Dreams Explored: a Look Into the Science of Our Subconscious

Dreams Explored: a Look Into the Science of Our Subconscious.

Dreams remain one of the most fascinating and, largely, unknown aspects of sleep. Since the late 19th century, when Sigmund Freud first highlighted the potential significance of dreams, researchers have been trying to unravel the neuroscience and psychology behind them. Even the most fundamental question of all, “Why do we dream?” remains a topic of considerable debate.

But What Are Dreams?

Most of us have experienced dreams. Some people report dreaming vividly every night and remembering every detail while others wake up every morning with no recollection of what went on in their heads while they slept. Dreams are defined as mental experiences, usually in the first-person perspective, that occur during sleep and are characterised by a unique combination of sensory perceptions, emotions, feelings, and thoughts. Everybody dreams, even if you are unable to remember them upon waking. Although many people believe that dreaming occurs solely during rapid eye movement (REM) stages of sleep, researchers have found that dreaming occurs during non-REM stages as well, although the content of the dreams tends to be different, with REM dreams being more vivid and emotive than non-REM dreams. Interestingly, some people dream in colour while others dream in black and white and some research has shown that people who are blind tend to have more dream components related to sound, taste and smell.

Why Do We Dream?

Maybe you’ve heard people say dreaming your teeth are falling out means you’re feeling anxious about something or that dreams of falling represent you feeling out of control. The truth is, debate continues among sleep experts as to why we dream. Some interpret dreams as carrying symbolic significance, while others regard them as arbitrary and devoid of meaning. Sigmund Freud’s original theory of dreams suggests that dreams represent unconscious desires, thoughts, wish fulfilment, and motivations. More recent hypotheses propose that dreaming aids in the brain's processing of both past memories and incoming information. One prominent theory is the activation-synthesis hypothesis proposed by psychiatrist Allan Hobson and neuroscientist Robert McCarley. According to this theory, dreams arise from random neural activity in the brainstem, which the cerebral cortex then attempts to synthesize into coherent narratives.

What is the Purpose of Dreaming?

  • Memory consolidation: Some researchers propose that dreaming aids in the consolidation of memories, potentially enhancing cognitive function by strengthening memory and facilitating recall.
  • Emotional processing: Dreaming may provide a platform for the brain to engage with and process emotions in diverse contexts, contributing to emotional regulation. Neuroimaging studies have shown increased activity in brain regions involved in emotion regulation and memory encoding during REM (rapid eye movement) sleep, the stage most associated with dreaming.
  • Cognitive "housekeeping": It's suggested that dreaming serves as a form of mental organisation, clearing away irrelevant information, similar to tidying up the brain.
  • Replay of recent events: Dream content might represent a distorted replay of recent experiences, allowing the brain to review and analyse events.
  • Incidental brain activity: Alternatively, some experts view dreaming as incidental brain activity during sleep, lacking intrinsic purpose or meaning.

Basically, researchers still aren’t sure exactly what the purpose of dreams are and although we have many ideas and hypotheses, the evidence to date is still inconclusive.

Do Dreams Have Meaning?

The interpretation of dreams and their potential significance is the subject of considerable debate. While certain psychologists advocate for the idea that dreams offer insights into an individual's psyche or daily experiences, others contend that the erratic and perplexing nature of dream content makes them an unreliable source of meaning. Given the available evidence on the meaning of dreams, it’s hard to definitively state that there is a conclusive approach to interpreting and comprehending the meaning of dreams.

Dreams remain an enigma, but one thing’s for certain – a good night’s sleep fuels a healthy mind (and subconscious!). Let Dial-a-Bed help you to dream better. No matter what’s going on in your subconscious, allow your bed to provide many dreamful and sleep-resting nights. Visit your nearest Dial-a-Bed store or shop online 24/7, to find your perfect match.