HM Had Part of His Brain Removed in 1953 When

question 253

Essay

H.M. had part of his brain removed in 1953 when he was 27 years old. H.M.'s disorder had been life-threatening and so the surgery had been a medical necessity. But the surgery did have profound effects on H.M.'s memory. What brain structure was removed? Integrate information regarding the reconstruction of memory with information on the brain presented earlier in the text. Using the three-box model of memory, explain how the flow of information has been disrupted in H.M.

Understand the differences in oxygen affinity between adult and fetal hemoglobin.

Identify the functions of various blood tests and their relevance to blood chemistry.

Describe the transport mechanisms of carbon dioxide in the blood.

Recognize the development stages of erythrocytes and the impact of erythropoietin on erythropoiesis.

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Definitions:

Conventional Values

Traditional beliefs or norms that are widely accepted within a society or among members of a particular group.

Recognized Authority

An individual or institution regarded as being knowledgeable or having official power in a particular field.

External Locus

A psychological perspective where an individual believes that control over their life events and outcomes lies outside themselves.

Control Fate

The concept of having influence or control over the outcomes of one's actions or the direction of events in one's life or environment.