Reading ComprehensionDifficulty: Hard

PT145 S3 P3 Q19 Explanation

Communication Systems

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

TopicsAuthor's AttitudeScience

Keep going in LSAT Lab

  • Save & drill this skill build targeted practice sets from questions like this one

  • Video walkthroughs watch every question solved step by step

  • 81 official LSATs as questions, timed sections & full-length tests

Full official LSAT questions are available through LawHub. This page provides LSAT Lab's explanation, strategy, and review tools without republishing the full official question.

Passage

Passage A One function of language is to influence others’ behavior by changing what they know, believe, or desire. For humans engaged in conversation, the perception of the most common vocalization stimulus.

While animal vocalizations may have evolved because they can potentially alter listeners’ behavior to the signaler’s benefit, such communication is—in contrast to human language—inadvertent, because most animals, with the possible exception of chimpanzees, cannot attribute mental states to others. The male Physalaemus frog calls because calling causes females to approach and other Many animal vocalizations whose production initially seems goal-directed are not as purposeful as they first appear.

Passage B Many scientists distinguish animal communication systems from human language on the grounds that the former are rigid responses to is spontaneous and creative.

In this connection, it is commonly stated that no animal can use its communication system to lie. Obviously, a lie requires intention to deceive: to judge whether a particular instance of animal communication is truly prevarication requires knowledge of the animal’s intentions. Language philosopher H. P. Grice explains that for an individual merely a conditioned reflex: animals may use communicative signs but lack conscious intention regarding their use.

But these arguments are circular: conscious intention is ruled out a priori and then its absence taken as evidence that animal communication is fundamentally different from human language. In fact, the narrowing of the perceived gap between animal communication and human language revealed by recent research with chimpanzees and other animals calls that animals respond mechanically to stimuli, whereas humans speak with conscious understanding and intent.

What this question is testing

Author's Attitude

Your task

Pin down exactly what the question asks about the passage — a detail, the author's view, the structure, or the main point — before looking at the choices.

Common trap

Answers that restate a true detail from the passage but don't answer the specific question being asked.

Winning move

Anticipate the answer in your own words from the passage, then find the choice that matches that prediction.

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

The question
19.

Passage B differs from passage A in that passage B

Answer choices

  1. Unsupported: bigger science lover2% picked this

    optimistic regarding the ability of science to answer certain

    It would be hard to argue that passage B is more of a believer in the power of science to answer questions. Both authors support their arguments with reference to scientific findings, so they both seem optimistic that science can help us answer this fundamental question about communication. Passage A's 2nd paragraph says, "Research also suggests that ..." Passage B's final sentence says, ".... revealed by recent research".

  2. Correct64% picked this

    disapproving of the approach taken by others writing on the same

    Why this is right

    This matches up with the final paragraph of B, where the author is rolling her eyes at the stupid logic of writers such as Maritain, who "exemplifies this view that conscious intention is a category of mental experience unique to humans". The author of B complains that this common type of argument is circular. Scientists and philosophers are arbitrarily deciding that nonhuman animals don't have conscious intention, and then arguing that human communication is special because it's the only one with conscious intention. The author of B doesn't see how they can be so confident that nonhuman animals don't have conscious intention, or for that matter, that humans do. Passage A doesn't have any criticisms regarding how people writing on animal communication think about or approach this topic, so the fact that B has a criticism makes B more disapproving.

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

  3. Out of Scope: accept conflicting positions7% picked this

    open-minded in its willingness to accept the validity of apparently

    The author of B is not willing to accept the validity of the ideas espoused in passage A. She thinks that the view that human communication is special and different because only human communication comes with conscious intention is totally off base. This answer is actually talking about being willing to accept that "A" and "not A" are both valid positions, even though they seem to conflict. Neither author is doing that. That would be like saying, "Sure it's valid to think that only humans have conscious intention, but it's also valid to think that nonhuman animals might also have conscious intention."

  4. Unsupported: more supportive7% picked this

    supportive of ongoing research related to the question

    Just like with (A), it's hard to say that either passage was more supportive of or more believing in science or research. Both passages refer to research. Passage A says "Research also suggests that" and "experiments reveal ..." Passage B ends by citing recent research. The fact that B is the only one that mentions recent research might make us think they care more about ongoing research, but at best we could say that B seems more aware of ongoing research, not more supportive.

  5. Too Strong20% picked this

    circumspect in its refusal to commit itself to any positions with respect to

    Too Strong: refuse to commit to any Out of Scope: still-unsettled research Q's The word "circumspect" means "cautious, measured, wary", but ultimately even if we don't know that word we can judge this answer as being inaccurate based on the fact that it accuses Passage B of "refusing to commit itself to any positions". B's final sentence seems to commit to the position that recent research reveals that there's less of a gap between animal communication and human language than has been previously been perceived. It also commits to the position that we should be questioning whether there's really a qualitative difference between animal and human communication / whether animals are only responding mechanically / whether humans are really speaking with conscious understanding. This answer is tempting because Passage A seems pretty sure that human communication is different and Passage B is more like, "Is it? Maybe we should question the assumptions underlying that." If the answer were saying that Passage B is more "circumspect about whether human communication is qualitatively different from animal communication", then we'd be fine picking it. But it's too strong to say that B "refused to commit to any position".

Continue the review in LSAT Lab

Save this question, watch the video walkthrough, and drill similar questions in your LSAT Lab account.

LSAT Lab

Turn this review into a targeted study plan.

Save this question, drill more like it, watch the video walkthrough, and track your progress in your LSAT Lab account.

Start practicing free