The study of nervous systems, from the properties of individual neurons to circuits, development, behavior and information processing.
Research connecting neural processes with questions about learning and education. A plausible neural mechanism is not sufficient evidence that a particular classroom method improves pupil outcomes.
A misconception presented as a consequence of brain knowledge or used as a brain-based educational explanation. Not every unsupported educational claim is specifically neuroscientific, so survey categories and definitions need examination.
Understanding relevant brain science and how to evaluate claims derived from it. Knowing isolated facts should be distinguished from reasoning about a new educational claim and selecting an effective intervention.
Variation in neurological and cognitive characteristics across people. Describing variation does not settle which features cause disability or which forms of support an individual needs.
Processes that plan, initiate and adjust movement using internal goals and sensory information. A deficit in execution can mimic poor motor learning unless baseline performance and improvement with practice are assessed separately.
Facilitation or interference caused by correspondence between stimulus location and response location. It can mimic an imitation effect if location and action identity are not separated.
Use of representations related to one’s own action system while processing another action. Evidence for recruitment must be distinguished from evidence that simulation is necessary for every form of understanding.
A functional asymmetry between cerebral hemispheres, measured for a stated task, contrast or operation. Population-level left dominance does not imply complete right-side inactivity or an identical pattern in every individual.
For nonnegative measurements with , one convention is . The bound gives . Multiplying both measurements by the same positive factor leaves the index unchanged. A change from to changes the index from to without increasing . Thus a reduced leftward index alone cannot establish right-side recruitment. Baseline, threshold and negative-response conventions must be specified.
Perturbing cellular function using a pharmacologically responsive introduced component. Ligand metabolism and actions on endogenous receptors require controls; genetic targeting alone does not guarantee a specific behavioural mechanism.
Designer receptors used to alter cell signalling in response to an administered ligand. The name does not establish that the ligand is inert elsewhere or that its administered form is the species acting in the brain.
A rapid response to an abrupt sound. Its amplitude can be modulated by threat, attention, motor capacity and drugs; baseline startle and potentiation should be examined separately.
Regulation through opioid-receptor signaling. Blocking such signaling can test its causal contribution to a task response, but a system-level pharmacological effect does not identify the same neurons as the representation of two different experiences.
Changes in the functional organization, connectivity or physiological operation of neural systems with experience, altered input or development. Rapid unmasking and slower structural reorganization are different candidate mechanisms; an imaging activation change alone does not distinguish them.
A change in neural organisation that worsens or constrains function under specified conditions. Increased activation alone does not establish maladaptation; a controlled intervention must test the proposed harmful contribution.
A contribution from an altered or additionally recruited system that supports performance after disruption. Compensation can be necessary yet incomplete, and can differ across regions, tasks and recovery stages.
Changes in the contribution of one sensory system to processing information from another modality, often investigated after altered sensory input. Imaging can identify recruitment; causal perturbation can test whether the recruited network contributes to a task.
Adaptation supporting task performance when sensory input is reduced. Practice, altered attention, use of alternative cues and changes in neural recruitment can interact. Improvement in one task can coexist with limitations in another.
Study of the biological mechanisms of behaviour and cognition, using converging behavioural, physiological and intervention evidence.
Methods for measuring and manipulating nervous-system structure and function. The inference permitted by a recording, an anatomical reconstruction and a perturbation differs; convergence is more informative than treating them as interchangeable.
An independently specified task contrast used to identify a region for subsequent analysis. Individual localisation can distinguish neighbouring language-selective and domain-general regions, while independent data reduce circularity.[ref]
Anatomical links among neural regions. Diffusion-based tractography estimates aspects of white-matter organisation indirectly and should not be equated with a direct count of synapses or information flow.
Statistical dependence between activity measurements from different locations. Resting-state correlation does not establish direct anatomical connectivity, the direction of influence or a causal role in behaviour.
A volume element in an imaging measurement. In functional magnetic resonance imaging, one voxel aggregates an indirect signal over many cells, so a shared response at voxel or region scale need not imply the same active neuronal population.
Measurement of the activity attributed to one neuron, commonly through extracellular electrodes and spike isolation. It permits trial-resolved tests of stimulus tuning and interactions. Failure to evoke spikes with one stimulus alone does not exclude a modulatory input from that modality.
A study relating damage to altered or preserved performance. Damage may affect several neighboring areas and connections, and chronic compensation can change the relationship between a lesion and behavior. Deficits are evidence about a network's contribution under the tested conditions, not automatic localization of one abstract faculty.
Noninvasive stimulation in which a changing magnetic field induces electrical effects in neural tissue. Task-specific perturbation and control conditions can test causal hypotheses, but stimulation can affect connected regions and does not isolate a unique cellular mechanism.
Repeated magnetic stimulation used to perturb cortical activity or investigate changes after a stimulation intervention. The physiological effect and network spread depend on site, state and protocol; a nominally inhibitory manipulation does not guarantee a purely local reduction.
The study of neural mechanisms underlying cognition, using converging behavioral, physiological, imaging, computational and intervention evidence. A location associated with a task is not by itself an explanation of the task's computation.
Resources or strategies allowing performance to remain effective despite brain changes. A later clinical symptom onset can be compatible with reserve without implying a lower disease incidence or less underlying pathology.
Representations of the body used for sensation, action and judgments about body parts or ownership. These functions can dissociate, so the term need not denote one unified map.
A disturbed belief about ownership of a body part, for example attributing one’s limb to another person. This goes beyond inaccurate localization of a visual target.
Impaired acknowledgment or recognition of part of one’s body. It is not interchangeable with every form of visual neglect.
A pattern of neural activity that carries task-relevant information under a specified decoding or explanatory model. Anatomical co-location, similar mean activation and a shared representational code are different claims.
A representation whose relevant information is independent of a particular sensory or output modality. Shared mean activation across modalities is weaker evidence than generalisation of information about the represented content, with confounded stimuli and responses controlled.
Conceptual information accessible through different forms such as words, signs and pictures. Shared conceptual content can coexist with modality-specific input and output pathways; an anatomical overlap alone does not establish identical neural codes.
Consider two response vectors and over the same four measured locations, relative to a zero baseline. Both are positive everywhere and have mean two. Their centered vectors and satisfy . Hence identical positive regional means can accompany orthogonal patterns. This counterexample shows why overlapping regional activation does not imply a shared neural representation. It does not assert that real neural codes are necessarily orthogonal or that unsuccessful decoding proves their independence.
The relationship between a neural activity pattern and information represented by that pattern. Testing a shared neural code requires more than activation in the same anatomical territory: the informative pattern or mapping must generalize under an appropriate comparison.
Processes supporting language comprehension and production. Neural models must distinguish the transformations required by a task from correlated memory, decision and motor demands.
Identification of a word form under a specified input modality. Accuracy, speed and access to meaning are distinguishable measurements.
How often a word occurs in a defined language sample or learning history. Corpus frequency and an individual child's actual exposure need not coincide.
Identification of printed word forms. Familiar-word accuracy, unfamiliar-word decoding, fluent access and semantic interpretation should not be treated as interchangeable outcomes.
Acquisition of information about written forms and their relations. Retention of a particular spelling and generalisation to untrained combinations are different outcomes.
Variation in surrounding letters while a target mapping remains stable. A first-grade training experiment found transfer benefits from varied consonants around vowel mappings, motivating tests of how example distributions support abstraction.[ref]
Participants learn controlled written forms, pronunciations and sometimes meanings, followed by trained-item and transfer tests. Manipulating frequency and consistency can test sensitivity to input structure without uniquely identifying a learning algorithm.[ref]
The proposal that phonological recoding of unfamiliar written forms creates opportunities to acquire word-specific orthographic representations. Delayed discrimination from homophonic alternatives tests more than immediate pronunciation.[ref]
Efficient and appropriately coordinated reading, assessed through specified accuracy, speed and connected-text demands. Accurate isolated-word performance need not establish fluent passage reading.
Accessing a lexical item for comprehension or production. Naming additionally requires conceptual access and an output plan, so impaired naming need not identify a single representational deficit.
Acquired impairment of language following brain injury or disease. A diagnostic label can encompass multiple deficits and lesion patterns; behavioral components must be measured rather than inferred solely from the label.
Improvement in language function following acquired impairment. Residual tissue, network reorganisation, task practice and rehabilitation can contribute; recovery should be assessed across useful functions and time.
A clinical syndrome with progressive language impairment as the principal initial problem. Detailed profiles distinguish loss of word meaning, motor speech difficulty, agrammatism and phonological-memory demands; a syndrome label is not a unique anatomical lesion or molecular pathology.
A PPA pattern involving word-finding pauses and impaired repetition, with phonological-memory limitations often important. Sentence length and syntactic complexity should be varied independently when testing comprehension.
A PPA pattern prominently affecting word and conceptual meaning. Failure to understand a sentence can arise from missing word knowledge even if some grammatical operations remain available.
A PPA pattern characterised by effortful or agrammatic language, often with apraxia of speech. Motor speech and syntactic comprehension should be measured separately; neither is established merely by slow output.
A disproportionate naming difficulty for visually presented objects despite evidence of recognition. Nonverbal knowledge and naming through other input routes help distinguish it from visual agnosia.
A pattern of impaired semantic processing often investigated after stroke, in which regulating the use of knowledge can be especially difficult. The label does not imply that every patient has the same brain lesion or precisely the same mechanism.
Difficulty retrieving names. A naming failure can reflect lexical access, phonological output or degraded semantic knowledge, so naming alone does not diagnose failed object recognition.
An unintended substitution or alteration in speech, involving sounds or words. Fluent output can contain many such errors and therefore need not convey accurate information.
An aphasic presentation dominated by difficulty understanding language. This descriptive dimension does not identify one necessary brain lesion or exclude production deficits.
A fluent aphasic syndrome in which comprehension, repetition and informative speech can all be impaired. Acoustic–phonological analysis, semantic representations and semantic control must be distinguished; receptive difficulty does not imply preserved production.[ref]
An aphasic pattern featuring disproportionately impaired repetition relative to some other language abilities. It can involve dorsal temporoparietal network dysfunction and is not proof of one isolated tract lesion in every case.
Temporal and temporofrontal systems supporting transformations from speech signals toward lexical and conceptual interpretation. Models differ on the precise anatomy and levels of representation included; bilateral speech analysis is compatible with stronger lateralization of some higher-level operations.
A family of dorsal connections supporting transformations between auditory/phonological information and frontal articulatory systems. In influential dual-stream models it is strongly left-biased, while remaining interactive with other systems rather than an isolated serial cable.
A task in which a person selects a picture corresponding to a sentence. Reversing thematic roles while preserving the pictured participants can test syntactic interpretation, but visual analysis and response selection remain additional requirements.
A disorder of speech fluency involving disruptions such as repetitions, prolongations or blocks. Proposed timing and motor-control mechanisms must account for variability across conditions and development; brain differences measured after onset can include consequences or compensation.
Impaired planning or programming of the coordinated movements needed for speech, distinguished from a primary muscle weakness or a deficit in grammatical knowledge. It can arise in developmental or acquired conditions.
A developmental motor-speech condition affecting the planning or programming of speech movements. Language skills and nonverbal cognition require separate assessment rather than being inferred from the severity of speech output difficulty.
A disproportionate difficulty recognizing spoken language despite better access through other routes. Hearing, phonological discrimination, reading and nonverbal semantic performance must be compared before attributing failure to a speech-input mechanism.
Inferring a particular mental process from a neural response associated with it. The inference is weak when the same response occurs during many other processes; task contrasts, functional selectivity and intervention evidence can constrain alternatives.
Retention and later use of information acquired through experience. Behavioural tests distinguish retention from immediate sensory responses and continuing access to external cues.
A persistent physical change or ensemble associated with retaining information from experience. Reactivation, necessity for natural recall and sufficiency under artificial stimulation are distinct criteria; no one of them alone establishes a complete account of subjective recollection.
Memory for relationships among items, places, contexts or events. Flexible use of a learned relation in a new query is more informative about relational structure than repetition of a practiced stimulus–response choice.
An account assigning the hippocampus a role in organizing related experiences and permitting their flexible expression. The proposed computation can operate on spatial and nonspatial information. It is a theory whose parts require tests, rather than a synonym for every task affected by hippocampal damage.[ref]
Information about an event's position in an evolving sequence or internal state. Changes in neural activity over time can supply a temporal context, but time covaries with behavior, expectation and other variables that require experimental controls.
Retention of the relative order of events. It need not involve knowing a calendar date or measuring elapsed duration. Tests should distinguish an ordered relation from judgments based only on the recency or strength of individual item traces.
Retention of behaviorally testable features of an event, often including integrated content, place and temporal information, without claiming to have established conscious reliving. The label separates evidence about a task from evidence about autonoetic consciousness.
Retention of which event occurred at which place and at which time or temporal position. Separate success on content, location and timing tests does not establish that their particular conjunction was retained; episodic binding is a stronger requirement.
The processes through which people retain and use information. Retention interval, material, awareness and response demands must be distinguished; they do not define one-to-one anatomical stores.
A human memory architecture in which new information must pass through a short-term store to reach a long-term store. A strong version is challenged if the specific short-term mechanism claimed to be obligatory is severely impaired while relevant long-term learning remains relatively preserved. Residual or alternative routes must be considered.
Retention beyond immediate temporary maintenance, including declarative and procedural forms. A person can have severe new declarative learning difficulty while retaining other enduring learning.
Retention over a brief interval. Immediate span is one assay, not a complete measure of all representations that can influence immediate behavior.
Temporary retention of verbal material. Auditory presentation, phonological coding, rehearsal and output requirements can contribute differently to a measured span.
A task measuring the sequence length of digits that can be reproduced under specified conditions. Forward repetition and backward manipulation are different demands; modality and presentation rate also matter.
A change in processing an event because its representation has been activated before the event occurs. The direction and mechanism of the effect depend on the task and model.
In the SOP model, an associated cue or context activates elements of an expected event into secondary activation before that event occurs. It is conceptually distinct from residual activation caused by recent presentation of the event itself.
In the SOP model, a recent stimulus presentation leaves elements in secondary activation, making fewer elements available for primary activation on repetition. This supplies a transient response-decrement mechanism without requiring a new association.
A discrepancy between an associatively expected event and the event that occurs. Novel combinations of familiar stimuli can reveal it without introducing an entirely novel stimulus.
An organized body of prior knowledge that can shape encoding, interpretation and integration of new information. In flavour–place experiments, prior structured learning allowed rapid incorporation and consolidation of compatible new associations.[ref]
A framework combining rapid learning with relatively separated episodic representations and slower learning with overlapping representations that extract shared structure. Hippocampal reinstatement supplies experience for interleaved cortical learning. The computational aim is to retain specific events while integrating new knowledge without destructive interference, not simply to duplicate short- and long-duration stores.[ref]
Processes that stabilize or reorganize information after acquisition. Synaptic consolidation concerns cellular changes, whereas systems consolidation concerns changing interactions among brain regions. Better later performance need not mean a literal transfer of a complete memory between two stores.
Time-dependent reorganization of the neural circuits supporting retention and retrieval, often involving interactions between the hippocampus and cerebral cortex. Whether a particular detailed episode becomes independent of the hippocampus is a further empirical question.
An account in which reactivation of recently encoded representations during offline states modifies distributed neural circuits. Coordination of hippocampal sharp-wave ripples, sleep spindles and cortical sleep slow oscillations provides a candidate timing mechanism. Reactivation, strengthened behaviour and permanent cortical storage are distinct claims requiring different evidence.
Stabilization involving cellular and synaptic plasticity mechanisms after learning, rather than only continued sensory input or working-memory rehearsal.
Experience-dependent retention expressed in performance of a skill or procedure, which need not be accompanied by explicit recollection of training.
A motor-learning task in which a participant tries to keep a stylus on a moving target. Practice-related improvement and retention across sessions can assess skill learning separately from explicit recollection of the practice.
Memory accessible to flexible report or use concerning facts and events. It includes semantic memory and episodic memory; it is distinguished from preserved performance-based learning such as procedural memory.
Articles were limited to the first 100 out of 995 total.

Ancestors (2)

  1. Biology
  2. Home

Incoming links (12)

View article source

Discussion (0) New discussion

There are no discussions about this article yet.

Articles by others on the same topic (1)

Neuroscience by Ciro Santilli 40 Updated 2025-07-16
Read the full article
See all articles in the same topic Create my own version