Dormir pouco pode prejudicar a memória

[{"selector":"#anim-5ca2d03d-8e54-45e9-90e2-e6fc45ffe4d9","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3794f435-95d6-4ad1-9e91-c5c754e5bcc7","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-b7c9386d-6728-465d-b0f0-e1df0e6f73c7","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-7c64270b-d100-4a03-9b08-45f99e3f1d98","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] UNSPLASH

[{"selector":"#anim-0c65e240-c626-4023-9214-b61f5674c115","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-083a7367-465d-4909-afac-fb5d2a5c6549","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-310e5c12-49ca-45dd-8e6b-16cf79757fff","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-02590870-9b9e-46d9-9e8e-c05f301b9d32","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-45b77be8-57da-4167-9ae7-e49218ff8a09 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(34.194335841591844%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Diversas pesquisas já relacionaram a qualidade do sono a um melhor estado de saúde geral. Agora, um novo estudo sugere que a memória de longo prazo pode ser afetada pela privação de sono UNSPLASH

[{"selector":"#anim-c9883229-bb56-4530-ad20-bb0f724730cc","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-5720888c-2db6-49d6-91ec-cc8c0ef2775b","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-74f76681-fe34-4d27-8b48-fa9f10293153","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-36f2e4fb-3c5a-4d24-9739-c371b4653330","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-223d9675-aa53-43da-88c6-de43ccc88fc0 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(29.080200040196523%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Além disso, mesmo uma boa noite de sono após uma noite mal dormida não é o suficiente para corrigir o sinal cerebral relacionado à memória. A descoberta foi publicada na revista científica Nature UNSPLASH

[{"selector":"#anim-e8554107-48a1-441e-9ac8-b996eee8eb6e","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-fe4292b9-04e1-426e-8b29-885cea6f13c1","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-d1c79c6a-faf4-4b36-b3d0-0af56766b82f","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-643d06dc-57ff-411a-9b30-63d6e62a90fa","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Os neurônios do cérebro estão interconectados e, geralmente, disparam juntos em padrões repetitivos — um deles é a ondulação de ondas agudas UNSPLASH

[{"selector":"#anim-9e4ea954-6954-4382-9b4f-e0770188d7b0","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b8595bb7-0e0e-48e9-983b-b95b6902f16d","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-65882d8a-df7e-4ff5-84e7-9b07b7322d2d","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-ca51bb8b-7308-4ed8-85f6-2539b5d90d37","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-ddbbf265-4494-4f73-8d67-d41677f306d0 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(34.49900784015581%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Nela, um grande grupo de neurônios dispara de forma sincronizada, e isso acontece em uma área do cérebro chamada hipocampo, fundamental para a formação da memória UNSPLASH

[{"selector":"#anim-17d85986-560d-4472-9982-bb2ed8762028","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-00cfec2f-3a3b-41f4-92ba-a5d7dfc306c3","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-8e4c496f-5e2c-4805-9f20-66d65e06749e","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-06bddf10-f694-43af-bed7-9f87e1eee393","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-4896c0f1-3285-4453-ad75-150f63c9010a [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(41.79046629780789%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Além disso, evidências científicas mostraram que, possivelmente, esses padrões facilitem a comunicação com o neocórtex, local onde as memórias de longo prazo são armazenadas UNSPLASH

[{"selector":"#anim-6e6ec1b7-0fe6-4f59-94ba-530694c5a599","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-264aa129-7a60-4bcb-8e25-55f3d3777f27","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-8e3a8a37-0ad6-4022-a3a3-ab30689932f8","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-d6b51d54-db5f-43df-b8df-008405111f4b","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-f9b472bc-713b-40b8-bd8c-39e61860cc4a [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(7.812499744007886%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Pesquisas anteriores já tinham notado que essas ondulações de ondas agudas tendem a ocorrer durante o sono profundo e, também, durante a vigília (quando estamos acordados) UNSPLASH

[{"selector":"#anim-e8038601-2c68-4c88-995a-8dd2b838aaa5","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-07b22139-6a20-414d-9d3f-832db6185cb2","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-066143de-a036-42a8-8a7e-e1808f1676a9","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2fb865bd-ae3a-463d-b73d-79e9d12e4f64","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-c8cdf267-32cf-42ec-b02b-9476eeb765a3 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(18.802182543421747%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Quando as ondulações acontecem durante o sono, elas podem ser importantes para transformar o conhecimento de curto prazo em memórias de longo prazo UNSPLASH

[{"selector":"#anim-cb6f31df-1757-4c7b-a057-e9312a641402","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-b050f492-9fd9-4248-8c52-967a15aae550","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-1c82cc7a-d803-4ca3-bb65-b4caad1b095c","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-49951589-b693-4e52-9c6f-87154e65d59e","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-e6fb34dd-66dc-403f-b9d2-14ee7e6e0c92 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-57.81249974400788%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] A partir disso, e para entender melhor como a privação de sono pode afetar a memória, os pesquisadores decidiram registrar a atividade do hipocampo em sete ratos enquanto eles exploravam labirintos ao longo de várias semanas UNSPLASH

[{"selector":"#anim-b0cc20cc-73a4-4b68-99ce-8fcfc2d2c16c","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-27e97e91-5e4a-4ce6-bc6c-9d7497370d52","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-e9a6047b-38a8-4b0d-9f30-7bf9c5cd9567","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-e62017d5-2a27-48f6-a1ff-a2d745e09023","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-56d1a170-df1e-49b1-82fe-8431934decf9 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(-28.657226432992882%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Alguns desses animais tiveram seus sonos perturbados regularmente por intervenções dos cientistas, enquanto outros puderam dormir à vontade UNSPLASH

[{"selector":"#anim-275d7f48-df32-4942-8bec-4373e94b7e17","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-145445c8-9c32-4c4f-9dd4-e433f8d3cc1a","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-9c435607-f12e-40ff-8fbd-89c2c66655e3","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-a9ed92f0-3bcc-4347-9f67-eff8c170e1b6","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] Segundo os pesquisadores, os ratos acordados repetidamente tiveram níveis semelhantes e, até mesmo, mais elevados de atividade de ondas agudas do que os roedores que dormiram normalmente UNSPLASH

[{"selector":"#anim-560703b0-7542-49c7-8f9f-c9be0f3c572c","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-32eb5ffd-aac0-4a27-8beb-09d7b471a564","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-1f201472-4356-4937-b19b-5f8b37102732","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-2559ffa1-4931-4816-9e3a-61e77b891bb8","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-63126ed8-4989-430d-860b-50969c4edb65 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(12.514648210040342%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Porém, essas ondulações foram mais fracas e menos organizadas, o que indica uma diminuição na repetição dos padrões de disparo dos neurônios UNSPLASH

[{"selector":"#anim-8a436ca9-ddd5-4938-924e-6e834bd7c3bd","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-9d28d181-4a54-4b0f-a70f-88f36b54931c","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-bef86c63-da6e-4e86-ad90-6cf159da6f3c","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-e57f59bb-0d6c-4f4c-99cb-4b3bc34aeda2","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-438b9442-3833-47e9-83ac-1880bf02773b [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(31.249999886225726%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Em entrevista ao site da revista Nature, especialistas afirmam que essa descoberta poderia explicar por que estudar muito antes de uma prova ou passar a noite inteira acordado estudando pode ser uma estratégia ineficaz UNSPLASH

[{"selector":"#anim-805efbdb-f507-40d6-b1b4-366d0ad14455","keyframes":{"opacity":[0,1]},"delay":0,"duration":1500,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-80f22013-b538-4d48-a273-d2325cc9b94c","keyframes":{"opacity":[0,1]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] [{"selector":"#anim-0fd4595c-c083-4955-a7e1-f1ee98d58e7d","keyframes":{"transform":["scale(0.3333333333333333)","scale(1)"]},"delay":0,"duration":500,"easing":"cubic-bezier(.3,0,.55,1)","fill":"forwards"}] [{"selector":"#anim-e17a269e-4366-4f60-9e5c-242d0ac51c62","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-3e33d9aa-89ec-4a0a-829b-66f1b97d3264 [data-leaf-element=\"true\"]","keyframes":{"transform":["translate3d(7.856445056774541%, 0, 0)","translate3d(0%, 0, 0)"]},"delay":0,"duration":2000,"easing":"cubic-bezier(.3,0,.55,1)","fill":"both"}] Além disso, para György Buzsáki, neurocientista, que tem pesquisado estas explosões desde a década de 1980, a interrupção do sono pode ser usada para evitar que memórias traumáticas sejam armazenadas a longo prazo UNSPLASH

CNNBRASIL.COM.BR

[{"selector":"#anim-e863504e-3453-4b93-9516-172b8e96287d","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-d7755e4f-128a-4281-a05f-26f6a5646891","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.4, 0.4, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7da11857-e8c5-4a16-a6cf-c9827b4c0214","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-579c6d26-20f3-4bde-ba23-2d0729fa0d59","keyframes":{"transform":["translate3d(0px, 2132.63615%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8422e6a2-840c-4e68-8fc4-cb828663b004","keyframes":{"opacity":[0,1]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-8ffed676-c6ac-40d3-9a76-bf785752b0f7","keyframes":{"transform":["translate3d(-117.84387%, 0px, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":600,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-7dd53028-13f1-4ae3-adde-61d67b8b2880","keyframes":{"opacity":[0,1]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] [{"selector":"#anim-34619208-26d9-4369-8b99-af56991e04b5","keyframes":{"transform":["translate3d(0px, 1223.93157%, 0)","translate3d(0px, 0px, 0)"]},"delay":0,"duration":1000,"easing":"cubic-bezier(0.2, 0.6, 0.0, 1)","fill":"both"}] unsplash leia mais em Arraste para cima