The Role of Interoception in Addiction: A Critical Review

Addiction Is Not a Disorder of Wanting but a Disorder of Sensing

Antonio Verdejo-Garcia’s 2012 critical review consolidates a decade of neuroscience research to deliver a single, devastating reorientation: the central problem in addiction is not impulsivity, not craving per se, and not even the degradation of prefrontal cortex—it is the breakdown of interoception, the capacity to perceive and interpret signals arising from within the body. This is not a minor addendum to existing models. It reorganizes the explanatory hierarchy. The dominant frameworks—incentive salience, impaired response inhibition—treat the addicted person as a decision-maker with broken brakes. Verdejo-Garcia’s synthesis treats the addicted person as someone whose internal compass has been systematically demagnetized. Craving, in this account, is not simply a motivational surge; it is an interoceptive event, a visceral prediction that recruits the insular cortex to generate the felt urgency that precedes drug-seeking. When interoceptive processing is impaired—through chronic substance use, trauma, or neurodevelopmental disruption—the person loses access to the somatic markers that would otherwise signal danger, satiety, or wrongness. They cannot feel their way out of the cycle because the feeling apparatus itself has been colonized. This dovetails powerfully with Antonio Damasio’s somatic marker hypothesis, which Verdejo-Garcia explicitly invokes, but it pushes beyond Damasio by specifying the insula as the neuroanatomical site where interoceptive representations become conscious and thus available to decision-making. The clinical implication is stark: therapies that target cognition without restoring interoceptive accuracy are addressing the symptom’s shadow rather than its source.

The Insula Is the Organ of Psyche That Neuroscience Almost Missed

The review’s most consequential move is its elevation of the insular cortex from a supporting player in affective neuroscience to the central stage of addiction pathology. Verdejo-Garcia marshals evidence from lesion studies—most dramatically, the finding that stroke patients with insula damage can quit smoking effortlessly, as if the addiction had simply evaporated—to argue that the insula is where bodily states are translated into the conscious urges that sustain addictive behavior. This is not metaphor; it is functional neuroanatomy. But the philosophical resonance is impossible to ignore. James Hillman spent decades arguing that psychology’s fixation on interiority—the soul imagined as locked inside the skull—was itself a pathology of literalism. In his 2007 lecture “In,” Hillman dissected how depth psychology had confined psyche to an “interior topography,” forgetting Jung’s own dictum: “not the psyche is in me, but I am in the psyche.” Verdejo-Garcia’s interoception research performs an uncanny parallel operation from the opposite direction. Rather than locating addiction in abstract cognitive dysfunction (the “inside the head” model), it locates the pathology in the body’s failure to communicate with consciousness—a breakdown not of thought but of sensation, not of the prefrontal “executive” but of the visceral “messenger.” The insula becomes, in effect, the organ that mediates between soma and psyche, the anatomical correlate of what Hillman might call the threshold between literal body and imaginal experience. Hillman’s critique in Re-Visioning Psychology that “ego consciousness as we used to know it no longer reflects reality” finds unexpected empirical support here: the addicted ego literally cannot reflect its own bodily reality because the interoceptive channel is degraded.

Interoceptive Failure as the Somatic Correlate of Soul-Loss

Verdejo-Garcia does not use the language of soul, but his findings describe its absence with clinical precision. The review details how chronic substance use blunts interoceptive sensitivity—the ability to detect heartbeat, gut signals, respiratory changes—creating a paradox: the addicted person is simultaneously flooded by craving (a distorted interoceptive signal) and numb to the body’s distress signals that would motivate change. This dual condition—hyperreactivity to drug-related cues and hyposensitivity to homeostatic warnings—maps onto what Hillman, drawing on the underworld tradition, described as a consciousness that has lost its relationship to death. In The Dream and the Underworld, Hillman argued that depth psychology’s mission was to restore the psyche’s relationship with its own depths, with the “thin thread of the dream” that leads downward. Interoception is that thread’s somatic analog: the body’s own dream of itself, its continuous murmur of states and needs that, when functioning, anchors consciousness in lived reality. When interoception fails, the person is unmoored—not in the romantic sense of spiritual wandering, but in the clinical sense of being unable to register satiety, danger, or the simple fact of being alive in a body that is deteriorating. Hillman wrote that “the soul moves, via the pathologized fantasy of disintegration, out of too-centralized and muscle-bound structures.” Verdejo-Garcia’s addicted subjects are trapped in exactly such structures: rigid craving loops that have replaced the fluid, responsive interoceptive dialogue between body and psyche.

From Laboratory to Consulting Room: Why This Review Changes Clinical Practice

The review’s final contribution is translational. Verdejo-Garcia argues that interoceptive training—mindfulness-based interventions, body-scan techniques, biofeedback—should be integrated into addiction treatment not as adjuncts but as primary therapeutic targets. This recommendation acquires additional force when read alongside Hillman’s insistence in The Soul’s Code and elsewhere that psychology must attend to the world’s own suffering rather than retreating into subjective interiority. The addicted body is not merely a vehicle for a disordered mind; it is itself the site of the disorder, and its restoration is not a byproduct of cognitive therapy but its prerequisite. Verdejo-Garcia’s review also implicitly challenges the spiritual bypass common in recovery culture—the notion that insight, willpower, or higher-power surrender can overcome addiction without addressing the body’s broken sensing apparatus. In this, it aligns with Gabor Maté’s work on developmental trauma and addiction, which similarly insists that the body remembers what the mind represses.

This review matters because it gives neuroscientific precision to an insight that depth psychology has circled for a century without quite landing: that the psyche is not housed in cognition but woven through the body’s capacity to sense itself. For anyone working at the intersection of addiction, embodiment, and soul, Verdejo-Garcia’s synthesis is the empirical ground on which those traditions can finally meet.