Drinking Behavior

Abstract

Drinking behavior is a type of behavior: the ingestion of water and other liquids, ranging from homeostatic intake corrected to need by thirst to motivated consumption with no fluid need behind it. Cognitive psychology concentrates on that motivated strand, above all alcohol, where drinking becomes a decision shaped by expectancies and motives, and the Medical Subject Headings file Alcohol Drinking and Alcohol Abstinence beneath the descriptor. This article sets out why people drink when thirst is not the reason, how expectancies and motives organize consumption, how alcohol narrows attention once it is acting, and how automatic approach tendencies compete with deliberate control. How far the vocabulary of motives and expectancies reaches into severe, physically dependent drinking remains contested. Three demonstrations make the four-factor motive model, the attentional narrowing of alcohol myopia, and the dose-impairment curve concrete.

Keywords: drinking behavior, drinking motives, alcohol expectancies, alcohol myopia

Drinking behavior is the heading the National Library of Medicine uses for the ingesting of liquids and the patterns in which it occurs. At one pole it is a homeostatic act: the body monitors fluid volume and concentration, thirst signals a deficit, and drinking corrects it until satiety ends the bout. At the other pole it is a motivated act with no homeostatic trigger, the deliberate consumption of beverages—coffee, sugary drinks, and most consequentially alcohol—chosen for what they are expected to do to mood, arousal, and the moment. The cognitive question lives at that second pole: when drinking is not corrected to need, what governs how much, how often, and why. The answer that has emerged is that motivated drinking is organized by what people expect a drink to do and the motives that expectation serves, and then modulated, once alcohol acts, by changes in attention and control.

What Drinking Behavior Is

The descriptor is broad on purpose. In its physiological sense, drinking is one of the body's regulated behaviors: osmotic and volume signals generate thirst, thirst motivates fluid intake, and satiety terminates the bout before the corrected state is even registered in the blood. That homeostatic loop is well-understood textbook physiology and is not where the cognitive puzzles lie, because the behavior is tightly yoked to need. The interesting variation appears once drinking comes uncoupled from fluid balance.

Most human drinking of interest to psychology is of this second, motivated kind. People drink coffee for alertness, sugary drinks for palatability, and alcohol for a wide range of expected effects, and in none of these cases is thirst the driver. Here drinking becomes continuous with ordinary decision making: a choice to consume, in a particular amount, for an anticipated outcome. Because alcohol is the motivated beverage with the largest behavioral and public-health footprint—the Global Burden of Disease analysis ranks alcohol among the leading risk factors for death and disability worldwide (GBD 2016 Alcohol Collaborators, 2018)—and because the Medical Subject Headings place Alcohol Drinking and Alcohol Abstinence beneath this descriptor, the cognitive analysis that follows concentrates on alcohol while the framework generalizes to other motivated drinking.

The oldest psychological account of why people drink alcohol is reinforcement: drinking is a learned behavior maintained by its consequences, classically the reduction of tension and aversive states (Conger, 1956). Tension reduction proved too simple on its own—alcohol does not reliably reduce tension, and many people drink when calm—but the reinforcement frame survives in a more cognitive form. What a person has learned to expect a drink to do, and the motive that expectation serves, now carry the explanatory weight.

Types of Drinking Behavior

Within the Medical Subject Headings, Drinking Behavior is the parent of two narrower headings that split the motivated pole along a single axis: whether alcohol is consumed or withheld. The groupings are a library indexing classification, not a causal taxonomy: they are not mutually exclusive in time, since a single person moves between drinking and abstinence, and abstinence is defined only relative to the drinking it withholds. The parent heading sits in turn beneath the general category of behavior. Neither subtype yet has a dedicated article on this site; both are named here so the descriptor's structure is visible.

Table 1

Narrower Headings Indexed Under the MeSH Descriptor

The homeostatic, thirst-driven drinking described above is not separately filed beneath this descriptor at all, a reminder that the MeSH tree captures the alcohol-centered share of the construct rather than its full physiological range.

Why People Drink: The Motivational Model

The organizing framework for motivated drinking is the motivational model of alcohol use, which holds that all the varied influences on drinking—personality, biology, upbringing, culture, the immediate situation—converge on a single proximal cause: the change in affect a person expects drinking to produce. Drinking occurs when that expected affective change is, on balance, positive; the decision is the final common pathway through which everything else operates (Cox & Klinger, 1988). The model is cognitive because the operative variable is an expectation, not a pharmacological fact: two people who will feel the identical effect may drink differently because they anticipate it differently.

The content of those expectations is captured by expectancy theory. What a person believes alcohol will do—make them sociable, relaxed, bold, or sedated—predicts how much and how often they drink, and expectancies measured in adolescence forecast later consumption, so they are a cause and not merely a correlate (Jones, Corbin, & Fromme, 2001). Expectancies form early: even young children, long before they drink, already hold affective expectancies about alcohol that track their parents' drinking, showing how early the learning that feeds the motivational model begins (Kuntsche & Kuntsche, 2018).

Expectancies answer what a person expects; motives answer what they want that effect for. The dominant taxonomy crosses two dimensions—the valence of the desired outcome (positive, to gain a good feeling; negative, to escape a bad one) and its source (internal, within the person; external, in the social world)—to yield four motives: enhancement (internal/positive), coping (internal/negative), social (external/positive), and conformity (external/negative) (Cooper, 1994). The distinction is not academic: coping motives, in particular, predict heavier and more problematic drinking than social or enhancement motives, because drinking to escape a negative internal state is more easily reinforced into a habit. The demonstration sets a drinker's motive profile and shows the pattern each predicts.

The four-factor model of drinking motives

Motives cross two dimensions—the valence of the outcome a drinker seeks (positive, to gain a good feeling; negative, to escape a bad one) and its source (internal to the person, or external in the social world)—to yield four motives. Set a drinker’s profile and watch the predicted problem-drinking index. Coping motives (internal–negative) carry the most risk.

Dominant motive: Social. Predicted problem-drinking index: 4.5/10. A predominantly positively reinforced profile, associated with heavier but less uniformly problematic drinking.

Alcohol and Attention: The Myopia Model

The motives and expectancies above explain the decision to drink. A separate question is what alcohol does to cognition once it is acting, and the most influential answer is alcohol myopia. Alcohol does not uniformly dull the mind; it narrows the attentional field, so that perception and thought fall increasingly under the control of the most immediate and salient cues while distal, abstract, or inhibiting cues drop out of view (Steele & Josephs, 1990). The intoxicated person is not globally impaired so much as cognitively short-sighted.

The model's power is that it predicts opposite effects from the same mechanism, depending on what happens to be salient. When an impelling cue dominates—an attractive risk, a provocation—myopia removes the restraining thought and behavior is disinhibited. But when an inhibiting cue is made salient instead, the same narrowing can suppress a behavior that a sober person would have performed. Alcohol also produces “drunken self-inflation” and relief from anxiety precisely when a distracting activity keeps worrying thoughts out of the narrowed field. Disinhibition, in this account, is not a direct pharmacological release but a consequence of which cues survive the attentional bottleneck. The demonstration makes the shrinking spotlight and its cue-dependent consequences explicit.

Alcohol myopia: the shrinking attentional spotlight

Alcohol does not uniformly dull the mind; it narrows attention to the most immediate, salient cues. Raise the blood alcohol concentration to shrink the attended field and watch which cues survive. The same narrowing disinhibits when an impelling cue is central and suppresses when an inhibiting cue is central—the consequence depends on what happens to be salient.

Both impelling and inhibiting cues are still in view; a sober-like weighing is possible.

Automatic and Controlled Processes

Why does drinking, for some people, continue against clear intention to stop? Dual-process accounts locate the answer in a competition between fast, automatic processes and slower, deliberate control. On the automatic side, repeated drinking builds an appetitive memory that biases cognition toward alcohol: cues associated with drinking capture attention—an attentional bias that predicts craving and relapse (Field & Cox, 2008)—and they trigger automatic approach tendencies and positive implicit associations that operate without, and sometimes against, a person's reflective goals (Wiers & Stacy, 2006). Craving itself is best understood not as a simple urge but as a state in which these automatic processes commandeer attention and working memory, which is why it is so disruptive and so hard to suppress by will (Sayette, 2016). The influential neuropsychological account of why that appetitive pull grows is the incentive-sensitization theory, on which repeated drug use sensitizes a dopaminergic “wanting” system that assigns incentive salience to drug-associated cues, a process distinct from and able to outlast the “liking” the drug produces, so that craving and cue-triggered approach can intensify even as the pleasure of drinking fades (Robinson & Berridge, 1993).

On the controlled side sits self-regulation, and heavy drinking is in part a story of its failure. Self-regulation fails when standards conflict or are unclear, when monitoring lapses—a lapse that drinking itself worsens—and when the capacity to override an impulse is depleted or outmatched (Baumeister & Heatherton, 1996). The two sides interact viciously: alcohol weakens control at the same time as it strengthens the automatic pull, so each drink makes the next harder to refuse. That the automatic side is a learned habit rather than a fixed trait is what makes it a treatment target. Training patients to repeatedly push alcohol cues away—cognitive bias modification of the approach tendency—reverses the approach bias and measurably improves abstinence a year later, direct evidence that the automatic component is causal and modifiable (Wiers et al., 2011).

Dose and Impairment

Underneath the cognition is a dose. How much alcohol reaches the brain, and for how long, is governed by pharmacokinetics that the Widmark model captures well enough to compute. Ethanol distributes through body water, so a given number of drinks yields a higher blood alcohol concentration (BAC) in a smaller person and in bodies with a lower water fraction, and the liver then clears it at a roughly constant rate, giving the familiar rise-and-linear-fall curve. The cognitive effects above are not switches but functions of this curve: attentional narrowing, disinhibition, and impaired control deepen as BAC climbs and recede as it falls. The neuroadaptations that convert repeated intoxication into addiction—a shift from positive reinforcement toward drinking to relieve a negative state, driven by changes in reward and stress circuitry—are organized around this same cycle of intoxication and withdrawal (Koob & Volkow, 2016). The demonstration computes a BAC curve from drinks, body mass, and sex, and the Worked Example below checks one point on it by hand.

The Widmark blood alcohol curve

How much alcohol reaches the brain, and for how long, follows from a dose. Peak BAC = ingested ethanol (g) ÷ (body mass in g × a water-distribution ratio r) × 100, and the liver then clears it at a near-constant 0.015 points/hour. Because alcohol spreads through body water, the same drinks peak higher in a smaller body and in bodies with a lower water fraction. Set the inputs and read the rise-and-linear-fall curve.

Peak BAC 0.103% — after 2 h, 0.073%; reaches zero at 6.9 h. Above the 0.08% driving limit for 1.5 h.

Worked Example

Consider the Widmark estimate of blood alcohol concentration. One US standard drink contains about 14 grams of ethanol, which distributes through total body water. The peak BAC, as a percentage, is the ingested ethanol in grams divided by the product of body mass in grams and a distribution ratio r (about 0.68 for men, 0.55 for women), times 100; the liver then removes roughly 0.015 percentage points per hour. Take an 80-kg man (r = 0.68) who has 4 standard drinks. The ethanol is 4 x 14 = 56 g, and the body-water mass is 80,000 x 0.68 = 54,400 g, so peak BAC = 56 / 54,400 x 100 = 0.103%. Two hours later, elimination has removed 0.015 x 2 = 0.030 points, leaving 0.103 - 0.030 = 0.073%. His BAC falls below the 0.08% legal driving limit only after (0.103 - 0.08) / 0.015 = 1.53 hours, and reaches zero after 0.103 / 0.015 = 6.9 hours. The same 4 drinks in a 60-kg woman (r = 0.55) peak far higher, at 56 / 33,000 x 100 = 0.170%, because the dose is spread through less body water. The numbers are estimates—they ignore absorption time, food, and individual metabolic variation—but the structure is the real lesson: identical drinking produces different impairment across bodies, and the fall is slow, roughly one standard drink's worth of clearance per hour.

Discussion

Drinking behavior is a revealing topic for cognitive psychology because it forces a distinction the folk concept blurs. The behavior ranges from a tightly regulated homeostatic act to a motivated choice with no bodily need behind it, and only the second is cognitively interesting in the way the research literature means. Within that motivated range, the science has converged on a cognitive rather than a purely pharmacological story: drinking is governed by what people expect it to do and the motives that expectation serves, and problematic drinking reflects automatic appetitive processes outrunning deliberate control, not a simple failure of knowledge or a mere chemical compulsion.

That reframing has limits worth stating. The motivational and dual-process accounts fit the transition from use to disorder well, but severe, physically dependent drinking recruits homeostatic and withdrawal mechanisms that the language of motives and expectancies describes only partially. The construct is also stretched by its own breadth: a descriptor that spans drinking water when thirsty and drinking to oblivion holds together as a library heading more comfortably than as a single psychological kind, which is why this article treats the homeostatic pole briefly and the motivated pole at length.

Current Directions

Two strands are active. The first concerns the pattern that does most of the harm: binge or heavy episodic drinking. A large review has consolidated its prevalence, correlates, and the motives behind it, and evaluated interventions, arguing that binge drinking is a distinct behavioral target rather than simply a high point on a consumption scale and that motive-specific and personality-targeted approaches outperform generic education (Kuntsche et al., 2017). The second builds on the finding that affective alcohol expectancies are already present in early childhood and track parental drinking, which pushes prevention earlier and toward the family environment that installs expectancies before a child has ever tasted alcohol (Kuntsche & Kuntsche, 2018).

Running through both is the translation of the automatic-process account into treatment. Approach-bias retraining and related cognitive bias modification, having shown that the automatic component is causal and modifiable (Wiers et al., 2011), are now being refined, tested for durability, and combined with the motivational and neurobiological accounts into integrated models of how repeated motivated drinking becomes compulsive (Koob & Volkow, 2016). The field is moving from cataloguing why people drink toward intervening on the specific cognitive processes that keep heavy drinkers drinking.

Cognitive Implications

Read as cognition, drinking behavior illustrates three larger themes. First, it is a case study in expectancy-driven behavior: the proximal cause is not the drug's effect but the anticipated effect, so a learned mental representation, formed in childhood and revisable, stands between the substance and the act (Cox & Klinger, 1988; Jones et al., 2001). Second, it makes the architecture of dual-process control visible in a high-stakes setting: automatic approach, attentional capture, and implicit association pulling one way while deliberate self-regulation pulls the other, with the balance shiftable by training (Wiers & Stacy, 2006; Baumeister & Heatherton, 1996). Third, through alcohol myopia it shows attention as a mechanism of behavioral change: narrowing the attended field, rather than adding or removing a motive, is enough to flip a behavior on or off, linking drinking to the core cognitive psychology of selective attention (Steele & Josephs, 1990; Field & Cox, 2008).

Common Misconceptions

People drink mainly to quench thirst.

Thirst governs homeostatic fluid intake, but most drinking of psychological interest is motivated consumption with no fluid need behind it. The proximal cause of such drinking is the affective change a person expects, not a bodily deficit (Cox & Klinger, 1988).

Alcohol simply disinhibits by dulling the brain.

Alcohol narrows attention rather than uniformly dulling it. Disinhibition results when an impelling cue dominates the shrunken field; make an inhibiting cue salient and the same narrowing can suppress behavior instead (Steele & Josephs, 1990).

Continuing to drink against one's intentions is just weak willpower.

Heavy drinking reflects automatic approach tendencies and attentional biases that can outrun deliberate control; because these are learned, they can be retrained, and doing so improves outcomes—evidence they are causal, not a mere lack of resolve (Wiers et al., 2011; Field & Cox, 2008).

Glossary

Alcohol expectancy.

A learned belief about what alcohol will do to one's feelings, thoughts, or behavior; such beliefs predict and precede drinking and can form before any alcohol is consumed.

Alcohol myopia.

The model on which alcohol narrows attention to immediate, salient cues, so intoxicated behavior is driven by whatever is most prominent and loses the restraint of distal or abstract cues.

Approach bias.

An automatic action tendency to move toward alcohol-related stimuli; it can be measured, predicts heavier drinking, and can be reversed by cognitive bias modification.

Attentional bias.

The tendency for alcohol-related cues to capture and hold attention preferentially; it tracks craving and predicts relapse.

Binge drinking.

A pattern of heavy episodic drinking that raises blood alcohol concentration to intoxicating levels in a single session; a distinct behavioral target rather than a point on a consumption scale.

Blood alcohol concentration (BAC).

The mass of ethanol per unit volume of blood, usually expressed as a percentage; it rises with dose, falls at a roughly constant rate, and indexes the degree of impairment.

Cognitive bias modification.

A training procedure that repeatedly retrains an automatic bias—such as pushing alcohol cues away to reverse an approach bias—used as an add-on to alcohol treatment.

Coping motive.

Drinking to escape or relieve a negative internal state; an internal-negative motive that predicts heavier and more problematic drinking than social or enhancement motives.

Craving.

A motivational state in which automatic appetitive processes commandeer attention and working memory toward obtaining a drink, disrupting other cognition and resisting voluntary suppression.

Drinking motives.

The reasons a person drinks, organized by the valence of the sought outcome and whether its source is internal or external, yielding enhancement, coping, social, and conformity motives.

Enhancement motive.

Drinking to increase a positive internal state such as excitement or pleasure; an internal-positive motive associated with heavier but less uniformly problematic use.

Homeostatic drinking.

Fluid intake regulated to bodily need: osmotic and volume signals produce thirst, thirst motivates drinking, and satiety ends the bout.

Incentive-sensitization theory.

The account on which repeated drug use sensitizes a “wanting” system that assigns incentive salience to drug cues, distinct from and outlasting the “liking” the drug produces, so craving can grow as pleasure wanes.

Motivational model.

The account on which all influences on drinking act through one proximal variable, the affective change a person expects from drinking, which is the final common pathway to the decision.

Reinforcement.

The strengthening of a behavior by its consequences; in the earliest theories, drinking was maintained by the reduction of tension and other aversive states.

Self-regulation failure.

The breakdown of the control capacity that restrains an impulse, through conflicting standards, lapsed monitoring, or depleted strength; drinking both results from and worsens it.

Widmark equation.

The standard estimate of blood alcohol concentration from ingested ethanol, body mass, and a water-distribution ratio, with a constant elimination rate producing a rise-and-linear-fall curve.

Key Researchers

M. Lynne Cooper

. Curators Distinguished Professor Emerita at the University of Missouri; she developed the four-factor model of drinking motives and the questionnaire that operationalizes it across the motivational literature. Google Scholar

George F. Koob

. Director of the National Institute on Alcohol Abuse and Alcoholism; he co-authored the neurocircuitry model of addiction and the allostatic account of how repeated drinking shifts from positive to negative reinforcement. Wikipedia

Emmanuel Kuntsche

. Director of the Centre for Alcohol Policy Research at La Trobe University; his work on drinking motives, binge drinking, and the early-childhood origins of alcohol expectancies spans the lifespan of motivated drinking. ORCID

Claude M. Steele

. Lucie Stern Professor at Stanford University; with Robert Josephs he formulated the alcohol-myopia model, recasting intoxicated disinhibition as a consequence of narrowed attention. Wikipedia

Reinout W. Wiers

. Professor of developmental psychopathology at the University of Amsterdam; he originated alcohol approach-bias retraining and is a leading figure in the study of implicit cognition and dual-process models in addiction. Google Scholar

Frequently Asked Questions

What is drinking behavior in psychology?

It is the ingestion of water and other liquids and the patterns in which it occurs, the sense in which the National Library of Medicine uses the term. It ranges from homeostatic, thirst-driven fluid intake to motivated consumption of beverages such as alcohol; cognitive psychology concentrates on the motivated kind, where drinking is a choice shaped by expectation rather than need (Cox & Klinger, 1988).

Why do people drink alcohol if it is not for thirst?

Because they expect it to change how they feel. The motivational model holds that every influence on drinking acts through one proximal cause, the affective change a person anticipates, so drinking occurs when that expected change is, on balance, desirable (Cox & Klinger, 1988).

What are the four drinking motives?

Enhancement (to feel good, internal and positive), coping (to escape a bad feeling, internal and negative), social (to enjoy being with others, external and positive), and conformity (to avoid social rejection, external and negative). Coping motives in particular predict heavier, more problematic drinking (Cooper, 1994).

What is alcohol myopia?

The model that alcohol narrows attention to the most immediate and salient cues rather than uniformly dulling the mind. Whether this disinhibits or suppresses a behavior depends on which cue dominates the shrunken attentional field (Steele & Josephs, 1990).

Why do some people keep drinking when they want to stop?

Because repeated drinking builds automatic processes (attentional bias toward alcohol cues and an approach tendency) that can outrun deliberate self-control, while alcohol simultaneously weakens that control. Both the automatic pull and the control failure are involved (Field & Cox, 2008; Baumeister & Heatherton, 1996).

Can the automatic pull toward alcohol be changed?

Yes. Training heavy drinkers to repeatedly push alcohol cues away reverses the approach bias and improves abstinence a year later, showing the automatic component is both causal and modifiable (Wiers et al., 2011).

How is blood alcohol concentration estimated?

The Widmark model divides ingested ethanol by the product of body mass and a water-distribution ratio, then subtracts a constant hourly elimination. Because alcohol spreads through body water, the same number of drinks produces a higher concentration in a smaller person (Koob & Volkow, 2016).

When do alcohol expectancies form?

Early, before drinking begins. Even young children hold affective expectancies about alcohol that track their parents' drinking, so the learning that later feeds the motivational model is under way well before first use (Kuntsche & Kuntsche, 2018).

References