History of study: from mechanism to subjectivity
In the history of physiology, views on emotional experiences underwent significant changes. Initially, researchers faced the problem of anthropomorphism—the unconditional and uncritical projection of human feelings and experiences onto the animal world.
Following sharp criticism of this approach, science swung to the opposite extreme. At a certain stage, emotions were completely excluded from the study of animal life and experimental research. Some scientific directions attempted to reduce all reactions of living organisms exclusively to mechanical reflexes in response to external stimuli, ignoring the internal world.
However, the prominent physiologist I.P. Pavlov considered the complete denial of the subjective world "foolishness." He emphasized that psychology, as a discipline formulating the phenomena of the subjective world, is completely legitimate and necessary. It is precisely on the basis of this subjective world that a person's entire social and personal life is built, and the task of real science is to deeply analyze this aspect, not ignore it.
Main properties and characteristics
The physiological and psychological picture of emotions is composed of several fundamental characteristics:
- Totality and continuity. An emotional background is always present. It is practically impossible to single out a human state that is not accompanied by subjective experiences. They permeate all levels of vital activity: from basic instinctive impulses to the highest and most complex forms of social activity.
- Connection with needs. Experiences are inextricably linked with behavior. They accompany both the emergence of numerous needs and the process and forms of their satisfaction. Any human action is inextricably linked with self-awareness and a formed attitude toward the surrounding world.
- Dynamics of intensity. The severity of experiences can fluctuate across a huge range. The minimum level is observed during certain phases of physiological sleep or under anesthesia. The maximum point is affect, a critical state in which a person completely loses the ability to control their actions.
- Clinical significance. Emotions are closely linked to physical status. The patient's general well-being, as well as specific ailments, always go hand in hand with characteristic emotional sensations, which is important to consider when taking a medical history and assessing patient status.
Functions of emotions
The biological significance of subjective experiences is enormous. First and foremost, they act as unique "bearings" or sensitive indicators that constantly scan and reflect:
- The internal states of the organism and actual needs.
- External environmental impacts (this is especially acute in the social sphere, during human interaction).
- The subject's general attitude toward themselves and reality.
In addition, emotions perform vital evaluative and prognostic functions. They enable the organism not only to quickly evaluate its current physiological state and the nature of environmental factors, but also to anticipate these impacts in the future in order to adapt behavior in advance.
Classification: polarity of experiences
Traditionally, all subjective human experiences are divided into two polar groups depending on their sign and effect on behavior:
- Negative emotions. Signal distress, unmet needs, or danger. These include: fear, hunger, anger, anguish, disappointment, hatred, disgust.
- Positive emotions. Arise upon successful satisfaction of needs or a favorable prognosis. This group includes: joy, pleasure, love, delight, pride, satisfaction.
Briefly: answers to topical questions
What functions do emotions perform according to the normal physiology course?
Emotions perform the following functions:
- Indicator function — act as "bearings" of internal states, external influences, and the subject's attitude toward themselves and surrounding reality.
- Evaluative function — allow one to evaluate their state and the impact of environmental factors.
- Prognostic function — allow one to anticipate the impact of environmental factors.
- Communicative function — serve as a means of communication and interaction between living beings; the external expression of emotions helps recognize intentions, such as aggression or friendliness.
Which brain structures form the substrate for the formation of emotions?
The substrate for the formation of emotions is the "limbic brain"—a functional association of ancient brain formations. Key structures of the limbic system include:
- Hypothalamus — the central hub of autonomic and endocrine regulation.
- Septum — the region associated with pleasure centers.
- Amygdala (amygdaloid bodies) — plays a key role in the formation of fear and aggression.
- Hippocampus — associated with memory, spatial orientation, and the emotional coloring of memory.
- Cingulate gyrus — participates in the regulation of behavior and autonomic functions.
What are the main physiological theories of emotion?
In normal physiology, several main theories of emotion are distinguished:
- Biological theory of emotions (P.K. Anokhin) — considers the evolutionary and adaptive contribution of emotions to the activity of living beings.
- Informational theory of emotions (P.V. Simonov) — asserts that emotion is a reflection of an actual need and the probability of its satisfaction.
- Peripheral theory of emotions (W. James and C. Lange) — assigns a decisive role to afferentation from internal organs and muscles, asserting that emotion arises as a consequence of physiological changes.
- Cortical theory of emotions — describes the regulatory role of limbic structures in suppressing or enhancing emotions.
What autonomic reactions accompany the development of strong emotions?
The development of emotions is accompanied by peripheral components: emotional excitation spreads from limbic structures through the somatic nervous system, autonomic nervous system, and humoral factors; due to generalization, any emotion encompasses virtually the entire organism.
Involuntary autonomic manifestations include:
- Cardiovascular system — cardiac activity, changes in vascular lumen; sympathetic influences enhance heart contractions, increase heart rate, and raise blood pressure.
- Respiratory system — changes in the tone of smooth muscles of the lungs; sympathetic influences dilate bronchi and increase pulmonary ventilation volume.
- Digestive tract — changes in the state of smooth muscles and sphincters; the sympathetic nervous system reduces the tone of the digestive tract, weakens absorption and enzymatic breakdown in the intestine, and emotional stress is a factor inhibiting secretion.
- Skin and glands — sweating; the galvanic skin response is an indicator of emotional stress and sympathetic nervous system activity.
- Other sympathetic manifestations — pupillary dilation and increased secretion of catecholamines by the adrenal glands.
Class and exam questions
What is affect from a physiological perspective?
This is a state of maximum emotional intensity in which an individual completely loses control over their actions and behavior.
Why did I.P. Pavlov defend the study of the subjective world?
He considered the denial of the subjective world "foolishness," since it is precisely on its basis that a person's entire personal and social life is built, and science is obligated to analyze this.
What is the main biological role of emotions?
They serve as indicators (bearings) of internal state and external influences, allowing one to evaluate the situation and anticipate future events. This distinguishes a living being from a robot.
What is the prognostic function of emotions?
Thanks to emotions, a person is capable not only of reacting to current environmental factors, but also of anticipating their impact in advance, adjusting their behavior.
What else to study on this topic
- The role of emotions in the formation and reinforcement of conditioned reflexes
- The connection between the emotional background and memory mechanisms
- Emotions as a component of motivational excitation
- Physiological changes in the body during a state of affect
- The impact of sleep phases and anesthesia on the reduction of emotional activity
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