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200 catches abscissa adjustment adult amount apparatus apparent weight appears armature auditory illusions average attainment average number ball-tossing blue cent chronoscope circuit color Color Blindness column compared comparison correct correlation deaf children deception diastolic distance Dynamometer Reading Ebert and Meumann effect End of intro End of ques equal error curves experimenter exposure fact factor force function galvanometer give given Grahamstown Graph greater Heterochromatic illumination illusion increase indicate individual intensity interval introspection judgments KNIGHT DUNLAP learning light limen luminosity magnet measure memory memory-span ment method mirror-reading motor motor learning movement musical nonsense syllables number of catches observer obtained odorous photometric position practice period present pressure Psychol psychological pull pupils reaction records relative represented retina rheostats scores sigma size-weight illusion solenoids standard stimulus successive systolic Table tachistoscope test experiment tion trials ulna variable variation visual yellow
Page 162 - The behavior of the bp does not act as the least indicator of the objective validity of the story told by any witness, but it constitutes a practically infallible test of the consciousness of an attitude of deception.
Page 420 - J1)/2, subjective equality, (cs -f. ci)/(h* + hi), and coefficients of precision, hi and h*, were calculated. The results are recorded in Table I. Directing our attention first to the MS3 for the one hand, 1 SS George believes that doubtful and or-judgments probably belong to the same category. For an excellent evaluation of these various judgments and an explanation of their non-serial nature, see his article entitled Attitude in Relation to the Psychophysical Judgment, Amer. J. of Psychol., 1917,...
Page 4 - Brightness, b, of an element of a luminous surface from a given position, is the luminous intensity per unit area of the surface projected on a plane perpendicular to the line of sight, and including only a surface of dimensions negligibly small in comparison with the distance to the observer. It is measured in candles per square centimeter of the projected area. Defining equation : Let 6 be the angle between the normal to the surface and the line of sight.
Page 478 - There is a relative decrease in the number of repetitions as the number of syllables increases. Particularly noteworthy is the fact that the number of repetitions for the series from 10 to 18 is practically constant. The results are even more striking than those of Meumann in showing the relative economy with Repetitions for learning M.
Page 57 - ... change in the distance. It is probable that we have here inadequate convergence and that the optic axes do not intersect at the object but beyond, so that the axes are more or less parallel. Thus the feeling of convergence is less intense than experience teaches is necessary to perceive the object as such a size and at such a distance. If degree of convergence is a criterion for distance and if distance is a measure for the apparent size of an object then we have the conditions necessary for...
Page 73 - The possibility of auditory illusions of movement." (p. 64) ; (2) " The relation between exposure and interval." (p. 64); (3) "The effect of difference in the intensity of the two stimuli." (p. 64). He concluded that : 1. " The presentation of two faint similar auditory stimuli in quick succession a few centimeters apart yields, under certain conditions, an impression of a sound moving in the direction of the actual temporal succession of the stimuli. Individuals vary in their susceptibility to the...
Page 22 - IVES, HE, and KINGSBURY, EF The theory of the flicker photometer.
Page 264 - The Estimation of Distances by Sight and Passive Touch: Some Investigations into the Evolution of the Sense of Touch...
Page 414 - Left grip is closer to normal than right grip but is more subnormal than height or weight. It is closely associated with right grip. The typical feeble-minded person is relatively stronger in left grip than in right. (Sinistrality in grip does not necessarily imply sinistrality in other manual activities.) Both right and left grip are associated with height and weight.
Page 163 - The examination should be private, with carefully controlled conditions, and means at hand for recording involuntary movements, muscular contractions, and sudden or suppressed laughter. (c) The record should be interpreted by a psychologist experienced in this particular line, and should be scrutinized with careful reference to the construction and subject matter of the story, the record of the manner and muscular contractions of the witness, and above all it should be compared minutely with the...