Biological motivations
Biological motivations in physiology are also referred to as primary drives, lower, simple, or primary motivations. These are evolutionarily ancient mechanisms whose main goal is to satisfy leading biological needs, which is absolutely essential for the survival of the individual and the continuation of their species or lineage.
The main types of biological motivations include:
- Hunger and thirst (nutritional and fluid needs);
- Fear and aggression (defensive behavior);
- Sexual and parental drives (reproductive behavior);
- Urges for urination and defecation (excretory needs associated with this group).
Each of these motivations has a strict physiological basis—a specific shift in the body's internal environment. For example, the nutritional need is triggered by a decrease in nutrient levels in the blood. Thirst motivation arises in response to an increase in plasma osmotic pressure. Temperature motivation is formed during any significant change in body temperature, while sexual motivation is directly related to an increase in sex hormone levels in the circulating blood.
Social motivations
Social motivations are higher, or secondary, motivations. Unlike biological ones, they are not innate, but are built upon them and develop gradually. This process occurs through the active interaction of the developing organism with its environment, parents, and other individuals. In humans, the formation of such motivations occurs exclusively under the powerful influence of the social environment.
Three key factors influence the formation of human social motivations:
- Environmental impact;
- Learning processes;
- Memory mechanisms.
Typical examples of social motivations include the drive for education, mastering a profession, an affinity for art, literature, and home improvement. All of these are formed in the process of societal upbringing and are strictly determined by the existing norms of morality, law, and legislation inherent in a particular socio-economic system.
Interaction of motivations and the principle of dominance
In real life, humans and animals regularly encounter situations where they may experience several different needs simultaneously. In such cases, the principle of dominance of needs comes into play.
According to this rule, at any given moment, only the need that is most critical for the survival of the individual or its lineage right now always dominates. As a result, this dominant drive completely takes over the control of the body and constructs a holistic behavioral act aimed exclusively at its immediate satisfaction.
It is important to note the complex interplay between the biological and the social. Social factors can significantly alter the original nature of basic biological motivations. In a well-brought-up person, strict regulation develops during ontogenesis: the satisfaction of biological needs (such as nutritional or sexual) becomes strictly regulated. Unlike animals, in humans these processes are timed to a specific, socially acceptable place and time.
Briefly: answers to topical questions
Which brain structures serve as the centers for the formation of biological motivations?
The centers for the formation of biological motivations are the hypothalamic centers, which play a leading pacemaker role in organizing dominant motivation. The formation of motivations is a systemic process involving several brain structures:
- Hypothalamus—the site of the primary emergence of motivational arousal.
- Limbic system and reticular formation—receive primary connections, enhance arousal, and ensure its irradiation.
- Frontal cortex (Cortex frontalis)—receives ascending information, programs activity, makes decisions, and provides the efferent output for the realization of goal-directed behavior.
Which physiologist is the author of the doctrine of dominance?
The author of the doctrine of dominance is A.A. Ukhtomsky. Study guides indicate that the stage of afferent synthesis is carried out according to the principle of dominance; an increase in the excitability of higher vegetative centers creates a dominance that absorbs other stimuli.
Specifically, which hormones determine the emergence of sexual motivation?
The emergence of sexual motivation (libido) is driven by the accumulation of sex hormones—androgens and estrogens—in the blood. The leading centers of the hypothalamic region are primarily affected by the following hormones:
- Androgens (specifically testosterone)—stimulate sex drive; in men, testosterone is produced almost continuously and shapes sexual behavior.
- Estrogens—together with androgens, determine sex drive in women, peaking at ovulation at the end of the follicular maturation phase.
Virtually all endocrine glands also participate in the realization of sexual behavior.
To remember the physiological triggers of basic motivations, use the mnemonic «PIGMEY TOPIT»: PI-tatelnye veshchestva (nutrients - hunger), Gormony (hormones - sexual), Osmoticheskoe davlenie (osmotic pressure - thirst), Temperatura (temperature - thermal).
Class and exam questions
Which motivations are called primary?
Biological motivations are called primary (or lower). These include hunger, thirst, fear, aggression, as well as sexual and parental drives aimed at the survival of the individual and the species.
What serves as the physiological basis for thirst motivation?
The physiological basis of thirst motivation is an increase in osmotic pressure within the body's internal environment.
What is the essence of the principle of dominance of needs?
The essence of the principle is that when multiple simultaneous needs exist, the one most critical for the survival of the organism or species at the given moment always prevails. It is this need that shapes current behavior.
How does the social environment affect human biological needs?
The social environment and upbringing can alter the nature of basic motivations. As a result, the satisfaction of biological needs in humans is strictly regulated by social norms and tied to a specific place and time.
What else to study on this topic
- General universal properties of biological motivations.
- Neurophysiological mechanisms of memory in the formation of motivations.
- The influence of moral and legal norms on social determinants of behavior.
- The structure of a behavioral act aimed at satisfying a need.
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