Attachment theory, originally developed by John Bowlby, posits that early interactions with caregivers shape one’s capacity for relationships and emotional regulation. Herman uses this framework to explain how interpersonal trauma—especially in childhood—disrupts the ability to form secure attachments. Traumatized individuals often develop “disorganized” or “insecure” attachment styles, leading to difficulty in forming trust, boundaries, and mutual relationships in adulthood. The theory provides a foundation for understanding why trauma survivors often struggle with intimacy and emotional regulation and reinforces Herman’s emphasis on the importance of restoring relational safety in recovery.

Complex PTSD is a diagnostic term describing the psychological effects of prolonged, repeated interpersonal trauma—often involving captivity or entrapment—such as childhood abuse, domestic violence, or political imprisonment. While Trauma and Recovery predates the formal inclusion of C-PTSD in diagnostic manuals, Herman was among the earliest advocates for distinguishing it from standard PTSD. She outlines its characteristic symptoms: affect dysregulation, altered self-perception, distorted relationships, and persistent shame. Herman’s entire three-stage model is built around addressing the deeper, chronic disruptions caused by complex trauma, which she argues require more than symptom-focused treatment.

Constriction is one of the three core symptom clusters of post-traumatic stress disorder as described in Trauma and Recovery, alongside intrusion and hyperarousal. While intrusion represents the overwhelming return of traumatic memories, and hyperarousal denotes a persistent state of alertness, constriction involves the opposite: a psychological numbing or shutting down in response to trauma. Survivors experiencing constriction may feel detached from their emotions, bodies, or surroundings, often as a form of dissociation. This state, which Herman also refers to as the “freeze” response, serves as a protective mechanism when neither fight nor flight is possible. However, prolonged constriction can lead to chronic emotional disengagement, loss of interest in life, and difficulty forming or sustaining relationships. In her three-stage model of recovery, Herman addresses constriction by emphasizing the need to first reestablish safety and bodily awareness before attempting trauma processing. Constriction highlights the complexity of trauma’s effects—not just in terms of overwhelming presence but also in absence, silence, and emotional void.

Dissociation refers to a psychological defense mechanism in which the mind detaches from the present moment to escape overwhelming experiences. In trauma survivors, this can manifest as depersonalization (a feeling of estrangement from one’s body, thoughts, or surroundings), derealization (a feeling of disconnection from reality), memory gaps, or identity fragmentation. Herman describes dissociation as a common coping mechanism among individuals who experience severe or prolonged trauma, especially when the trauma occurs in childhood. While adaptive in the moment of danger, dissociation often becomes maladaptive when it persists, disrupting memory, identity, and emotional processing. In recovery, reintegrating dissociated parts of the self is a critical therapeutic goal.

Hyperarousal is one of the core symptom clusters of PTSD, involving a persistent state of physiological alertness and anxiety. In Trauma and Recovery, Herman explains that traumatized individuals often live in a chronic fight-or-flight mode, experiencing exaggerated startle responses, sleep disturbances, and irritability. This state of constant vigilance serves as a survival mechanism during trauma but becomes disruptive and exhausting when prolonged. Hyperarousal also impairs concentration and emotional regulation, making daily functioning difficult. Herman emphasizes the need to restore a sense of basic safety before deeper trauma processing can begin.

Intrusion refers to the unwanted return of traumatic memories, sensations, or emotions into the survivor’s consciousness. Herman identifies intrusion as a hallmark of trauma, manifesting in flashbacks, nightmares, and overwhelming emotional states. These involuntary returns defy ordinary memory processes and are often vivid and sensory, lacking narrative coherence. In Herman’s framework, intrusive symptoms must be stabilized before a survivor can safely engage in trauma exploration. As recovery progresses, these memories are gradually integrated into a coherent life story, reducing their disruptive power.

Mentalization is the capacity to understand oneself and others as beings with thoughts, feelings, and intentions. In the afterword and epilogue, Herman references more recent research on mentalization, particularly its effectiveness in helping trauma survivors form secure relationships and regulate emotion. The skill of mentalizing is often disrupted by early trauma, especially when caregivers are inconsistent or abusive. Restoring this ability is central to Herman’s therapeutic aims: Survivors must learn to make sense of their own internal states and reestablish empathy and trust in others as part of relational healing.

Narrative reconstruction is the process of transforming fragmented, dissociated memories into a coherent story. According to Herman, traumatic memories often exist outside normal narrative structure; they are frozen in time, devoid of context, and emotionally overwhelming. The second stage of recovery—remembrance and mourning—focuses on converting these fragmented experiences into an autobiographical narrative. This process allows survivors to regain a sense of continuity and ownership over their lives. Telling the trauma story, especially in a safe therapeutic or group setting, is an act of integration and empowerment.

PTSD is a psychiatric disorder that can develop after exposure to a traumatic event. In Trauma and Recovery, Herman provides a detailed account of PTSD symptoms: intrusion, hyperarousal, and constriction. She also critiques the narrow application of the diagnosis, particularly its military focus, and advocates for recognizing the broader spectrum of trauma—including interpersonal and developmental forms. Herman’s work has been instrumental in expanding public and clinical understanding of PTSD as not merely a wartime injury but a condition that affects civilians across many contexts.