{"id":5433,"date":"2025-12-09T12:39:23","date_gmt":"2025-12-09T17:39:23","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/?post_type=chapter&#038;p=5433"},"modified":"2025-12-09T21:47:41","modified_gmt":"2025-12-10T02:47:41","slug":"hemispheric-specialization-lateralization-of-the-cerebrum","status":"web-only","type":"chapter","link":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/chapter\/hemispheric-specialization-lateralization-of-the-cerebrum\/","title":{"raw":"11p3  Hemispheric Specialization (Lateralization) of the Cerebrum","rendered":"11p3  Hemispheric Specialization (Lateralization) of the Cerebrum"},"content":{"raw":"<h1><strong>Overview<\/strong><\/h1>\r\n<ul>\r\n \t<li>The\u00a0<strong>cerebrum<\/strong>\u00a0has\u00a0<strong>two hemispheres<\/strong>:\r\n<ul>\r\n \t<li><strong>Left hemisphere<\/strong><\/li>\r\n \t<li><strong>Right hemisphere<\/strong><\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<strong>Functional Asymmetry<\/strong>\r\n<ul>\r\n \t<li>While many functions are shared, certain\u00a0<strong>abilities<\/strong>\u00a0are predominantly\u00a0<strong>localized<\/strong>\u00a0to one hemisphere \u2014 a phenomenon called\u00a0<strong>lateralization<\/strong>.<\/li>\r\n<\/ul>\r\n<h1><strong>Left Hemisphere Functions (for Majority of People)<\/strong><\/h1>\r\n<ul>\r\n \t<li><strong>Logical thinking<\/strong>\u00a0and\u00a0<strong>mathematical skills<\/strong>.<\/li>\r\n \t<li><strong>Language skills<\/strong>:\r\n<ul>\r\n \t<li><strong>Broca\u2019s area<\/strong>: Speech production.<\/li>\r\n \t<li><strong>Wernicke\u2019s area<\/strong>: Language comprehension (interprets spoken and written language).<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Likelihood<\/strong>:\r\n<ul>\r\n \t<li>In\u00a0<strong>90% of people<\/strong>, both Broca\u2019s and Wernicke\u2019s areas are located in the\u00a0<strong>left hemisphere<\/strong>.<\/li>\r\n \t<li>In the remaining\u00a0<strong>10%<\/strong>, these areas are in the\u00a0<strong>right hemisphere<\/strong>.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Implication of damage<\/strong>:\r\n<ul>\r\n \t<li>Loss of\u00a0<strong>speech production<\/strong>\u00a0or\u00a0<strong>language comprehension<\/strong>\u00a0abilities (e.g.,\u00a0<strong>aphasia<\/strong>).<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n&nbsp;\r\n<ul>\r\n \t<li>Memory Trick: <strong><span style=\"text-decoration: underline\">L<\/span>s<\/strong> - <strong><span style=\"text-decoration: underline\">L<\/span>eft Hemisphere =<\/strong>\u00a0<strong><span style=\"text-decoration: underline\">L<\/span>ogic, <span style=\"text-decoration: underline\">L<\/span>anguage<\/strong><\/li>\r\n<\/ul>\r\n<h1><strong>Right Hemisphere Functions (for Majority of People)<\/strong><\/h1>\r\n<ul>\r\n \t<li><strong>Music<\/strong>\u00a0and\u00a0<strong>art appreciation<\/strong>.<\/li>\r\n \t<li><strong>Behavioral monitoring<\/strong>\u00a0and\u00a0<strong>social cognition<\/strong>:\r\n<ul>\r\n \t<li>Recognizing\u00a0<strong>sarcasm<\/strong>,\u00a0<strong>humor<\/strong>, and emotional expressions.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Spatial orientation<\/strong>:\r\n<ul>\r\n \t<li>Recognizing\u00a0<strong>relationships<\/strong>\u00a0between objects and people.<\/li>\r\n \t<li><strong>Self-care<\/strong>\u00a0and\u00a0<strong>body awareness<\/strong>.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Implication of damage<\/strong>:\r\n<ul>\r\n \t<li>Deficits in\u00a0<strong>music\/art perception<\/strong>.<\/li>\r\n \t<li>Impaired\u00a0<strong>behavioral interpretation<\/strong>.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n<h1><strong>Summary<\/strong><\/h1>\r\n<ul>\r\n \t<li>The\u00a0<strong>left hemisphere<\/strong>\u00a0is dominant for\u00a0<strong>analytical<\/strong>\u00a0and\u00a0<strong>linguistic<\/strong>\u00a0functions in most people.<\/li>\r\n \t<li>The\u00a0<strong>right hemisphere<\/strong>\u00a0specializes in\u00a0<strong>emotional<\/strong>,\u00a0<strong>artistic<\/strong>, and\u00a0<strong>spatial<\/strong>\u00a0functions.<\/li>\r\n \t<li>Damage to these areas leads to characteristic deficits in communication, perception, or behavior understanding.<\/li>\r\n \t<li><strong>Key Brain Regions<\/strong>\r\n<ul>\r\n \t<li><strong>Broca\u2019s Area<\/strong>:\r\n<ul>\r\n \t<li>Involved in\u00a0<strong>speech production<\/strong>.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li><strong>Wernicke\u2019s Area<\/strong>:\r\n<ul>\r\n \t<li>Involved in\u00a0<strong>language comprehension<\/strong>.<\/li>\r\n<\/ul>\r\n<\/li>\r\n \t<li>Both are\u00a0<strong>language centers<\/strong>\u00a0and located in the\u00a0<strong>left hemisphere<\/strong>\u00a0in most people.<\/li>\r\n<\/ul>\r\n<h1><\/h1>\r\n<\/li>\r\n<\/ul>","rendered":"<h1><strong>Overview<\/strong><\/h1>\n<ul>\n<li>The\u00a0<strong>cerebrum<\/strong>\u00a0has\u00a0<strong>two hemispheres<\/strong>:\n<ul>\n<li><strong>Left hemisphere<\/strong><\/li>\n<li><strong>Right hemisphere<\/strong><\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><strong>Functional Asymmetry<\/strong><\/p>\n<ul>\n<li>While many functions are shared, certain\u00a0<strong>abilities<\/strong>\u00a0are predominantly\u00a0<strong>localized<\/strong>\u00a0to one hemisphere \u2014 a phenomenon called\u00a0<strong>lateralization<\/strong>.<\/li>\n<\/ul>\n<h1><strong>Left Hemisphere Functions (for Majority of People)<\/strong><\/h1>\n<ul>\n<li><strong>Logical thinking<\/strong>\u00a0and\u00a0<strong>mathematical skills<\/strong>.<\/li>\n<li><strong>Language skills<\/strong>:\n<ul>\n<li><strong>Broca\u2019s area<\/strong>: Speech production.<\/li>\n<li><strong>Wernicke\u2019s area<\/strong>: Language comprehension (interprets spoken and written language).<\/li>\n<\/ul>\n<\/li>\n<li><strong>Likelihood<\/strong>:\n<ul>\n<li>In\u00a0<strong>90% of people<\/strong>, both Broca\u2019s and Wernicke\u2019s areas are located in the\u00a0<strong>left hemisphere<\/strong>.<\/li>\n<li>In the remaining\u00a0<strong>10%<\/strong>, these areas are in the\u00a0<strong>right hemisphere<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Implication of damage<\/strong>:\n<ul>\n<li>Loss of\u00a0<strong>speech production<\/strong>\u00a0or\u00a0<strong>language comprehension<\/strong>\u00a0abilities (e.g.,\u00a0<strong>aphasia<\/strong>).<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul>\n<li>Memory Trick: <strong><span style=\"text-decoration: underline\">L<\/span>s<\/strong> &#8211; <strong><span style=\"text-decoration: underline\">L<\/span>eft Hemisphere =<\/strong>\u00a0<strong><span style=\"text-decoration: underline\">L<\/span>ogic, <span style=\"text-decoration: underline\">L<\/span>anguage<\/strong><\/li>\n<\/ul>\n<h1><strong>Right Hemisphere Functions (for Majority of People)<\/strong><\/h1>\n<ul>\n<li><strong>Music<\/strong>\u00a0and\u00a0<strong>art appreciation<\/strong>.<\/li>\n<li><strong>Behavioral monitoring<\/strong>\u00a0and\u00a0<strong>social cognition<\/strong>:\n<ul>\n<li>Recognizing\u00a0<strong>sarcasm<\/strong>,\u00a0<strong>humor<\/strong>, and emotional expressions.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Spatial orientation<\/strong>:\n<ul>\n<li>Recognizing\u00a0<strong>relationships<\/strong>\u00a0between objects and people.<\/li>\n<li><strong>Self-care<\/strong>\u00a0and\u00a0<strong>body awareness<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Implication of damage<\/strong>:\n<ul>\n<li>Deficits in\u00a0<strong>music\/art perception<\/strong>.<\/li>\n<li>Impaired\u00a0<strong>behavioral interpretation<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h1><strong>Summary<\/strong><\/h1>\n<ul>\n<li>The\u00a0<strong>left hemisphere<\/strong>\u00a0is dominant for\u00a0<strong>analytical<\/strong>\u00a0and\u00a0<strong>linguistic<\/strong>\u00a0functions in most people.<\/li>\n<li>The\u00a0<strong>right hemisphere<\/strong>\u00a0specializes in\u00a0<strong>emotional<\/strong>,\u00a0<strong>artistic<\/strong>, and\u00a0<strong>spatial<\/strong>\u00a0functions.<\/li>\n<li>Damage to these areas leads to characteristic deficits in communication, perception, or behavior understanding.<\/li>\n<li><strong>Key Brain Regions<\/strong>\n<ul>\n<li><strong>Broca\u2019s Area<\/strong>:\n<ul>\n<li>Involved in\u00a0<strong>speech production<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Wernicke\u2019s Area<\/strong>:\n<ul>\n<li>Involved in\u00a0<strong>language comprehension<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li>Both are\u00a0<strong>language centers<\/strong>\u00a0and located in the\u00a0<strong>left hemisphere<\/strong>\u00a0in most people.<\/li>\n<\/ul>\n<h1><\/h1>\n<\/li>\n<\/ul>\n","protected":false},"author":1370,"menu_order":10,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":["zoe-soon"],"pb_section_license":"cc-by-nc-sa"},"chapter-type":[],"contributor":[60],"license":[57],"class_list":["post-5433","chapter","type-chapter","status-web-only","hentry","contributor-zoe-soon","license-cc-by-nc-sa"],"part":76,"_links":{"self":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters\/5433","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters"}],"about":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/types\/chapter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/users\/1370"}],"version-history":[{"count":4,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters\/5433\/revisions"}],"predecessor-version":[{"id":5539,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters\/5433\/revisions\/5539"}],"part":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/parts\/76"}],"metadata":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapters\/5433\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/media?parent=5433"}],"wp:term":[{"taxonomy":"chapter-type","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/pressbooks\/v2\/chapter-type?post=5433"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/contributor?post=5433"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/pathophysiology\/wp-json\/wp\/v2\/license?post=5433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}