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Lucid Dreaming A Lucid Dream is when a person dreaming becomes aware that he is dreaming, and is able to influence or…

LSD LSD, which stands for lysergic acid diethylamide, is a very powerful hallucinogenic drug. Many people know LSD as “acid”. This drug…

Long-Term Memory The term long-term memory refers to the unlimited capacity memory store that can hold information over lengthy periods of time.…

Longitudinal Study A longitudinal study is somewhat similar to a repeated measures study but in this case, people are studying and restudied…

Lobotomy Although this is not done much at all anymore (if at all), it is a procedure that was once used to…

Lithium Carbonate Lithium Carbonate is a chemical compound that is useful in treating bipolar disorder (also known as manic depression). Many people…

Limbic System The limbic system is a grouping of structures in the brain that sits between in the most primitive part of…

Libido The terms libido was introduced by Sigmund Freud and is, at a very basic level, sexual desire and urges. The libido,…

Levels of Processing This is a theory of memory that is contrary to the “stores” theory of memory. According to this theory,…

Lesion The lesion is a term I hear all the time in relation to physical problems. A lesion is a damage to…