Jaguars, Cheetahs, and Other Great
¶ … jaguars, cheetahs, and other great cats to have mostly slow-twitch, non-fatiguing muscles in their legs or mostly fast-twitch, quickly fatiguing muscles? What kinds of animals might have mostly the opposite kind of…
Basal ganglia structure and function
The many roles that the basal ganglia plays in the central nervous system have been revealed primarily through disease and trauma. Patients with Parkinson's and Huntington's disease obviously suffer from motor control problems, which is the result of dopaminergic dysfunction in the basal ganglia. However, the problems related to basal ganglia disease or dysfunction is not limited to motor control, but also involves nondeclarative learning and memory. This essay examines what is known about the basal ganglia through testing of patients who are suffering from disease or injury to this essential brain function organizing center.
Terri on February 25, 1990, Terri Schiavo
On February 25, 1990, Terri Schiavo suffered from severe brain injury. She could no longer do anything for herself and was without an attorney. Her husband named Michael Schiavo was her legal guardian. Due to brain damage, Ms. Schiavo did not have the ability to swallow and was feed through a feeding tube.
Psychoactive Substance Use and Abuse a Psychoactive
A psychoactive substance refers to any chemical which both impacts the central nervous system and the way the brain functions. Psychoactive substances refer to stimulants (cocaine, methamphetamine, dextroamphetamine), sedatives and analgesics (alcohol, heroin), hallucinogens (PCP, psychoactive mushrooms). As stated in the DSM-IIIR "psychoactive substance abuse is given the definition of being "a maladaptive pattern of use indicated by continued use despite knowledge of having a persistent or recurrent social, occupational, psychological or physical problem that is caused by the use [or by] recurrent use in situations in which it is physically hazardous" (Nordegren, 2002, p.11).
Depression Psychology and Treatment for Depression There
When a person is battling depression there are all different types of treatments that he or she can consider. Some are more effective than others, of course, and there are some kinds of treatments that will work for one person but that will not work for another. To that end, each person who is depressed should seek out the help that will be right for him or her, instead of simply accepting what he or she is offered.