Question

Difficulty: MediumIdioms and Phrasal Expressions in Context

For several decades, the conceptual framework of neuroplasticity was dismissed by mainstream neurologists, who firmly believed the adult brain's neural pathways were entirely static. It was only after advanced, high-resolution imaging demonstrated actual synaptic changes in response to environmental stimuli that this revolutionary paradigm began to take root in clinical practices. Today, this fundamental understanding guides cognitive rehabilitation therapies worldwide, completely transforming how physicians approach long-term brain trauma recovery.

As it is used in the passage, the phrase 'take root' most nearly means which of the following?

  1. become firmly established and acceptedAnswer
  2. B
    grow physical structures to extract nutrients from soil
  3. C
    trace its origins back to a primary ancestral source
  4. D
    remain permanently fixed in a single geographic location

Answer

become firmly established and accepted
The correct answer is the option stating that 'take root' means to 'become firmly established and accepted'. The context of the sentence describes how a previously dismissed scientific paradigm was adopted in clinical practices after research demonstrated its validity. The subsequent sentence reinforces this by stating that this understanding now guides therapies worldwide, indicating that the idea is fully integrated and accepted in the field.

Step-by-Step Solution

1
Analyze the context surrounding the target phrase.
The phrase 'take root' refers to a 'revolutionary paradigm' (neuroplasticity) entering 'clinical practices' after experimental evidence was presented.
Understanding the surrounding words allows the reader to see that the phrase is used metaphorically to describe the adoption of an idea within a professional field rather than physical growth.
2
Evaluate the choices to find the one that fits the metaphorical meaning of the phrase in this context.
The idea becoming 'firmly established and accepted' fits perfectly, as it describes a scientific paradigm gaining acceptance among clinical practitioners.
This meaning aligns with the subsequent sentence which states that the understanding now 'guides cognitive rehabilitation therapies worldwide,' confirming its established role.

Key Concept

Determining the meaning of idioms and phrasal expressions in context
Estimated Time:1m 30s
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