According to the Radiolab episode "Unraveling Bolero," the basal ganglia, the part of the brain we move with, can also be known as our __________ brain.

Notice: The questions and answer sets for this quiz are protected under copyright, and may not be reproduced without the author's consent.

Question

According to the Radiolab episode "Unraveling Bolero," the basal ganglia, the part of the brain we move with, can also be  known as our __________ brain.

Notice: The questions and answer sets for this quiz are protected under copyright, and may not be reproduced without the author's consent.

BlackTom AI · Accepted Answer

The basal ganglia are often referred to as the "reptile brain." This label comes from evolutionary and functional descriptions that emphasize the basal ganglia’s role in basic, automatic motor patterns and stereotyped behaviors—traits associated with more ancient vertebrate brains.

1) Relevant knowledge points and concepts
- Basal ganglia: a group of deep brain nuclei involved in movement initiation, habit formation, and procedural learning.
- Triune brain model (Paul MacLean): a heuristic model dividing the brain into reptilian (brainstem and basal ganglia), limbic (emotion), and neocortical (higher cognition) components. In that framework the basal ganglia are part of the "reptilian" complex.
- Radiolab’s wording: the episode characterizes the basal ganglia as our more primitive, movement-focused neural substrate, calling it the “reptile” brain.

2) Step-by-step reasoning
- The basal ganglia control and coordinate movement patterns, gating motor programs and habits.
- Evolutionarily, these structures are older than the mammalian neocortex and are conserved across vertebrates.
- Popular neuroscience descriptions (as used in Radiolab) equate these primitive motor control structures with the “reptile” portion of the brain because reptiles rely heavily on stereotyped motor behaviors governed by these circuits.
- Therefore, the descriptive term Radiolab used for the basal ganglia is “reptile brain.”

3) Calculations
- Not applicable; no numerical calculations are required for this conceptual question.

4) Why the correct answer is correct
- “Reptile” matches both the triune-brain labeling and Radiolab’s characterization of the basal ganglia as the primitive motor/control center—hence “our reptile brain.”

5) Why other options are incorrect
- Mammal: implies neocortical, higher-order processing; basal ganglia are older than the mammalian neocortex.
- Bird: bird brains are organized differently (pallium structures) and “bird brain” typically connotes different functions; Radiolab did not use this term.
- Fish: while fish have homologous subcortical structures, common popular terminology labels the basal ganglia as reptilian rather than piscine.

Conclusion: The correct answer is "reptile," which matches the provided answer.

类似问题

(14.2) The ________________ is a collection of subcortical brain areas that inhibits the cortex and makes it less likely for a motor movement to be executed.

The basal ganglia are involved in all of the following processes except:

Dysfunction of the basal ganglia is known to be implicated in all of the following except:

Name the nuclear mass that the black arrow is pointing to in this image [input]

Name the nuclear mass that the black arrow is pointing to in this image [input]

The __________ are a group of nuclei that surround the thalamus and regulate body movements by processing sensory and motor information coming from the cerebral cortex.

Which deep brain structures work to initiate and terminate motor functions?

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