medium · LSAT Logical Reasoning
A science writer surveys the discovery that the adult brain generates new neurons. She notes that for a newborn neuron to be useful it must survive, migrate to the right place, mature, and weave itself into existing circuits—a complex, multi-step sequence that often fails. For this reason she ends by warning that translating the finding into clinical therapy will be a long and uncertain road.
Which one of the following, if true, would most seriously challenge the writer's cautious forecast?
- Enriching an animal's environment has been shown to improve memory performance in primates.
- A newly developed procedure lets transplanted neurons survive, settle, and wire into the circuits of human patients reliably and at once.
- Government funding for research on adult neuron generation has doubled over the past year.
- Recent imaging shows that new-neuron formation occurs in more regions of the human brain than scientists had assumed.
- Adult neuron generation in humans proceeds at a far slower pace than it does in rodents.
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More LSAT Logical Reasoning practice
- Which one of the following is an assumption required by the argument?
- Which one of the following can be properly inferred from the statements above?
- The question type just described is best identified as which one of the following?
- The reasoning in the argument is flawed in that the argument
- The reasoning in the argument is flawed because the argument
- Which one of the following most accurately describes the relationship the statement establ
- Which one of the following can be validly inferred from the two conditionals above?
- Which one of the following must be true given the statement above?