Blockade of Neural Input from the Retina by Tetrodotoxin (TTX)

question 34

Multiple Choice

Blockade of neural input from the retina by tetrodotoxin (TTX) has this developmental effect.

• A) It prevents the formation of the pinwheel patterning in orientation columns.
• B) It releases inhibition of neurons that terminate in layer 4 of the visual cortex.
• C) It leads to excessive "pruning" or dearborization of LGN neurons.
• D) It prevents appropriate structuring and segregation of LGN layers.
• E) It has no effect on visual development.

Identify and control for confounding variables and understand their impact on research validity.

Recognize the importance of internal and external validity and the balance between them in experimental research.

Understand ethical considerations in research, involving both human and animal subjects.

Grasp the concept of replication and its significance in reinforcing the reliability of research findings.