Diagnosis of organicity by means of spiral aftereffect.

Some effects of stimulus variation on spiral aftereffect in organic and nonorganic subjects.

“…The results of this study are clearly in agreement with Price and Deabler's (1955) contention that report or nonreport of the SAE discriminates between brain damaged and nonorganic 5s with a fairly high degree of accuracy. Using the series of stimulus conditions developed for this experiment and a cutoff score at the median point for all patients, i.e., between five and six reports of the SAE in 10 trials, 88% of the Cortical Damage and 92% of the NP Control patients are correctly identified.…”

Some effects of stimulus variation on spiral aftereffect in organic and nonorganic subjects.

“…The results of this study are clearly in agreement with Price and Deabler's (1955) contention that report or nonreport of the SAE discriminates between brain damaged and nonorganic 5s with a fairly high degree of accuracy. Using the series of stimulus conditions developed for this experiment and a cutoff score at the median point for all patients, i.e., between five and six reports of the SAE in 10 trials, 88% of the Cortical Damage and 92% of the NP Control patients are correctly identified.…”

Extraversion, Reminiscence and Satiation Effects

“…The small correlation of neuroticism with duration of the spiral after-effect confirms previous reports that there is no association between the spiral after-effect and affective states (Price & Deabler, 1955). The correlation between neuroticism and time on trial 1 of the inverted alphabet printing task would be predicted on the basis of the Yerkes-Dodson law, i.e.…”

The present status of the Kohler-Wallach theory of satiation.

“…In fact, the tumor cases continued to build up, so that aftereffects were greater five minutes after a rest period than at any other point in the experiment. This latter finding is most interesting in view of the fact that brain injured patients in general have a lowered threshold of CFF (1,5) as well as difficulty in perceiving the negative aftereffect of the rotating Archimedes spiral (77). It is in line with the view that the brain-injured have difficulty in turning back a force set in motion, whether this force is satiation or some other process.…”

Some effects of stimulus variation on spiral aftereffect in organic and nonorganic subjects.

“…The results of this study are clearly in agreement with Price and Deabler's (1955) contention that report or nonreport of the SAE discriminates between brain damaged and nonorganic 5s with a fairly high degree of accuracy. Using the series of stimulus conditions developed for this experiment and a cutoff score at the median point for all patients, i.e., between five and six reports of the SAE in 10 trials, 88% of the Cortical Damage and 92% of the NP Control patients are correctly identified.…”

Extraversion, Reminiscence and Satiation Effects

“…The small correlation of neuroticism with duration of the spiral after-effect confirms previous reports that there is no association between the spiral after-effect and affective states (Price & Deabler, 1955). The correlation between neuroticism and time on trial 1 of the inverted alphabet printing task would be predicted on the basis of the Yerkes-Dodson law, i.e.…”

The present status of the Kohler-Wallach theory of satiation.

“…In fact, the tumor cases continued to build up, so that aftereffects were greater five minutes after a rest period than at any other point in the experiment. This latter finding is most interesting in view of the fact that brain injured patients in general have a lowered threshold of CFF (1,5) as well as difficulty in perceiving the negative aftereffect of the rotating Archimedes spiral (77). It is in line with the view that the brain-injured have difficulty in turning back a force set in motion, whether this force is satiation or some other process.…”

Some effects of stimulus variation on spiral aftereffect in organic and nonorganic subjects.

“…The results of this study are clearly in agreement with Price and Deabler's (1955) contention that report or nonreport of the SAE discriminates between brain damaged and nonorganic 5s with a fairly high degree of accuracy. Using the series of stimulus conditions developed for this experiment and a cutoff score at the median point for all patients, i.e., between five and six reports of the SAE in 10 trials, 88% of the Cortical Damage and 92% of the NP Control patients are correctly identified.…”

Extraversion, Reminiscence and Satiation Effects

“…The small correlation of neuroticism with duration of the spiral after-effect confirms previous reports that there is no association between the spiral after-effect and affective states (Price & Deabler, 1955). The correlation between neuroticism and time on trial 1 of the inverted alphabet printing task would be predicted on the basis of the Yerkes-Dodson law, i.e.…”

The present status of the Kohler-Wallach theory of satiation.

“…In fact, the tumor cases continued to build up, so that aftereffects were greater five minutes after a rest period than at any other point in the experiment. This latter finding is most interesting in view of the fact that brain injured patients in general have a lowered threshold of CFF (1,5) as well as difficulty in perceiving the negative aftereffect of the rotating Archimedes spiral (77). It is in line with the view that the brain-injured have difficulty in turning back a force set in motion, whether this force is satiation or some other process.…”