How do the trichromatic theory and opponent-process theory explain color vision?
What will be an ideal response?
Th e trichromatic theory says that there are three different kinds of cones in the retina, and each cone contains one of three different light-sensitive chemicals called opsins. Each of the
three opsins is most responsive to wavelengths that correspond to each of the three primary colors: blue, green, and red. All the other colors can be mixed from these three primary colors.
The opponent-process theory says that ganglion cells in the retina and cells in the thalamus of the brain respond to two pairs of colors: red-green and blue-yellow. When these cells are excited, they respond to one color of the pair; when inhibited, they respond to the complementary pair.
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Helene spends a few weeks helping the victims of a tornado because she believes that people should help others, especially those who deserve assistance. Helene's thoughts regarding her actions are consistent with the norm of
a. reciprocity. b. justice. c. equity. d. social responsibility.
Native American medicine has four traditional practices that are common to most tribes. The following is an example of one of them:
a. the use of herbal remedies.. c. using eggs and garlic for healing. b. the use of animals in healing d. the use of.the wind in healing.
Recent research has shown that living in a harsh family environment leads to the modification of the children's genes. Specifically, they show excessive immune responses and reduction in cortisol's ability to properly regulate inflammatory responses
Indicate whether the statement is true or false
The activation-synthesis theory of dreaming asserts that ________
a. the purpose of dreaming is to express unconscious wishes, thoughts, and conflicts. b. there is no purpose to dreaming; dreams occur because of random brainstem signals. c. the purpose of dreaming is to resolve current concerns and problems. d. dreaming is a byproduct of a process of eliminating or strengthening neural connections.