Agraphic acalculia is an acquired problem in which a person, who once wrote numbers and solved sums without effort, suddenly cannot set figures down on paper ...

Alexic acalculia is a secondary form of acalculia in which the main obstacle to doing arithmetic is an acquired reading problem (alexia). The person can still ...

Aphasic acalculia is an **acquired problem with doing math that happens **because a person also has aphasia—an impairment of spoken or written language after ...

Frontal-executive anarithmetia (sometimes called dysexecutive or frontal acalculia) is a loss or severe reduction of a person’s everyday calculating skills ...

Anarithmetia—also called primary acalculia—is an acquired loss of the very idea of number and of the rules that let us add, subtract, multiply, or divide. ...

Acalculia is an acquired loss of the ability to understand numbers or carry out even the simplest calculations after the brain has been injured by disease or ...

Dementia-related agraphia is a progressive loss of the ability to write that arises because the brain changes that cause dementia also disrupt the complex ...

Cerebellar agraphia is a loss or severe disturbance of handwriting that happens after damage or disease in the cerebellum—the small, densely folded “little ...

Thalamic agraphia is a specific kind of writing problem that appears after damage to the thalamus—the deep, egg-shaped relay station that sits in the centre of ...

Apraxic Agraphia—also called motor-planning agraphia—is a writing disorder that happens when the brain can no longer organize the precise, sequential finger ...

Deep agraphia is a central writing disorder that sits at the “deep” end of the agraphia spectrum: people can still hold a pen, but when they try to spell they ...

Lexical agraphia—more often called surface agraphia—is an acquired writing disorder in which a person can still spell regular, phonetically predictable words ( ...

Agraphia is the acquired loss or breakdown of the ability to write. “Phonological agraphia” is one special, clinically recognised subtype in which the link ...

Agraphia is the acquired inability or severe difficulty to write meaningful words, sentences, or numbers after previously learning how to do so. It usually ...

Pure—or isolated—agraphia is an acquired loss of the previously normal ability to write without parallel problems in reading, speaking, or motor strength. In ...

Agraphia is a neurological language disorder in which a person loses the ability to write words, sentences, or even single letters that they once knew how to ...