Studies show that you can use your heart rate signals to tell if randomly selected stimuli would either be pleasant or otherwise. This is not a new thing actually as the heart has for a long time been associated with many things. Including love!
Years ago, Bierman and Radin (1997) came up with an effective method of measuring how human beings respond unconsciously to future events. In the essence, such unconscious physiological response would be a separation of precognition that scientists usually call ‘presentiment’. If you don’t know, presentiment is simply a term used to refer to a vague feeling or sense of pleasant or unpleasant thing that is about to happen without mindful awareness of a particular event.
Researchers usually employ unconscious physiological measures because studies suggest that precognitive perception, such as the most sensory information, do not often reach the level of our conscious awareness.
First, pleasant stimuli are presented to the participant followed by presentation of unpleasant stimuli. The pleasant stimuli usually contain calm, attractive pictures while unpleasant stimuli usually contain arousal or violent pictures with blood or erotic content. Experiments have clearly shown that there is always a different electro dermal activity response that manifests after a person is exposed to calm and arousing stimuli.
Currently, the physiological measures researchers use when representing their research include skin conductance EDA, both SCL and SCR (Radin, 2004), fMRI (Bierman & Scholte, 2002) and EEG, heart rate (McCraty, Atkinson & Bradley, 2004a; McDonough, Don & Warren, 2002. In fact, all these physiological measures have demonstrated a presentiment effect in at least one study. The conclusion of these experiments clearly shows that presentiment is usually distributed throughout the entire body (McCraty et al., 2004b).
Before pleasant and unpleasant sound is presented to you, there is usually no differential anticipatory heart rate signals. After presentation of the sounds, there would be a differential anticipatory heart rate signals that will occur. Depending on whether the sound presented is pleasant or unpleasant, your heart rate will definitely increase or decrease. Using the difference in your heart rate keenly, you will be able to predict the future events. While this usually happens unconsciously, it remains of no use unless you become aware of it.