Eleven of the first 14 American Ph.D.s in psychology were his students. James M. Cattell (1860-1944) was a student in G. Stanley Hall's laboratory course at Johns Hopkins University and went on to study with Wilhelm Wundt in Germany in 1883.
Drug-induced tremor is a simple nervous system and muscle response to certain medications. Drugs that can cause tremor include the following: 1  Cancer medicines such as thalidomide and cytarabine.  Seizure medicines such as valproic acid (Depakote), and sodium valproate (Depakene)
Some heart rhythm disorders can cause a fluttering in the chest, shortness of breath, chest pain or dizziness. Dehydration, or not getting enough fluid, causes dry and sticky mouth, tearless crying, and more in children. Benign essential tremor can cause shaking of the hands and forearms and a quivering voice. Medication side effects include nausea, vomiting, stomach upset, weakness, dizziness, seizures, and more.