The Pilgrims suffered a 5-1 home defeat at the hands of Peterborough last Saturday.
Today fellow high-fliers Pompey claimed a comfortable 3-0 triumph to strengthen their own promotion challenge.
Ronan Curtis scored twice and created the other in a man-of-the-match display, with Jamal Lowe also netting.
And Thompson, who appeared as a substitute for the injured Anton Walkes, said the Blues sensed vulnerability.
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The right-back said: '˜We set our stall out early, were dominant from the start.
'˜You look at a Plymouth team coming off the back of a 5-1 defeat last weekend and confidence is saturated a little bit '“ you could see that as soon as we scored the second goal.
'˜I thought dealt with the atmosphere and were cool and collected, it was a good performance.
'˜They had a 10-minute period just before half-time when they got their tails up and we took offÂ Hawks (Oli Hawkins)Â and it slowed the tempo of the game, so they got back into it.
'˜That is why it was important toÂ start the second half strongly '“ and I thought the boys did that.
'˜It was a matter of then controlling it and takingÂ our opportunities, which we did.'