biology

Lateral intraparietal cortex

Lateral intraparietal cortex is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Lateral intraparietal cortex rather than just read about it. In short: The lateral intraparietal cortex (area LIP) is found in the intraparietal sulcus of the brain. This area is most likely involved in eye movement, as electrical stimulation evokes saccades (quick movements) of the eyes.

Key takeaways

Lateral intraparietal cortex belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Lateral intraparietal cortex to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Lateral intraparietal cortex from memory before moving on to harder problems.

Reference excerpt

The lateral intraparietal cortex (area LIP) is found in the intraparietal sulcus of the brain. This area is most likely involved in eye movement, as electrical stimulation evokes saccades (quick movements) of the eyes. It is also thought to contribute to working memory associated with guiding eye movement, examined using a delayed saccade task described below:

A subject focuses on a fixation point at the center of a computer screen. A target (for instance a shape) is presented at a peripheral location on the screen. The target is removed and followed by a variable-length delay period. The initial focus point in the middle of the screen is removed. The subject's task is to make a saccade to the location of the target. Neurons in area LIP have been shown to start responding with the initial presentation of the stimulus. The neurons keep responding through the delay period until the saccadic eye movement starts and the animal soon focuses on the exact location of the previously shown target. There is also evidence for neurons firing for saccadic responses in the two-alternative forced choice task. The conclusion of this task experiment is that neurons in area LIP store information (the location of the target) useful for guiding the saccadic movement; that is, this area of the cortex shows modality-specific working memory. Areas showing specificity for other modalities have been located.

References

Worked examples

Example 1 — a first encounter with Lateral intraparietal cortex

Start with the simplest possible case. Write down what Lateral intraparietal cortex claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Lateral intraparietal cortex before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Lateral intraparietal cortex ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Lateral intraparietal cortex

In research: Lateral intraparietal cortex appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Lateral intraparietal cortex in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Lateral intraparietal cortex is common in secondary-school and first-year university syllabi. It links to neighbouring topics Cerebrum, Neuroanatomy stubs, Neuroscience of memory, so understanding it makes those chapters shorter.
In everyday life: Look for Lateral intraparietal cortex outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Lateral intraparietal cortex in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Lateral intraparietal cortex means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Lateral intraparietal cortex out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Lateral intraparietal cortex in simple terms?

Why does Lateral intraparietal cortex matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Lateral intraparietal cortex?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Lateral intraparietal cortex.