. Kvålseth
Keyword(s):  
Movement Time ◽  
Arm Movement ◽  
Order Model ◽  
Movement Model ◽  
Maximum Information ◽  
Motor Responses ◽  
Path Constraints ◽  
Different Types ◽  
Independent Variable ◽  
Constraint Information

This study shows that a univariate linear model, analogous to Fitts' arm movement model, is appropriate for manipulative motor responses involving serial hand movements with a maximum information rate of 5.5 bits/sec. which is half that determined by Fitts. For such manipulative tasks with different types of movement path constraints imposed, it is shown that a second-order model with interaction is appropriate for relating movement time to movement information and constraint information, the latter independent variable providing the greatest contribution to movement time.

Fitts' Law in 3D Space with Coordinated Hand Movements

2012 ◽  
Author(s):  
Xiaolu Zeng ◽  
Alan Hedge ◽  
Francois Guimbretiere
Keyword(s):  
Hand Movements ◽  
Fitts Law ◽  
3D Space

Post-Non-Classical World View in the On-Screen Reality of the Digital Epoch

2015 ◽  
pp. 4-12
Author(s):  
Elena V. Nikolaeva
Keyword(s):  
World View ◽  
Dynamic Chaos ◽  
Digital Culture ◽  
Fractal Nature ◽  
Late 20Th Century ◽  
First Order ◽  
Classical World ◽  
Different Types ◽  
Strange Loops ◽  
Cultural World

The article analyzes the correlation between the screen reality and the first-order reality in the digital culture. Specific concepts of the scientific paradigm of the late 20th century are considered as constituent principles of the on-screen reality of the digital epoch. The study proves that the post-non-classical cultural world view, emerging from the dynamic “chaos” of informational and semantic rows of TV programs and cinematographic narrations, is of a fractal nature. The article investigates different types of fractality of the TV content and film plots, their inner and outer “strange loops” and artistic interpretations of the “butterfly effect”.

scholarly journals Identifikasi Ekstraksi Fitur untuk Gerakan Tangan dalam Bahasa Isyarat (SIBI) Menggunakan Sensor MYO Armband

2019 ◽  
Vol 19 (1) ◽  
pp. 127-137
Author(s):  
Angga Rahagiyanto
Keyword(s):  
Sign Language ◽  
Cross Validation ◽  
Hand Movements ◽  
Raw Data ◽  
Moment Invariant ◽  
Recognition Process ◽  
Movement Recognition ◽  
Myo Armband ◽  
Different Types ◽  
The Moment

Indonesian: Indonesian SIBI has been widely reviewed by researchers using different types of cameras and sensors. The ultimate goal is to produce a strong, fast and accurate movement recognition process. One that supports talk of movement using sensors on the MYO Armband tool. This paper explains how to use raw data generated from the MYO Armband sensor and extract integration so that it can be used to facilitate complete hand, arm and combination movements in the SIBI sign language dictionary. MYO armband uses five sensors: accelerometer, gyroscope, orientation, euler-orientation and EMG. Each sensor produces data that is different in scale and size. This requires a process to make the data uniform. This study uses the min-max method to normalize any data on the MYO Armband sensor and the Moment Invariant method to extract the vector features of hand movements. Testing is done using sign language Movement statistics both dynamic signals. Testing is done using cross validation.

scholarly journals Remote-Tuning – Case Study of PI Controller for the First-Order-Plus-Dead-Time Systems

10.5772/19258 ◽  
2011 ◽  
Author(s):  
Dennis Brandao ◽  
Nunzio Torrisi ◽  
Renato F. Fernandes Jr
Keyword(s):  
Dead Time ◽  
Pi Controller ◽  
First Order ◽  
Time Systems

Resolution in type theory

1971 ◽  
Vol 36 (3) ◽  
pp. 414-432 ◽  
Author(s):  
Peter B. Andrews
Keyword(s):  
Set Theory ◽  
Type Theory ◽  
Higher Order ◽  
Order Logic ◽  
First Order Logic ◽  
Higher Order Logic ◽  
First Order ◽  
Different Types ◽  
Axiomatic Set Theory ◽  
Order Predicate Calculus

In [8] J. A. Robinson introduced a complete refutation procedure called resolution for first order predicate calculus. Resolution is based on ideas in Herbrand's Theorem, and provides a very convenient framework in which to search for a proof of a wff believed to be a theorem. Moreover, it has proved possible to formulate many refinements of resolution which are still complete but are more efficient, at least in many contexts. However, when efficiency is a prime consideration, the restriction to first order logic is unfortunate, since many statements of mathematics (and other disciplines) can be expressed more simply and naturally in higher order logic than in first order logic. Also, the fact that in higher order logic (as in many-sorted first order logic) there is an explicit syntactic distinction between expressions which denote different types of intuitive objects is of great value where matching is involved, since one is automatically prevented from trying to make certain inappropriate matches. (One may contrast this with the situation in which mathematical statements are expressed in the symbolism of axiomatic set theory.).

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