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- STAC: The Scaffolding Theory of Aging and Cognition proposed in 2009 is a conceptual model of neuroimaging to explain how the combined effects of adverse and compensatory neutral processe produce varying levels of cognitive function. [ P QUESTION 22 Which one is not the best way to describe necessary "threshold" as "sensitivity" declines with age? Individuals with lower sensitivity also have a lower threshold or tolerance for stimulation. O As sensitivity goes down, the threshold must be higher to compensate. Individuals with a low-sensitivity, need more stimulation than people with high-sensitivity. none of the above QUESTION 23Limbic System, Emotion, Reward, and Addiction Describe how stimuli gain emotional significance using fear conditioning as an example at the introduction level (Introduction to Neuroscience College Level). Provide many of your own digital or handwritten diagrams to complement your explanation.Part 2: Please read the following scenarios. For each scenario, identify the confound and suggest how it might be removed in a follow-up experiment. McCann and Holmes (1984) tested the hypothesis that exercise reduces depression. They randomly assigned depressed undergraduate women either to an exercise condition (attending an aerobics class a couple of times a week for ten weeks) or to a relaxation training condition (the individuals relaxed at home by watching a videotape over the same period of time). Although the results showed that the exercise group reported less depression at the end of the ten-week period than did the relaxation group, why can't the researchers conclude that exercise reduces depression?
- Explain. Do not use any ai toolIf you will be discussed how synapse work and its feature, what will you say? How would you connect the function of synapse to human behavior?Please answer both.its all a one question. One way to classify brain regions is based on their function. Consequently, brain regions can be classified as Primary Sensory Areas, Unimodal Association Areas, or Multimodal Association Areas. a) What do Primary Sensory Areas and Unimodal Association Areas have in common? b) What do Multimodal Association Areas do, in general? And what is 1 example of a cognitive function that would require the involvement of Multimodal Association Areas?
- Anxious people sleep poorly. Which of the following is most likely true? (check all that apply) there is a positive correlation between sleep and anxiety. there is a negative correlation between sleep and anxiety. It is clear from this association that anxiety causes poor sleep. the directionality problem could be an issue in this example. the third variable problem could be an issue in this example. The determination of causality depends on the strength of the correlation. The determination of causality depends on the direction of the correlation.Briefly describe our brain's mesolimbic dopamine system. (A) Which brain structures are involved in this system? (B) What type of behavior does it regulate? (C) Even though social media (or video games and the like) isn't something ingested, do you think this system is involved in our social media behavior? Or do you think something else is involved? Please provide a brief, but specific response. Answer as much as you can please!!!!!!! Thank you!!!!!!how do you explain behavior using brain dynamics?
- In associative learning studies of monkeys, dopaminergic neural activity in the ventral tegmental area of subjects that had been successfully conditioned (i.e. after learning had taken place) to a stimulus showed… Group of answer choices decreased activity when they were given a reward. decreased activity in response to the conditioned stimulus. increased activity when they were given a reward. decreased activity when the predicted reward was withheld. no change in activity in response to the conditioned stimulusIn associative learning studies of monkeys, dopaminergic neural activity in the ventral tegmental area of subjects that had been successfully conditioned (i.e. after learning had taken place) to a stimulus showed… Group of answer choices decreased activity when they were given a reward. decreased activity in response to the conditioned stimulus. increased activity when they were given a reward. decreased activity when the predicted reward was withheld.Researchers investigating the effect of exercise on cognitive functions conducted a con- trolled experiment in which rats were randomly assigned to sedentary (Sed), low-intensity exercise (Low-Ex), or high-intensity exercise (High-Ex) groups. During this exercise regi- ment, rats were also trained to navigate a specialized water maze, and their escape la tency, the time it took them to escape the maze, was recorded. The results of this experi- ment are depicted in the figure below. escape latency (sec) 100 80 60- 40- 20 0- day 10 day 11 Escape latencies during the training phase Based on the data above, day 12 (b) Identify the control group in the experiment. sed -- low-ex -- high-ex (a) Identify the dependent and independent variables in the experiment. day 13 Respond to each part in 3 to 4 complete sentences. (c) Compare the effects of low-intensity and high-intensity exercise on the rats' cognitive func- tion during the training period.