Dear Babita, 

I do not know if understand your question correctly but e.g. watching a horror film affects your blood pressure.

Dear Béatrice Marianne,

Thank you for the reply. I want to know is there any research paper available on  the effect of blood pressure on short-time perception in human

Here is one source: 

https://books.google.fi/books?id=hFN-AgAAQBAJ&pg=PA193&lpg=PA193&dq=blood+pressure+on+short-time+perception&source=bl&ots=zxTRO-u-SZ&sig=WxwHxTDhE2_pR8rh1j6d7YTfhNo&hl=sv&sa=X&ved=0ahUKEwjA8uPviYrOAhVHBiwKHQKYANYQ6AEIGjAA#v=onepage&q=blood%20pressure%20on%20short-time%20perception&f=false

Dear Béatrice Marianne,

Thank you for the reply. It is really informative.

Regards,

I don't think there have been studies of immediate or very short term effects of BP lowering on cognition 

Thank you Sir for the reply.

Regards,