Very Erratic Trackpad Behavior - Heat?

The trackpad on my one-year-old MBPro has started exhibiting extremely erratic and intermittent behavior:
• Taps react as control-clicks
• Cursor jumps and becomes impossible to control
• Drags and scrolls behave unpredictably
The trackpad becomes impossible to use. Eventually, as now, everything returns to normal. I'm very experienced in the proper use of the trackpad, and am familiar with the 'phantom fingers' phenomenon, so no need to advise against keeping extra fingers and hands away from the trackpad.
This behavior has even occurred when standing well away from the computer: after fighting to control the cursor and restart the computer via the Apple menu, I left the room and returned to see a contextual menu of the Activity Monitor (set to auto-launch at restart) being self-activated.
I'm starting to guess that this is related to heat issues. In support of this theory, the following:
- This behavior was first seen a few months ago when I traveled to the south of France where it was quite warm, and the computer had been playing video for some time. The computer was indeed rather warm.
- Now it's summertime and the ambient temperature is warmer (though here in the Netherlands, it's not exactly tropical). The last two occurrences of this behavior (yesterday and today) have been hot sunny days. After allowing the computer to cool, the trackpad behaves as normal.
Others have reported strange trackpad behavior, but they seem to believe it is caused by defective or damaged hardware, or else user-error. It is often suggested they check their trackpad System Preferences. This post which supports my theory that this is indeed heat-related problem, also remarks that the problem is more likely when the battery is charging.
Can anyone offer advice, explanation or supporting arguments?
Thanks

Try using your laptop without the battery installed (ie remove the battery and run the laptop from the mains supply only), and see if that cures the problem.
If it does, then you have a warped battery casing, and will need to replace the battery.
The battery sits directly over the trackpad circuitry, so that if the battery casing warps, it presses against the trackpad circuitry and causes it to act as though you have pressed it.
If that doesn't cure the problem, then you probably need to replace the trackpad, itself.

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