Which statement has NOT been proposed as a mechanism of LTP?
Postsynaptic receptors become more responsive to inputs.
Presynaptic neurons are changed by a retrograde messenger.
New synapses are built.
Postsynaptic neurons release more neurotransmitters.
Postsynaptic neurons release more neurotransmitters.
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All of the structures that we recognize as human, such as arms, legs, and eyes, develop during the first 2 weeks of pregnancy
Indicate whether the statement is true or false
What do Conway, Cohen, & Stanhope's (1991) findings indicate about long-term retention of knowledge learned in a cognitive psychology class?
a) Concepts were forgotten more rapidly than names. b) There was a strong relationship between student confidence and level of retention for course material knowledge. c) Recall performance was better than recognition performance. d) Knowledge of research methods material showed little decline over the retention interval.
Kuhl's research involving exposing infants from English-speaking homes to stories read in Mandarin found that _____
A) ?having the reader present with the infant was effective in teaching the infants to discriminate among Mandarin sounds, but a DVD of the same reader reading the same stories was not B) ?having the reader present with the infant was not effective in teaching the infants to discriminate among Mandarin sounds, but a DVD of the same reader reading the same stories was very effective C) ?having the reader present with the infant was effective in teaching the infants to discriminate among Mandarin sounds, as was a DVD of the same reader reading the same stories D) ?having the reader present with the infant was effective in teaching the infants to discriminate among Mandarin sounds, as was a DVD of the same reader reading the same stories, but only when the infants were at least 18 months old
What are order effects and what type of validity does it threaten?
What will be an ideal response?