Short answer: Neuroscience and how the brain works appear across IELTS reading and Speaking, so precise terms such as neuron, synapse, plasticity and cognition are a fast route to a higher Lexical Resource band.
The 30 words below each come with a meaning, a natural collocation and an example sentence you can adapt straight into an essay or Speaking answer.
The brain and the mind turn up regularly in IELTS: Academic Reading passages on memory, learning and brain disorders, and Speaking Part 3 discussions of intelligence, ageing and how habits form.
Because the theme is well defined, its vocabulary is learnable in advance — and a candidate who writes about cognition, the plasticity of the brain and the role of a neurotransmitter instead of "thinking" and "brain chemicals" signals a higher band at once.
This guide gives you 30 genuine Band 7+ neuroscience words, each with the collocation that makes it usable and an example sentence in an essay-style context.
Why topic vocabulary lifts your Lexical Resource band
In both Writing and Speaking, Lexical Resource is one of four assessment criteria, each carrying equal weight, so it accounts for a full quarter of your mark on those papers.
The public band descriptors state that Band 7 requires "a sufficient range of vocabulary to allow some flexibility and precision" and the use of "less common lexical items… with some awareness of style and collocation", as set out in the official IELTS Writing Task 2 band descriptors.
Preparing topic vocabulary in advance is the most efficient way to meet that standard on a well-defined subject like neuroscience — and the same words help you decode dense Academic Reading passages faster.
The honest caveat is that the descriptors reward accuracy, not decoration. A less common word placed in the wrong collocation — "make a cognition", "a big synapse" — reads as reach without control and can lower your band rather than raise it.
That is why every entry below pairs the word with its natural partners. For a structured month of building this kind of active, in-context vocabulary across topics, follow our 30-day vocabulary plan.
30 Band 7+ Neuroscience words
Read down the table for the meaning, then across to the collocation and example — the example shows the word doing the job it would do in a real answer.
| Word | Meaning | Collocation / common usage | Example sentence |
|---|---|---|---|
| neuron | a nerve cell that transmits electrical and chemical signals | a brain neuron, neurons fire | Billions of neurons fire in complex patterns whenever we form a memory. |
| synapse | the tiny junction across which signals pass from one neuron to another | a synapse, a synaptic connection | Learning strengthens the synapses between the neurons involved in a task. |
| cognition | the mental processes of acquiring knowledge and understanding | human cognition, impair cognition | Sleep deprivation measurably impairs cognition and slows reaction times. |
| cognitive | relating to thinking, reasoning and memory | cognitive ability, cognitive decline | Regular mental activity may slow the cognitive decline associated with ageing. |
| plasticity | the brain's ability to reorganise itself and form new connections | neural plasticity, brain plasticity | Neural plasticity allows the brain to rewire itself after an injury. |
| cortex | the outer layer of the brain, responsible for higher functions | the cerebral cortex, the prefrontal cortex | The prefrontal cortex governs planning and decision-making. |
| neurotransmitter | a chemical that carries a signal across a synapse | release a neurotransmitter, a neurotransmitter such as dopamine | Dopamine is a neurotransmitter closely linked to motivation and reward. |
| stimulus | something that provokes a response in an organism | a sensory stimulus, respond to a stimulus | The brain filters countless sensory stimuli every second. |
| neural | relating to nerves or the nervous system | a neural pathway, neural activity | Repeated practice reinforces the neural pathways that control a skill. |
| perception | the way the brain interprets and organises sensory information | visual perception, sensory perception | Perception is not a passive recording but an active construction by the brain. |
| consolidation | the process by which a new memory is stabilised after learning | memory consolidation, consolidate memories | Sleep plays a vital role in the consolidation of new memories. |
| hippocampus | a brain region central to forming new memories | the hippocampus, damage to the hippocampus | Damage to the hippocampus severely disrupts the formation of new memories. |
| neurodegenerative | relating to the progressive loss of nerve-cell function | a neurodegenerative disease, a neurodegenerative disorder | Alzheimer's is a neurodegenerative disease that gradually destroys memory. |
| impulse | an electrical signal transmitted along a nerve fibre | a nerve impulse, transmit an impulse | A nerve impulse travels along the fibre in a fraction of a millisecond. |
| arousal | the state of being physiologically alert and responsive | heightened arousal, a state of arousal | Stress hormones produce a state of heightened arousal that sharpens the senses. |
| lesion | a region of damaged tissue in the brain or nervous system | a brain lesion, a lesion in | Studying patients with a brain lesion reveals which region controls a given function. |
| reflex | an automatic, involuntary response to a stimulus | a reflex action, a knee-jerk reflex | A reflex bypasses conscious thought, allowing the body to react instantly. |
| dopamine | a neurotransmitter associated with reward, pleasure and motivation | a dopamine release, dopamine levels | The brain releases dopamine when we anticipate a reward. |
| cerebral | relating to the brain, especially its higher functions | cerebral function, a cerebral hemisphere | The two cerebral hemispheres specialise in different kinds of task. |
| neuroimaging | techniques for producing images of the structure or activity of the brain | neuroimaging techniques, a neuroimaging study | Neuroimaging allows researchers to watch which brain regions activate during a task. |
| degeneration | the gradual deterioration of tissue or of a function | neural degeneration, cell degeneration | The disease causes the steady degeneration of nerve cells. |
| inhibition | the suppression of a response, action or impulse | neural inhibition, impulse inhibition | The frontal lobe is responsible for the inhibition of inappropriate impulses. |
| sensory | relating to the senses and the information they gather | sensory input, sensory information | The brain integrates sensory input from the eyes, ears and skin into a single experience. |
| neurogenesis | the growth and development of new neurons in the brain | adult neurogenesis, promote neurogenesis | Exercise appears to promote neurogenesis in the adult brain. |
| axon | the long fibre of a neuron that carries signals away from the cell body | an axon, along the axon | Each neuron has a single axon that can extend a considerable distance. |
| myelin | the fatty sheath that insulates nerve fibres and speeds up signals | the myelin sheath, loss of myelin | The loss of the myelin sheath slows the transmission of nerve signals. |
| neurological | relating to the nervous system and its disorders | a neurological disorder, neurological damage | A stroke can cause lasting neurological damage. |
| encode | to convert an experience into a form the brain can store | encode a memory, encode information | The brain must first encode an experience before it can be recalled later. |
| retrieval | the process of recalling information already stored in memory | memory retrieval, a retrieval cue | A familiar smell can trigger the retrieval of a long-forgotten memory. |
| receptor | a molecule on a cell that receives and responds to a chemical signal | a receptor, bind to a receptor | Neurotransmitters work by binding to receptors on the receiving neuron. |
How to turn these words into marks
Learn each word inside its collocation, not on its own: memorising "consolidation" is close to useless, but "memory consolidation" or "neural plasticity" gives you a ready-made phrase you can drop in without a grammar risk.
Use one or two precise items per paragraph where they are natural, and keep the rest of your English plain — accuracy outscores a sentence stuffed with impressive nouns you cannot control.
To make these words active, meet them in context: our neuroscience reading practice generates Cambridge-style passages on this theme so you see the collocations working in real sentences, and the daily Word Coach gives you a word a day with practice in using it, which is how vocabulary moves from "recognise it" to "produce it under exam pressure".