What Can We Conclude from Experiments in Which Isolated Suprachiasmatic

question 1

Multiple Choice

What can we conclude from experiments in which isolated suprachiasmatic nucleus (SCN) tissue was maintained in a petri dish?

• A) The SCN cannot maintain normal rhythmicity without input from the retinohypothalamic pathway.
• B) The SCN cannot maintain normal rhythmicity without the influence of melatonin.
• C) The SCN regulates other internal clocks,but requires their input in order to maintain normal rhythmicity.
• D) The SCN can maintain normal rhythmicity without any input.

---

Definitions:

Piaget

A psychologist known for his theory of cognitive development that describes how children's intellect grows through stages.

Logically

In a manner that is based on clear, sound reasoning or the formal principles of reasoning.

Egocentrically

Thinking primarily about oneself without regard for the feelings or views of others; seeing things from one's own perspective only.

Symbolic Thought

The capacity to use symbols, language, or other abstract representations to think about and communicate complex concepts.