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INFLUENCE OF VESTIBULAR STIMULATION ON THE FUSION FREQUENCY OF FLICKER: IN NORMAL SUBJECTS AND IN PATIENTS WITH POSTCONCUSSION SYNDROME

INFLUENCE OF VESTIBULAR STIMULATION ON THE FUSION FREQUENCY OF FLICKER: IN NORMAL SUBJECTS AND IN... Abstract Cerebral concussion may produce subjective disturbances for a considerable period without being associated with objective clinical signs. Since dizziness is one of the most frequent complaints, it has been assumed that the vestibular apparatus is frequently affected by concussion. Vertigo as a symptom complaint is subjective. Tests for this condition (Romberg test; deviation test; finger to nose test) depend on the patient's cooperation, and their significance is often easily appreciated by the patient. These tests are difficult to apply in cases of malingering. Because of its objective nature, one of the best tests available is the nystagmus reaction to caloric stimulation. Since the nystagmus reaction may be normal in patients with considerable disturbance, the presence of a pathologic nystagmus response would indicate objective impairment, but a normal nystagmus reaction would not exclude it. The variability of the nystagmus effect may be partly due to the judgment of the observer. Hence, References 1. Symonds, C. P.: Discussion on Differential Diagnosis and Treatment of Post-Contusional States , Proc. Roy. Soc. Med. 35:601, 1942. 2. Simonson, E., and Enzer, N.: Measurement of Fusion Frequency of Flicker as a Test for Fatigue of the Central Nervous System , J. Indust. Hyg. & Toxicol. 23:83, 1941. 3. Lee, R. H.: Critical Fusion Frequency of Flicker, Public Health Bulletin 265, United States Public Health Service, 1941, p. 195. 4. Enzer, N.; Simonson, E., and Blankstein, S. S.: The State of Sensory and Motor Centers in Patients with Hypothyroidism , Ann. Int. Med. 15:659, 1941 5. Fatigue of the Central Nervous System in Patients with Circulatory Insufficiency , Enzer Ann. Int. Med. 16:701, 1942. 6. Simonson, E.; Kearns, W. M., and Enzer, N.: Effect of Oral Administration of Methyltestosterone on Fatigue of Eunuchoids and Castrates , Endocrinology 28:506, 1941. 7. Simonson, E.; Enzer, N.; Baer, A., and Braun, R.: The Influence of Vitamin B (Complex) Surplus on the Capacity for Muscular and Mental Work , J. Indust. Hyg. & Toxicol. 24:83, 1942. 8. Simonson, E.; Enzer, N., and Blankstein, S. S.: The Effect of Amphetamine (Benzedrine) Sulfate upon Fatigue of the Central Nervous System, Measured by Means of the Fusion Frequency of Flicker , War Med. 1:690 ( (Sept.) ) 1941. 9. Simonson, E., and Enzer, N.: Effect of Pervitin (Desoxyephedrine) on Fatigue of the Central Nervous System , J. Indust. Hyg. & Toxicol. 24:205, 1942. 10. Kravkov, S. V.: (a) Action des excitations auditives sur la fréquence critique des papillotements lumineux , Acta ophth. 13:260, 1935 11. Effect of Smell on Color Vision , Fiziol. zhur. 28:313, 1940. 12. Allen, F., and Schwartz, M.: The Effect of Stimulation of the Senses of Vision, Hearing, Taste, and Smell upon the Sensibility of the Organs of Vision , J. Gen. Physiol. 24:105, 1940. 13. Kravkov.8a Allen and Schwartz.9 14. Kravkov.8b Allen and Schwartz.9 15. Livanov, M. N.: On Rhythmic Stimulation and the Mutual Relationship of Different Areas of the Cerebral Cortex , Fiziol. zhur. 28:189, 1940. 16. Crozier, W. J., and Wolf, E.: Temperature and Critical Illumination for Reaction to Flickering Light: III. Sunfish , J. Gen. Physiol. 22:487, 1939 17. IV. Anax Nymphs , Crozier J. Gen. Physiol. 22:795, 1939. 18. O'Brien, B.: Conference on Visual Fatigue, National Research Council, 1939, p. 4. 19. Jokl, E.: The Medical Aspect of Boxing , Pretoria, J. L. Van Schaik, Ltd., 1941. 20. Denny-Brown, D., and Russell, W. R.: Experimental Cerebral Concussion , Brain 64:93, 1941. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Otolaryngology American Medical Association

INFLUENCE OF VESTIBULAR STIMULATION ON THE FUSION FREQUENCY OF FLICKER: IN NORMAL SUBJECTS AND IN PATIENTS WITH POSTCONCUSSION SYNDROME

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Publisher
American Medical Association
Copyright
Copyright © 1943 American Medical Association. All Rights Reserved.
ISSN
0003-9977
DOI
10.1001/archotol.1943.00670040258007
Publisher site
See Article on Publisher Site

Abstract

Abstract Cerebral concussion may produce subjective disturbances for a considerable period without being associated with objective clinical signs. Since dizziness is one of the most frequent complaints, it has been assumed that the vestibular apparatus is frequently affected by concussion. Vertigo as a symptom complaint is subjective. Tests for this condition (Romberg test; deviation test; finger to nose test) depend on the patient's cooperation, and their significance is often easily appreciated by the patient. These tests are difficult to apply in cases of malingering. Because of its objective nature, one of the best tests available is the nystagmus reaction to caloric stimulation. Since the nystagmus reaction may be normal in patients with considerable disturbance, the presence of a pathologic nystagmus response would indicate objective impairment, but a normal nystagmus reaction would not exclude it. The variability of the nystagmus effect may be partly due to the judgment of the observer. Hence, References 1. Symonds, C. P.: Discussion on Differential Diagnosis and Treatment of Post-Contusional States , Proc. Roy. Soc. Med. 35:601, 1942. 2. Simonson, E., and Enzer, N.: Measurement of Fusion Frequency of Flicker as a Test for Fatigue of the Central Nervous System , J. Indust. Hyg. & Toxicol. 23:83, 1941. 3. Lee, R. H.: Critical Fusion Frequency of Flicker, Public Health Bulletin 265, United States Public Health Service, 1941, p. 195. 4. Enzer, N.; Simonson, E., and Blankstein, S. S.: The State of Sensory and Motor Centers in Patients with Hypothyroidism , Ann. Int. Med. 15:659, 1941 5. Fatigue of the Central Nervous System in Patients with Circulatory Insufficiency , Enzer Ann. Int. Med. 16:701, 1942. 6. Simonson, E.; Kearns, W. M., and Enzer, N.: Effect of Oral Administration of Methyltestosterone on Fatigue of Eunuchoids and Castrates , Endocrinology 28:506, 1941. 7. Simonson, E.; Enzer, N.; Baer, A., and Braun, R.: The Influence of Vitamin B (Complex) Surplus on the Capacity for Muscular and Mental Work , J. Indust. Hyg. & Toxicol. 24:83, 1942. 8. Simonson, E.; Enzer, N., and Blankstein, S. S.: The Effect of Amphetamine (Benzedrine) Sulfate upon Fatigue of the Central Nervous System, Measured by Means of the Fusion Frequency of Flicker , War Med. 1:690 ( (Sept.) ) 1941. 9. Simonson, E., and Enzer, N.: Effect of Pervitin (Desoxyephedrine) on Fatigue of the Central Nervous System , J. Indust. Hyg. & Toxicol. 24:205, 1942. 10. Kravkov, S. V.: (a) Action des excitations auditives sur la fréquence critique des papillotements lumineux , Acta ophth. 13:260, 1935 11. Effect of Smell on Color Vision , Fiziol. zhur. 28:313, 1940. 12. Allen, F., and Schwartz, M.: The Effect of Stimulation of the Senses of Vision, Hearing, Taste, and Smell upon the Sensibility of the Organs of Vision , J. Gen. Physiol. 24:105, 1940. 13. Kravkov.8a Allen and Schwartz.9 14. Kravkov.8b Allen and Schwartz.9 15. Livanov, M. N.: On Rhythmic Stimulation and the Mutual Relationship of Different Areas of the Cerebral Cortex , Fiziol. zhur. 28:189, 1940. 16. Crozier, W. J., and Wolf, E.: Temperature and Critical Illumination for Reaction to Flickering Light: III. Sunfish , J. Gen. Physiol. 22:487, 1939 17. IV. Anax Nymphs , Crozier J. Gen. Physiol. 22:795, 1939. 18. O'Brien, B.: Conference on Visual Fatigue, National Research Council, 1939, p. 4. 19. Jokl, E.: The Medical Aspect of Boxing , Pretoria, J. L. Van Schaik, Ltd., 1941. 20. Denny-Brown, D., and Russell, W. R.: Experimental Cerebral Concussion , Brain 64:93, 1941.

Journal

Archives of OtolaryngologyAmerican Medical Association

Published: Sep 1, 1943

References