What key evidence has emerged to disprove the myth that thimerosal (a mercury-based preservative) is responsible for autism?
a. Historically, no children with autism ever came into direct contact with thimerosal.
b. The incidence of autism has climbed after thimerosal was removed from the MMR vaccine.
c. As the amount of thimerosal in baby food has increased, the incidence of autism has decreased.
d. The incidence of autism has decreased significantly, but only in females who are immune the impact of thimerosal.
b
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PET scans and MRI have supported the belief that the prefrontal cortex is involved in
a. decision making. c. sensations. b. problem solving. d. decision making and problem solving.
A __________ is a segment of DNA along the length of the chromosome
A) phenotype B) genotype C) gene D) gamete
Which of the following is not true of classical conditioning?
a. It involves pairing of a UCS and a CS. b. It was demonstrated by Pavlov with his dogs. c. It involves shaping procedures. d. The CR can be eliminated in a process called extinction.
The McGurk effect occurs when:
a) we experience a stimulus from one sensory modality (e.g., audition) in another sensory modality (e.g., vision). b) sounds coming from the speakers distributed throughout a theater seem to be coming from the screen. c) visual cues impact how we perceive speech sounds. d) we experience phantom tactile sensations because of visual cues.