Reading ComprehensionDifficulty: Easy

PT142 S3 P3 Q18 Explanation

Neuroscience & Criminal-Justice

A free, expert breakdown of this official LSAT Reading Comprehension question.

TopicsMethodScience

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Passage

Passage

To a neuroscientist, you are your brain; nothing causes your behavior other than the operations of your brain. This viewpoint, together with recent findings in neuroscience, radically changes the way we think about the law. The official line in the law is that all that matters is whether you are rational, but our punishment buck when we punish some person, then it is not worth punishing that person.

Passage

Neuroscience constantly produces new mechanistic descriptions of how the physical brain causes behavior, adding fuel to the deterministic view that all human action is causally necessitated by events that are independent of the will. It has concept of free will can coexist with determinism.

In 1954 English philosopher Alfred J. Ayer put forth a theory of “soft determinism.” He argued, as the philosopher David Hume had two centuries earlier, that even in a deterministic world, a person can still act freely. Ayer distinguished between free actions and constrained actions. Free actions are those that are caused someone performs a constrained action to do A, he or she could have done only A.

Ayer argued that actions are free as long as they are not constrained. It is not the existence of a cause but the source of the cause that determines whether an action is free. Although Ayer did not explicitly discuss the brain’s role, one could make the analogy that those actions—and indeed constrained, and are therefore free, even though they may be determined.

What this question is testing

Method

Your task

Describe how the argument proceeds — the technique it uses to reach its conclusion.

Common trap

Answers that describe a method the argument doesn't actually use.

Winning move

Track the role each statement plays, then match that to the choice describing the same moves.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
18.

Which one of the following concepts plays a role in the argument of passage B but not in

Answer choices

  1. Correct80% picked this

    mental

    Why this is right

    Passage B mentions this in the late middle of the 2nd paragraph, as an example of a constrained action: something forcing you .. to perform an action, as in mental disorders such as kleptomania Passage A was saying that we might be victims of self-delusion if we think that we are freely choosing our own actions, but that's not the same as a mental disorder.

    Skill tested: Method · how this choice captures the passage's function is the move to repeat next time.

  2. Fails A5% picked this

    free

    Free will = free choice = the lifeblood of both passages.

  3. Fails A11% picked this

    Determinism = Causality = the lifeblood of both passages.

  4. Fails A2% picked this

    In the early middle of Passage A, the sentence beginning "Indeed, ... " talks about the idea that believing we actually have free will could be a self-delusion.

  5. Opposite: In Passage A, not B1% picked this

    moral

    This is in the same sentence as the "self-delusion" line in (D), in the early middle of the passage, in the sentence starting with "Indeed". Also, it is not discussed in Passage B.

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