John Is Blind and Is Therefore Unable to Detect the Light

question 5

Multiple Choice

John is blind and is therefore unable to detect the light that normally sets the suprachiasmatic nucleus (SCN) . If he is like most totally blind people:

• A)his sleep-wake, body temperature, and melatonin circadian rhythms can become desynchronized.
• B)he will suffer from attacks of cataplexy, especially when he is emotionally aroused.
• C)he will use sign language and tend to "sleep sign" during stage 4 NREM sleep when sleep talking typically happens.
• D)his REM sleep will consist of very vivid visual dreams most of which will be lucid dreams.

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Definitions:

Honestly Significant Differences

A statistical technique used to determine if the difference between two or more groups is significant and not likely due to chance.

Sample Means

The average value of a set of data points drawn from a larger population, representing an estimate of the population mean.

Analysis of Variance

Analysis of variance (ANOVA) is a statistical method used to compare the means of three or more samples to determine if at least one of the sample means is statistically significantly different from the others.

Population Variances

Population variances measure the variance of a given characteristic within an entire population, representing the dispersion of data points from the mean.