stri·​a·​tum | \ strī-ˈā-təm How to pronounce striatum (audio) \
plural striata\ strī-​ˈā-​tə How to pronounce striatum (audio) \

Definition of striatum

: corpus striatum especially : the part of the corpus striatum consisting of the caudate nucleus and putamen

Examples of striatum in a Sentence

Recent Examples on the Web In one study, for instance, MRIs show an area of the brain (ventral striatum), that tracks reward satisfaction, is significantly more activated in adolescents than either in children or adults. Gerald Posner, Forbes, 14 Oct. 2021 The disk, a neurostimulator, then transmits a signal along a separate wire to the striatum to tamp down feelings of sadness and depression. Gary Stix, Scientific American, 4 Oct. 2021 In Sarah's case, the circuit ran from her amygdala, an area known to control fear and other strong emotions, to her ventral striatum, which is involved in decision-making. Karen Weintraub, USA TODAY, 4 Oct. 2021 Duchenne smiles indicate intensity rather than genuineness, and stuttering is linked to astrocytes in the striatum. Rafil Kroll-zaidi, Harper's Magazine, 27 Apr. 2021 The process involves the striatum, a dopaminergic reward center that drugs like cocaine and amphetamines exploit. Bill Hardekopf, Forbes, 19 Mar. 2021 Further, prediction errors, which are what seemed to determine patients' abnormal actions, are primarily processed in the ventral striatum. Simon Makin, Scientific American, 4 Oct. 2017 Researchers already know connections between parts of the frontal cortex, which orchestrates higher functions like planning and problem-solving, and deeper areas, including a region called the ventral striatum, are abnormal in OCD. Simon Makin, Scientific American, 4 Oct. 2017 In people with anorexia, both during and after hospitalization, MRI scans showed the region of the brain associated with selecting foods was the dorsal striatum, which is key to forming habits. Jennifer Couzin-frankel, Science | AAAS, 9 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'striatum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of striatum

1882, in the meaning defined above

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Time Traveler for striatum

Time Traveler

The first known use of striatum was in 1882

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Last Updated

17 Nov 2021

Cite this Entry

“Striatum.” Dictionary, Merriam-Webster, Accessed 1 Dec. 2021.

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More Definitions for striatum


stri·​a·​tum | \ strī-ˈāt-əm How to pronounce striatum (audio) \
plural striata\ -​ˈāt-​ə How to pronounce striatum (audio) \

Medical Definition of striatum


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