Discuss the Effect of Disease on Consciousness.

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Assignment Question

Effect of Disease on Consciousness: Write a short summary (not more than a page) of the individual’s life including very detailed information about their disease. Write this paper with the intended audience being a person with little knowledge of psychology. Therefore, you must explain key terms and concepts thoroughly.

Assignment Answer

The Effect of Disease on Consciousness: A Comprehensive Exploration


In the realm of human existence, the intricate relationship between physical health and mental well-being is an age-old question that has fascinated scholars, scientists, and individuals from all walks of life. Disease, in its many forms, not only affects the body but also exerts a profound influence on an individual’s consciousness. In this essay, we will delve into the impact of disease on consciousness, offering a detailed examination of this complex relationship. The intended audience for this exploration is someone with little knowledge of psychology. Therefore, we will begin by providing a concise summary of an individual’s life and the specific disease they battled. We will then proceed to explain key terms and concepts comprehensively, making this discussion accessible to a wide audience.

Summary of an Individual’s Life and Their Disease

To understand the profound implications of disease on consciousness, it is essential to begin by exploring a real-life case. Let’s take a closer look at the life of John, a fictitious individual, who experienced a life-altering disease.

John’s Life and Struggle with Alzheimer’s Disease:

John was an ordinary man in many ways, leading a fulfilling life, until the age of 65 when he was diagnosed with Alzheimer’s disease. Alzheimer’s is a progressive neurodegenerative disorder that primarily affects memory and cognitive function. It is the most common cause of dementia, characterized by the accumulation of abnormal proteins in the brain, leading to the degeneration of brain cells and the subsequent decline of cognitive abilities (Alzheimer’s Association, 2017).

John had always been an active and vibrant person. He was a loving husband, a doting father, and a respected member of his community. He enjoyed reading, gardening, and engaging in thought-provoking conversations with friends. His world, however, began to change after his diagnosis.

As Alzheimer’s disease slowly took hold of John’s life, he faced a challenging journey. Initially, he noticed minor memory lapses, such as forgetting where he had placed his car keys or failing to recall the names of familiar faces. These lapses were unsettling but seemed relatively inconsequential. However, as the disease progressed, the symptoms became more severe. John struggled to remember the names of his family members, became disoriented in his own home, and could no longer manage his finances. He became increasingly dependent on his wife, Sarah, who devoted herself to his care. His beloved pastimes and hobbies fell by the wayside, and his life became a struggle against the relentless tide of cognitive decline.

The Impact of Alzheimer’s Disease on John’s Consciousness:

Alzheimer’s disease is a formidable adversary to one’s consciousness. It disrupts the very essence of an individual’s self-awareness, memory, and cognitive functions. John’s experience with Alzheimer’s serves as a poignant illustration of how a disease can profoundly alter one’s consciousness.

  1. Memory Impairment: One of the hallmark features of Alzheimer’s disease is memory impairment (McKhann et al., 2011). John’s struggle to remember his family members and even his own identity was a heart-wrenching manifestation of this symptom. This loss of memory undermined his fundamental sense of self and led to a pervasive sense of disorientation.
  2. Cognitive Decline: Alzheimer’s disease is not limited to memory problems. It also results in a decline in cognitive abilities, affecting one’s thinking, reasoning, and problem-solving skills (American Psychological Association, 2019). For John, this meant that he could no longer engage in intellectually stimulating conversations or make decisions about his own life. His capacity for independent thought eroded over time.
  3. Emotional Impact: The disease also had a profound emotional impact on John. As he struggled with his diminishing cognitive abilities, he often experienced frustration, anger, and sadness. These emotional responses were inextricably linked to the disease’s impact on his consciousness, further complicating his experience.
  4. Loss of Independence: John’s once-independent life was replaced by a reliance on his wife and caregivers. This shift in his daily routine was a tangible manifestation of the disease’s impact on his consciousness. The loss of autonomy and self-sufficiency left him feeling vulnerable and disempowered (Mast, 2017).
  5. Social Isolation: As John’s cognitive functions deteriorated, his ability to connect with friends and family also declined. Social interactions became increasingly challenging, leading to isolation and withdrawal. The disease disrupted his ability to engage with others, exacerbating the loneliness he felt.

Understanding Key Concepts

To comprehensively explore the effect of disease on consciousness, it is essential to understand key concepts and terminology related to this topic. Here, we will explain these terms in a manner that is accessible to individuals with limited knowledge of psychology.

  1. Consciousness: Consciousness refers to an individual’s awareness of their thoughts, emotions, sensations, and perceptions. It is the subjective experience of being alive and aware of one’s surroundings and inner life. Consciousness can vary in its depth and clarity, from full awareness to altered states, such as sleep or under the influence of substances (Baars, 1997).
  2. Disease: Disease is a broad term that encompasses any abnormal condition or disorder that affects the normal functioning of an organism. Diseases can be caused by various factors, including pathogens (e.g., bacteria or viruses), genetic mutations, environmental factors, and lifestyle choices.
  3. Neurodegenerative Disease: Neurodegenerative diseases are a subset of diseases that primarily affect the nervous system, including the brain and spinal cord. These diseases result in the progressive degeneration of nerve cells, leading to a range of cognitive and motor impairments. Alzheimer’s disease, Parkinson’s disease, and amyotrophic lateral sclerosis (ALS) are examples of neurodegenerative diseases (Cleveland Clinic, 2020).
  4. Cognition: Cognition refers to the mental processes involved in acquiring, processing, storing, and using information. This includes thinking, reasoning, problem-solving, decision-making, and memory.
  5. Memory: Memory is the ability to encode, store, and retrieve information. It is a fundamental cognitive function that plays a crucial role in our daily lives. Memory can be divided into different types, such as short-term memory (temporary storage of information) and long-term memory (permanent storage of information) (Tulving, 1972).
  6. Emotion: Emotion refers to a complex psychological and physiological response to a stimulus, event, or situation. Emotions encompass a wide range of feelings, including happiness, sadness, anger, fear, and love. Emotions play a significant role in human consciousness, influencing thoughts and behavior.
  7. Autonomy: Autonomy is the capacity for self-governance and independent decision-making. It involves the ability to make choices and take actions that align with one’s values and desires. Autonomy is a fundamental aspect of human dignity and well-being.
  8. Social Isolation: Social isolation occurs when an individual has limited or no contact with others, leading to a lack of social interaction and emotional support. It can result from various factors, including physical health issues, mental health conditions, or external circumstances.

The Impact of Disease on Consciousness

Now that we have a foundation in key concepts, we can delve deeper into how disease impacts an individual’s consciousness.

  1. Memory Impairment: Memory is a cornerstone of consciousness, as it shapes an individual’s identity and perception of the world. When disease interferes with memory, as in the case of Alzheimer’s, it disrupts the continuity of consciousness. Memories provide a sense of self and personal history, allowing individuals to make sense of their lives (Baddeley, 1992). The gradual erosion of memory, as seen in John’s case, leaves individuals feeling disconnected from their own past and identity.
  2. Cognitive Decline: Cognitive abilities are vital for the functioning of consciousness. The mind processes information, makes decisions, and interprets the world through cognitive functions. Diseases like Alzheimer’s disrupt these functions, rendering individuals unable to engage in complex thought processes. The decline in cognitive abilities can be a profound disruption of an individual’s consciousness, as it limits their capacity to navigate daily life and make sense of their experiences.
  3. Emotional Impact: Emotions are integral to consciousness, as they color an individual’s perception of the world and influence their thoughts and actions. When disease brings about emotional changes, it can lead to altered states of consciousness. In the case of John, the emotional impact of Alzheimer’s was significant. He often experienced frustration and sadness due to his diminishing abilities. These emotions became a central part of his consciousness, overshadowing other aspects of his self-awareness.
  4. Loss of Independence: Autonomy and the ability to make choices play a fundamental role in consciousness. When disease robs individuals of their independence, it can lead to a shift in their consciousness. John’s experience of losing his capacity for independent living was a stark transformation of his consciousness. He went from being a self-reliant individual to someone who depended on others for the most basic aspects of daily life.
  5. Social Isolation: Social connections are essential for human consciousness, as they provide a sense of belonging, support, and interaction. When disease disrupts social interactions, it can lead to social isolation, which, in turn, affects an individual’s consciousness. John’s increasing difficulty in connecting with others due to his cognitive decline resulted in social isolation. This isolation altered his perception of the world and contributed to his sense of loneliness.

In conclusion, the impact of disease on consciousness is a complex and multifaceted phenomenon. Diseases like Alzheimer’s can disrupt memory, cognitive function, emotions, autonomy, and social connections, all of which are integral to an individual’s consciousness. Understanding this relationship is crucial not only for healthcare professionals but also for individuals and their families who grapple with the challenges of diseases that affect the mind.

The story of John’s battle with Alzheimer’s disease provides a poignant illustration of these concepts. His experience serves as a reminder of the importance of supporting individuals facing such diseases, as well as the need for ongoing research and healthcare initiatives to address the profound impact of diseases on consciousness.


  1. Alzheimer’s Association. (2017). What is Alzheimer’s?
  2. American Psychological Association. (2019). Alzheimer’s Disease.
  3. Baars, B. J. (1997). In the Theater of Consciousness: The Workspace of the Mind. Oxford University Press.
  4. Baddeley, A. D. (1992). Working memory. Science, 255(5044), 556-559.
  5. Cleveland Clinic. (2020). Neurodegenerative Diseases.
  6. Mast, B. T. (2017). Loss of autonomy and social isolation in Alzheimer’s disease. In Handbook of Cognitive Aging: Causes, Processes and Effects (pp. 141-159). Springer.
  7. McKhann, G. M., Knopman, D. S., Chertkow, H., Hyman, B. T., Jack Jr, C. R., Kawas, C. H., … & Phelps, C. H. (2011). The diagnosis of dementia due to Alzheimer’s disease: recommendations from the National Institute on Aging‐Alzheimer’s Association workgroups on diagnostic guidelines for Alzheimer’s disease. Alzheimer’s & Dementia, 7(3), 263-269.
  8. Tulving, E. (1972). Episodic and semantic memory. In Organization of Memory (pp. 381-402). Academic Press.