scholarly journals Stability of line-length estimates using the method of absolute magnitude estimation

1983 ◽  
Vol 33 (3) ◽  
pp. 261-265 ◽  
Author(s):  
Ronald T. Verrillo
Keyword(s):  
Magnitude Estimation ◽  
Absolute Magnitude ◽  
Line Length

Prediction of Individual Loudness Exponents from Cross-Modality Matching

1988 ◽  
Vol 31 (4) ◽  
pp. 605-615 ◽  
Author(s):  
Rhona P. Hellman ◽  
Carol H. Meiselman
Keyword(s):  
Power Function ◽  
Magnitude Estimation ◽  
Close Agreement ◽  
Absolute Magnitude ◽  
Line Length ◽  
Normal Hearing ◽  
Magnitude Production ◽  
Loudness Growth

An investigation of the relation among individual power-function exponents for 51 adults with normal hearing was undertaken. Three different psychophysical procedures were employed: absolute magnitude estimation (AME), absolute magnitude production (AMP), and cross-modality matching (CMM) between loudness and perceived length. From these procedures, loudness exponents obtained directly from measurements of AME and AMP of loudness were compared to exponents predicted from CMM and AME of perceived length. The means of the distributions of measured and predicted exponents were found to have an identical value of 0.56. Moreover, more than half of the differences between the predicted and measured exponents ranged from -.07 to +.09, giving measured deviations that extend from - 12.5 to 16%. The close agreement between the measured and predicted means, ranges, and distributions of exponent values implies that CMM combined with line-length information can be used with success to determine an individual's rate of loudness growth.

scholarly journals Pervasiveness and magnitude of context effects: Evidence for the relativity of absolute magnitude estimation

1990 ◽  
Vol 48 (6) ◽  
pp. 551-558 ◽  
Author(s):  
Hugh J. Foley ◽  
David V. Cross ◽  
Jennifer A. O’reilly
Keyword(s):  
Magnitude Estimation ◽  
Context Effects ◽  
Absolute Magnitude

Subject Differences in Exponents of Psychophysical Power Functions

1966 ◽  
Vol 23 (3_suppl) ◽  
pp. 1125-1126 ◽  
Author(s):  
Stanley J. Rule
Keyword(s):  
Magnitude Estimation ◽  
Line Length ◽  
Power Functions ◽  
Circle Size ◽  
Subject Differences

Psychophysical power functions were obtained from magnitude estimation of circle size, numerousness, and line length for each of 36 Ss. Correlations for individual exponents were found between continua. The findings supported the hypothesis that an individual exhibits a characteristic range of responses in magnitude estimation tasks.

Absolute magnitude estimation of pitch

1998 ◽  
Vol 103 (5) ◽  
pp. 2766-2766
Author(s):  
Andrzej Rakowski ◽  
Andrzej Miskiewicz
Keyword(s):  
Magnitude Estimation ◽  
Absolute Magnitude

Effect of aging on respiratory sensations produced by elastic loads

1981 ◽  
Vol 50 (4) ◽  
pp. 844-850 ◽  
Author(s):  
M. Tack ◽  
M. D. Altose ◽  
N. S. Cherniack
Keyword(s):  
Magnitude Estimation ◽  
Healthy Subjects ◽  
Estimation Method ◽  
Line Length ◽  
Respiratory Sensation ◽  
Matching Test ◽  
Elastic Loading ◽  
The Cross ◽  
Magnitude Estimation Method

We compared the effects of graded elastic loads on respiratory sensations in 19 healthy subjects greater than 60 yr of age to 21 healthy subjects less than 30 yr old. The magnitude of the respiratory sensation was quantitated by two well-established psychophysical techniques. In the magnitude-estimation method, subjects indicated the intensity of the sensation experienced with numbers; in the cross-modality method, the level of sensation was signaled with a dynamometer activated by thumb pressure. In addition, the effects of nonrespiratory stimuli were compared in the two groups. With both methods, the logarithm of the response to elastic loads was linearly related to the logarithms of the stimulus. The slope of the line relating the log of the response to the log of the stimulus (beta) was significantly greater in the younger group than in the older group using the magnitude-estimation method but not with the cross-modality matching test. There were no differences in the ability of the two groups to assign numbers to line length. However, the older group had a lower beta for magnitude estimation of thumb force than the younger group. The results suggest 1) that respiratory sensation follows Steven's law and grows exponentially with the stimulus; 2) that the growth of sensations produced by elastic loading is less in older than in younger individuals; and 3) differences in the perception of the mode used for matching in the cross-modality test may obscure significant differences in the sensations elicited by respiratory stimuli.

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